Model Boat Mayhem
The Shipyard ( Dry Dock ): Builds & Questions => Pleasure boats, Sports, Race, Power and Leisure Boats: => Topic started by: martno1fan on September 07, 2007, 02:35:10 pm
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Hi guys well my new boat arrived today and i have to say its absolutely stunning,the finnish is exellent.The hull seems very rigid without been too heavy at just over 6lb in weight,the boat was made by Alan Gavin from Blue C Marine and this is his first rc boat design .All i can say is for anyone who thinks new guys cant make great quality boats is try one.These sell at £70 delivered and i couldnt be happier O0.Heres some pics,by the way they come with deck unjoined or joined the choice is youres .I chose unjoined to make it easyer to install the rails etc.
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Looks OK., what length is it please Martin?
You going to run it with surface drive?
Glenn
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It measures 461/2"long including the lip which is large as you can see so will need quite a bit of trimming.The width is 13 " at the widest part and at the transom its 11" across at the chine rails 11 1/2"not including the lip at the deck join.Seems a good size and should make a good stable boat,the sides are3 3/8" at the back from chine to deck join 3 5/8" at deepest and at the transom she is 5 1/2" from deck join to the V.Yes surface drive i have all the hardware ready to be installed O0.
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If I was you I would drill a hole in the center of the step and run a pipe up to the deck to vent the step it will make it quicker and improve the handling
but definitely good looking boat O0
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If I was you I would drill a hole in the center of the step and run a pipe up to the deck to vent the step it will make it quicker and improve the handling
but definitely good looking boat O0
Interesting idea where did you get that from ?any pics of what you mean how does it make it handle better?.cheers
mart
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If I was you I would drill a hole in the center of the step and run a pipe up to the deck to vent the step it will make it quicker and improve the handling
but definitely good looking boat O0
Interesting idea where did you get that from ?any pics of what you mean how does it make it handle better?.cheers
mart
Mart, Andy is right, this is exactly what we do on our full size powerboats. Basically on our big stuff the idea is to allow air to run off the hull at the transom, venting the prop so as it cavitates slightly, because the prop is cavitating it then revs much higher giving superb "hole shot". There isnt much if any advantage running at speed in my opinion.
O0
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so are you saying i should do it ?.
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so are you saying i should do it ?.
No i'm not saying do it as i cant comment on how an RC hull would benefit from venting, i can only give my experience of the full scale boats we make. :angel:
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Hi Mart
Nice looking hull (as we said when "Phantom" first put them on here, sooo long ago) ;)
Nice shade of red ORANGE ;D ;D
I like the new top and there is lots of area to open up for a centre exhaust (unless you're going under deck, then it won't matter).
The spray rails on the bottom look interesting. You will have to set it up to corner 'nose up', as the two front rails finish well forward and there are only the two wide rails at the rear, so set the CB well back otherwise, when you go into a corner, the front will 'grip' and the back will 'slide', giving you a spin! You will probably need a turn fin(s) on it.
As for venting - the principle is sound but remember these boats don't go as fast as the real thing - and air doesn't scale. So to get sufficient air to the step will require some sort of 'ram scoop' on the top. I would just rely on the fact that SOME air will be drawn under the hull from the sides and leave it at that!
There are many more ways (most easier) to get more speed. The step should give an increase on it's own, so I wouldn't be tempted to start 'air injection' at this stage. You can always try it when you've got the most out of it and are looking for the 'extra half mph'. ;D
Good luck and keep us posted.
Danny
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I was just asking thats all ,i wasnt going to do it just yet but who knows i might try it at a later date.Thanks for the tips Danny ill bare your advice in mind when im setting up the balance point,where would you suggest i put the balance point at 25% maybe?.When you say spray rails i presume you mean the chine rails ? .Its a pretty deep v i wouldnt think the chines will be a problem in the turns to be honest but ill bare what you said in mind.Ill run the boat without fins and tabs to start just to see how she handles and make a decision on them then ;).Allan is making me a new hatch as im running a clutch on the zen and the plug sticks up too high for the hatch so hes making me one like in the pic.
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Try it with the balance (CG) level with the outer ends of the step (looks about 25 - 28%).
The shape of the chines means the back end will LIFT on corners (as the boat tries to slide sideways they will act as a step).
The front rails will tend to dig in if the nose goes too low as they are the 'opposite' shape.
You will either have a fantastic runner - or a pig. It's up to you to set it up right O0 - so no pressure then ;D ;D
danny
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Danny everyone told me my woodys chines were wrong and the boat would dig in etc etc ,she runs great so ill wait and see.What do you mean by the shape of the chines will make the back lift what makes you say that? .I havent a clue how it will run to be honest but if looks are anything to go by i cant wait O0.setting it up is half the fun for me and i hope it will run well ;).
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Hi Mart
I'm NOT saying the rails are wrong - you COULD end up with the fastest boat in the country.
If you imagine how the water 'pushes' against the rails when the boat turns, you'll find that the angles on yours will 'push ' the water downwards - hence creating lift. This is not neccesarily a BAD thing - it's just how you handle it. You are right in the only way to tell is to try it. So get cracking O0 ;D ;D ;
Danny
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Ok ill get cracking but first i need some 5 ply and some resin ;),once the rails are in it should come together nicely O0.Thanks for taking the time to explain things mate ,ill be sure to keep you posted as i go cheers.
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Ok ill get cracking but first i need some 5 ply and some resin ;),once the rails are in it should come together nicely O0.Thanks for taking the time to explain things mate ,ill be sure to keep you posted as i go cheers.
So it should be in the water next weekend then Mart?
Glenn
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If I was you I would drill a hole in the center of the step and run a pipe up to the deck to vent the step it will make it quicker and improve the handling
but definitely good looking boat O0
Interesting idea where did you get that from ?any pics of what you mean how does it make it handle better?.cheers
mart
If I was you I would drill a hole in the center of the step and run a pipe up to the deck to vent the step it will make it quicker and improve the handling
but definitely good looking boat O0
Interesting idea where did you get that from ?any pics of what you mean how does it make it handle better?.cheers
mart
I have had a lot of experience with this hull it was first called a riptide made buy John Smith although the top was different the hull is basically the same but I see some of the lines have been have been sharpened up which I see as an improvement but basically the step is facing the wrong way which creates a suction below the boat which sucks the boat down and doesn't let the air in by venting the step it you allow air in and get the lift which will give you the speed,right the handling side as it is the outer edges of the step are higher than the keel line as the water flows over the hull it creates a vacuum pocket ether side of the keel so when you turn and the boat leans you then get vacuum on one side of the keel and as soon as air gets in the other side you will have pressure and at that point you cant know what the boat will do and its not usually nice (I know from my own experience lol) All this is what I discovered when I was running a riptide 1 in omra a few years ago the most fun boat I have had running John Kerr took a photo of it at the Weymouth event 2004 and it made the front cover of the December issue of model boats
At the end of the day it is your boat and it is up to you what you want to do I am just trying to help
Andy
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Hi Andy your help is very much appreciated thanks,ill try her as she is first and see how she handles then i might try what you suggested.Do you have a pic of your riptide and its step,Allan who made this also builds full size boats too,this one is his own design as far as i know.Ill let him answer that one,id love to see some pics of your hull and see the similaritys .Im asuming you drilled a hole in the step on youres and this helped yea ?.I know of one guy who has this same boat with a sikk engine in it but im not sure if hes run it yet but ill be interested to hear how it goes ill need to email a mate of mine who knows him.Ill let you know if i hear anything and thanks again your input is very welcome ,this is only my second gas boat so any help is welcome O0 cheers.
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I wish I could show you some pictures unfortunately I was running on the local haven with the tide flowing doing a bit of a chase boat thing when it hit a just submerged buoy at full pelt well it went about 7ft in the air when it was recovered the hull was damaged to much to repair :'( I had a 50" apache after that but it wasn't the same :(
But having said that here are a couple of the replacement I got for it that I never got round to doing mainly because I went more over to scale(don't say it)
but they must still perform O0
this hull comes in slightly longer at 48" and the tops different but I think your recognise the hull lines although there are differences
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the hull i have was a Shakespeare Designed hull as far as i know, i reduced the step height by 3mm and sharpened the chine and strakes and extended the innermost strakes. The original hull was 49" long with a very rounded transom. The topsides on mine are also inreased by 10mm.
O0
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Do you know of anyone who has one running mate if so any chance of some pics or vids?.
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Andy is this your boat by any chance ?
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no D37 is Johns number that is the later riptide that one has no step and it handled better.
The only picture I have is on the front cover of the December 2004 model boat mag I ll scan it down and post it
Phantom1 funny you should mention Shakespeare because thats where John said hes came from got to some thing in it
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Can i ask where abouts your spark plug was in relation to the transom ie how far? reason i ask is to make sure im going to have enough room as the hatch doesnt go all the way to the front edge of where the screen moulding is as you can see.
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John Smith is running a Riptide. It is not renowned as the most stable of boats and can be a 'handful'.
His best results this year have been two thirds at Stevenage and Weymouth.
Danny
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your just trying to scare me arent yaa Danny ;D,i think the riptide is 11" wide? mines 13" at widest point.11" across the chines at the back so mine should be more stable hopefully.Anyway i have a mate who has one of daves panther hulls and it seems to spend all its time upside down ;).
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here ya go riptide / shakespeare 830.........
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if im not mistaken,john that builds the riptide also works for shakespear, O0 O0
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Andy is this your boat by any chance ?
I've seen that action shot photo of D37 from, I think, Weymouth on more than one occasion - what a great photo.
It matters not how fast or anything else the boat was going - it's just spectacular.
G
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Yea i have to agree there Glenn a great photo and i have more,right a question for yaa my brackets for the strut are standard length which when i mount a wedge shaped block on the transom to bring them back level as the boat has an angled transom the trailing edge of the strut will be 3 .5" behind is that enough or should i make a standoff arm for the brackets?.Also should i bring the tube out dead centre for the flex or offset to the right a touch if i do the latter wont the strut then need to be angled a touch to bring the prop back dead centre ?.
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hi guys stringers are installed next ill join the deck after checking the motor fits ok with the pipe installed in case i need to cut the rails anywhere.dont think i will need to so hopefully i can join the deck to the hull tomorrow ,ill keep you posted O0.heres some pics including some of the hardware and motor ;).
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Well after thinking things over i decided not to join the deck and find the balance point by taping the strut and rudder on the hull and placing everything else in the hull then i marked for the engine mounts and drilled the holes and slotted them so i can move the engine for and aft if needed.i think ill set the balance at 30% and run it like that and if need be ill move the engine further back ,its easier to shorten the flex if need be but i cant lengthen it once its cut well thats how i see it anyway ;D.heres a cpl of pics oh by the way ill leave the deck till last that will make things easier.Im joining the deck and hull via the lip and then ill trim it back to 5 mm and install a deck edging strip.
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Here you are I have scanned the mag to show you my boat and I got the date wrong Dec 2002 it was
http://img.photobucket.com/albums/v407/crashed/riptide1.jpg
http://img.photobucket.com/albums/v407/crashed/riptide2.jpg
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Thanks Andy thats a great pic did she land the right way up when she hit ? ;).ive hit a minor problem on my build i cant get to the bottom hex bolt on my header because of the bend in the header so ill need to swap the hex bolt for a normal bolt so i can use a small spanner on it instead of the hex key.i can get it on ok when the decks not on but what i mean is once its all in the boat ill not be able to get it off ::).only other way would be to make a big enough hole in the transom to allow the pipe to slide right out so i can twist the header down to access the hex bolt and i dont fancy a big hole out the back.
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Yes she always came down the right way ;D have you got room to take the engine of the rubber mounts and slide the engine forward with the manifold I cant quite make out the mounts that you have in the picture
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Mart
Instead of a bolt can you convert to using a stud? Just get two long threaded machine screws of the right thread. Make sure you have enough thread to go through the manifold plus the thickness of a lock washer and the nut. Studlock the screws into the cylinder then cut the head off the screws leaving enough to go through the manifold and to fasten to. Slide manifold on and when thread ends pop through, stick on washer and nut. Tighten evenly - job done (I hope).
Danny
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Would be best to put nut on bolt first then fix it all tighten up nut then cut off bolt head, then when you take the nut off you will sort out thread where cut at same time. :-\ Or not Danny
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I agree Dicky - much easier - as long as you don't put the Dremel through the manifold O0 :D :D
Danny
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I agree Dicky - much easier - as long as you don't put the Dremel through the manifold O0 :D :D
Danny
Sorry, don't know what came over me, I was thinking steady hands like you need on scale work Danny. :angel:
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Haha thanks guys ,Danny i think its sorted you know how when you have that many things on your mind well after a chat to Glenn he kindly reminded me i need to cut the header pipe to length which will hopefully shorten it enough so i can slide the pipe off the header DOH ;D once this is done i can swivel the header to gain access to the stud DOH oh well at least its sorted now i hope hehe.Great idea you had and it might yet be needed thanks mate.By the way im setting balance to 30% that way if need be i can shorten things and move the engine further back you probably are right though maybe further back will be better but at least this way i wont need to buy a new flex if its wrong ;).Im sure you guys will keep me right and its very much apreciated O0.
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Aye. He still had about four inches of header up the tuned pipe... :) :)
A hacksaw will be the answer to everyone's problems.
Glenn
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Ok mr know it all O0 i had that much on my mind i couldnt see the wood for the trees ,well thats my excuse ;D.Now where did i put that hacksaw >:( ;).
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Mart,
Are you going to come racing with us!!!
;D
Simon
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Mart,
Are you going to come racing with us!!!
;D
Simon
Nope ;D i will be at windy to watch you guys if i can make it on the Sunday,probably wont have the boat done by then anyways.Hows she looking mate? doesnt seem like much interest in my build from many ,maybe the guys who referred to it as a tub feel embarrased ;D this things awesome .By the way my mate just got a cat from Nimrif models and hes not happy i think things are in hands of solicitors as he cant get a refund :o.Im very surprised to be honest as i know youve had good experiences dealing with them,but this cat is not good and he paid 200 quid almost.
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Mart,
Dont worry about everyone else, you just stick at it mate.
As far as Nimrif models, the blokes a f****n a******e and a liar, he could have had alot of business from me. What a t****r. Found him really difficult to deal with, blunt, i almost had to beg him to sell me a boat. Customer service is not his strong point.
Never again, his loss!
Regards
Simon
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Cheers mate sorry to hear you had problems with him too,you should see the state of this seemless join on my mates cat >:( he reckons the hulls sound and straight etc when one sponson is like a dogs hind leg :o.i hope wayne takes him to cleaners .he sent a note with the cat saying sorry didnt have time to finnish it off due to a death in the familly blah blah.even if someone did die he cant possibly say the boat is anything like what my mate ordered its bull.
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Mart
Just cos we're not replying to every word, doesn't mean we're not keepiing an eye on you. ;)
There's only a handful of us IC racing lunatics on here so don't feel disappointed if we're busy with other stuff as well (even some boat building occasionally) and don't comment on every picture.
The boat looks good and should go well with the new engine.
If you do go to Windermere, say hello! Be nice to meet you.
Danny
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Mart
Just cos we're not replying to every word, doesn't mean we're not keepiing an eye on you. ;)
There's only a handful of us IC racing lunatics on here so don't feel disappointed if we're busy with other stuff as well (even some boat building occasionally) and don't comment on every picture.
The boat looks good and should go well with the new engine.
If you do go to Windermere, say hello! Be nice to meet you.
Danny
Boat building Danny ??? ;D ;D ;D
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Sorry Danny it wasnt aimed at you ,they know who they are mate and im sure they are watching ;D.Yea she should go well if i set it up right ;D.I made the radio box today just need to sort out the lid from some plexiglass and fix some studs into the box so i can secure the lid.Ill be sure to say hi if i make it to windemere no worries mate,thanks for your help so far and to Glenn and anyone else whos offered advice.By the way phantom is making me a new hatch for the boat as the plug sits too high for this one ::) its as low as i can get it too.
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I tend to forget on which side of the Atlantic this Seaquel is being built on, it seems it is going to run on petrol and gas!! (Dual fuel? Hmm)
If you build another of these hulls, will it be the Seaquel sequel for title of the build thread Mart?
Like Danny, I too have been busy down in the shed, moulding, cutting, laying up, bashing and sanding. And drinking some very nice cider I brought back from Devon - but that's another story.
Got a race to enter you know!!
Glenn.
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Now you know i wasnt talking about you Glenn your one of the nice guys lol ;D,all your help is very much appreciated.There was someone on this site who called my hull a tub and it hit a nerve ,he knows who he is .Maybe thats why he hasnt commented on this thread ,mind you he has a problem with ORANGE !! ;D.By the way my mate got a full refund on his nimrif cat ;) now that was a tub and a half :o.
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Here's one thought for you Martin, I would get the deck on before you bolt everything down hard. The reasoning behind this is to avoid imparting an eventual twist in the hull. The hull with a deck on resists twisting and pinching better than an open hull. It will also mean that you will see that you can get to everything once the hull is joined.
Looking forward to seeing this build on the water. I have heard interesting stories of model stepped mono hulls in the handling department, hope this one runs fast and true :)
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Looking forward to seeing this build on the water. I have heard interesting stories of model stepped mono hulls in the handling department, hope this one runs fast and true :)
There you go trying to scare me again lol ;D,yea dont worry Ian i wont be leaving things in or on the hull when i join it together thanks for the tip.Nothing is tightened down right now anyway but thanks for the heads up.Im in the process of building a radio box from ply so ill try and post some pics when i get it done.I hope it runs fast and true also O0.
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hi mart,boat is coming along mate,i like the stepped hull.should be a quick boat now that you have a zen.glad to see that you are taking your time building it,i have just built a new boat fore omra,should be at windy all be well if testing goes ok., :Dwe will see.keep up the good work, O0kurt
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Thanks mate im glad you like the boat,she certainly looks the part i cant wait to get her wet lol ;) .Look forward to seeing you at windy.
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Mart
Are you going for both days? If so we can all meet up for the celebrations (or drowning the sorrows) on Saturday night.
Nice pub a few of us met up in last year is the Royal Oak. It's near the centre of Bowness and is not touristy, sells real ale so should be good for a hangover on Sunday (why should I be the only one ) ::) ::) ;D
http://www.pub-explorer.com/cumbria/pub/royaloakinnwindermere.htm (http://www.pub-explorer.com/cumbria/pub/royaloakinnwindermere.htm)
See you there
Danny
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Beers good. Should be there, was only going to come over for the Sunday but we shall see if I can wangle a pass out of her that must be obeyed....
G
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Mart
Are you going for both days? If so we can all meet up for the celebrations (or drowning the sorrows) on Saturday night.
Nice pub a few of us met up in last year is the Royal Oak. It's near the centre of Bowness and is not touristy, sells real ale so should be good for a hangover on Sunday (why should I be the only one ) ::) ::) ;D
http://www.pub-explorer.com/cumbria/pub/royaloakinnwindermere.htm (http://www.pub-explorer.com/cumbria/pub/royaloakinnwindermere.htm)
See you there
Danny
Hi mate i will only be there for the Sunday and will have the missus and kids in tow so beer is out im affraid :(,was hoping to make both days but she has to work.nice idea though,just make sure you dont breath on me when we meet on sunday if youve had a skinfull ;D.By the way wheres the racing going to be held ? yea i know the lake dohh but where abouts ?.
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it's the Windermere Power Boat Club
http://www.multimap.com/maps/#t=l&map=54.33224,-2.9345|17|4&loc=GB:53.99916:-2.64911 (http://www.multimap.com/maps/#t=l&map=54.33224,-2.9345|17|4&loc=GB:53.99916:-2.64911)
The little crooked white line top left.
Danny
O0
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pub sound good danny,dont worry mate you wont be the only one,looking forward to a good days racing it seems forever,just hope the weather stays good,,,,,,,,,kurt
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See you there Kurt :D :D :D
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Cheers Danny i asume theres good parking there? or nearby?.
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Parking right down by the lake (usually gets a bit crowded - so bring a few car colour spray cans) ;D ;D
So you won't have far to carry your BIG boats O0 ;D ;D
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a few more pics of my progress O0
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Wow Mart - that engine looks REALLY far back. I assume the tank (bag) will be in front - keep it well filled or you'll have a 'wild salmon' on your hands ;D
I know you don't go racing so are not really interested in OMRArules, but if anyone else reads this and DOES get bitten by the bug (not that you will of course) ;) ;), the pipe is probably past the limit of 65mm. It would be dead easy to rectify though, all you need is a 90 deg bent tube (could be copper, stainless, ally or whatever - it's outside so not going to get that hot) and mount the silencer across the transom. As we race clockwise, this puts the outlet facing AWAY from the noise meter, thus giving you a lower reading! Kills two birds with one stone ;) O0
Not that I would possibly suggest ways of 'bending' rules ;D ;D
Danny
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Danny the engine isnt that far back mate maybe its a decieving pic pluss the clutch makes it look bigger and longer lol and the boat balances at 27%, it can slide for and aft a little to alter that if need be.The plug is 300 mm from the transom,the pipe is only 20 mm out the back what you see is the silencer and thats 100 mm long.I couldnt care less if it breaks a stupid rule to be honest no offence mate,and lets face it that is a stupid rule ;D.I dont see how the engine is far back when the boat balances nicely and yes the tank is in front ;)Thanks for the tip on the copper bend on the transom pitty you didnt tell Glenn that b4 hes just stuck his pipe facing forwards in his miami :D
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ah - but his will look a lot neater ;D ;D
Bl**dy H*ll - another concours winner ::) ::) ::) ;D
Danny
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Dont worry you guys are safe i wont be racing at windy ;D anyway while your on about my engine been far back whos idea was it to set the balance point at 25% or was it at the end of the step :o, the step is at 270 mm from transom, in any case i couldnt mount the engine any further forward theres no room with the hatch as it is.Bringing the hatch further forward would deff help matters for future builds access wise though.
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Well I just thought I would let you know that I hate the lot of you! >:( because of this thread I have had to dust down my apache rebuild it and now I am going to have to spend the day down at the local water to make sure it still runs and handles OK ;) well better enjoy it while I can, its going to cold in the doghouse next week :-\
THANKS GUYS O0
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yea thats right blame me :o lol,let us know how she runs,the boat i mean not the wife ;D.
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You'll be glad you did it Andy O0 ;D ;D
Just checked the forecast for next Sat and Sun
Temp - 52 deg (we'll save on sun cream)
Light rain - in Windermere that means the drops are less than an inch across ;D
WIND 14mph from Southwest - in other words nearly straight up the lake.
That'll sort the men from the bouys :o :o ;D
Danny
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i just hope i can stay away from the bouys ;D ;D ;D
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You'll be glad you did it Andy O0 ;D ;D
Just checked the forecast for next Sat and Sun
Temp - 52 deg (we'll save on sun cream)
Light rain - in Windermere that means the drops are less than an inch across ;D
WIND 14mph from Southwest - in other words nearly straight up the lake.
That'll sort the men from the bouys :o :o ;D
Danny
Smashing. Just what's required. Bit more wind would be good, we shall see.
G.
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not much to report on my build but heres a cpl of pics of the radio box i made ,still needs two more holes drilling along the longest edge for a cpl more hex bolts.,i then need to fit the rubber bellows then i can install the radio gear.also got some nice vents off a mate for the deck that should look nice when fitted.
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heres a few more pics of the progress,i still need to join the deck but ive tes fitted the edging strip and it should just about fit once its joined but will be a tight fit once the deck is fastened as the lip will be a tad thicker.ive also painted a yellow stripe round the boat and edged it with some lime green vinyl ,i think she looks cool 8).ive also made a bracket to hold the cable for the throttle see pic ,let me know what you think of her so far guys.
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Well, I wouldn't buy a car that colour! As long as you are happy. Not much more to now then? Should be ready for the water any day soon. Loi=oking forward to the test run.
G
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Indeed i am happy she looks awesome ;D,nope wont be long now not sure it will be this weekend but maybe next O0.When i do get her wet ill try and get some video of her first run ,hope she runs as well as she looks .
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Hi guys sorry i havent been posting lately but here are a few more pics as you can see i decided to open up the hatch to gain more room to work ::).Im in the process of finnishing the new canopy to fit the opening.i will be running the boat on Sunday all been well.I made a switch puller pusher to swith the radio equipment on and off and its run through a rubber bellow everything is ready now for her first outing ,wish me luck O0.
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Tommorrow is the big day,heres a cpl of pics of the finnished hatch hope you guys like it ;D.
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hi, i have one of these hull with a webra 90 in it and 1 of marlseys jet drives in it and i have to say it has an impressive turn of speed.
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H i mate i ran it today for a few mins and had problems with my water cooling on the header and pipe it just didnt seem to be getting enough water to it so im thinking i need bigger diam tube for the piccup.The rudder one that cools the motor works fine.I cooked the o rings in the manifold on the header so ill need to fit some new ones.Apart from that little hiccup i have to say i was impressed with her,although i never got above 3/4 throttle as im running this motor in, it was fast and turns great too.In fact i will lessen the rudder throw as i spun out once as i think i had to much rudder throw but no big deal.I think this boats going to be very very fast once i get the motor run in and everything dialed in.ill post a short video clip of the test run,its only 2 1/2 mins long but i was planning to run it then cool the motor then back out for a longer run then cool etc then back out for a full tank.I cant wait to see how she goes at full throttle O0,any video of yours running mate?.
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heres the video.
http://www.youtube.com/watch?v=wPHJU6WAxHQ (http://www.youtube.com/watch?v=wPHJU6WAxHQ)
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Nice first run, bet you're smiling O0
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Nice first run, bet you're smiling O0
I was smiling and my knees were shaking lol pitty about the o rings but ill redo the piccup with a larger tube that should sort it ::).
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That clutch would have been useful at Windermere {-)
Are you ever going to race it?
Not bad for fibreglass ;)
Danny
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Danny this is just for fun im not gonna race it i dont have the money or the time to do it to be honest.Its early days yet but i can see the boat been very fast,be interesting to see how she goes in some chop etc.I wish id got to run her longer today to get the motor run in etc and see just how fast she is as the conditions were perfect today for a change.all been well ill take her out again this coming week or weekend once i redo the piccup for the pipe.i did think of using the single piccup in the rudder for all the cooling or would that be no good?.might be too little water to cool the motor manifold and pipe?.
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H i mate i ran it today for a few mins and had problems with my water cooling on the header and pipe it just didnt seem to be getting enough water to it so im thinking i need bigger diam tube for the piccup.The rudder one that cools the motor works fine.I cooked the o rings in the manifold on the header so ill need to fit some new ones.Apart from that little hiccup i have to say i was impressed with her,although i never got above 3/4 throttle as im running this motor in, it was fast and turns great too.In fact i will lessen the rudder throw as i spun out once as i think i had to much rudder throw but no big deal.I think this boats going to be very very fast once i get the motor run in and everything dialed in.ill post a short video clip of the test run,its only 2 1/2 mins long but i was planning to run it then cool the motor then back out for a longer run then cool etc then back out for a full tank.I cant wait to see how she goes at full throttle O0,any video of yours running mate?.
Hmm, canny.
Rudder adjustment easy sorted. I have had problems with one of the headers, where the header pipe moves and restricts water flow. You can feel it just blowing through the pipes and moving the header about a bit.
Once you get the new rings in and seated and aligned correctly it will be OK I am sure. A good first run really. Seems lively enough. Be good to see in rough weather and racing.......
Regards.
G
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Hi Glenn are you saying the water flow on mine could have got restricted that way? if so do you mean to check by blowing through the tubing to test there isnt a blockage?.i did run water through the tubes from a bottle of water to see that water could flow.Daves sending me some new o rings when the postal strikes finnished ::) so ill check things again.After a chat to dave im thinking of trying another piccup attached to the back of the rudder blade or on the transom,im just not confident in this flush one.As for the boat it is def lively and turns well and doesnt need much stick to get it to turn smoothly but i had way too much throw ,i tested that out and she spun out but i wasnt going too fast so no harm done :).I m very pleased with it so far but as you say it will be interesting to see her in rougher water but id prefer another calm day for the second run to get her trimmed and running well O0.
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Hi Glenn are you saying the water flow on mine could have got restricted that way? if so do you mean to check by blowing through the tubing to test there isnt a blockage?.i did run water through the tubes from a bottle of water to see that water could flow.Daves sending me some new o rings when the postal strikes finnished ::) so ill check things again.After a chat to dave im thinking of trying another piccup attached to the back of the rudder blade or on the transom,im just not confident in this flush one.As for the boat it is def lively and turns well and doesnt need much stick to get it to turn smoothly but i had way too much throw ,i tested that out and she spun out but i wasnt going too fast so no harm done :).I m very pleased with it so far but as you say it will be interesting to see her in rougher water but id prefer another calm day for the second run to get her trimmed and running well O0.
Yep, eaxactly right, once it is all assembled, blow through the header and you should feel it easy to get air through. If you fit another pick up you can always divert the flush one straight over the side to see if it is working, if there is water shooting over board then you know it's OK.
Good luck.
Glenn
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Thanks mate yes thats a good idea i might fit a piccup on the transom and run that one and ill run the flush one over the side just to check if it is working which i dont think it is.the only other possibility is i was very unlucky and got a blockage somehow,oh well no real harm done i guess its another lesson learnt(double check everything before i run the boat and recheck once its running.i could see plenty if water from the motors cooling line but the other one was just a trickle so something wasnt right thats for sure ::).
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Yep, all down to experience. Always good to keep a bag of exhaust O rings handy. They do tend to be consumable items.
Glenn
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thanks mate ill keep some handy just in case O0
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Heres the second video shes running pretty well,havent opened her up full bore yet that will come next time out. water piccups are running well now ,the new one i added to the rudder blade to cool the exhaust worked a treat so thats sorted.I think some adjustment is needed to the pipe (shortening) a bit to get her on pipe better but ill have a better idea once i open her up for longer periods and get a good run out of it.Boat seems to run nice and turns are pretty good both ways ,all in all im pretty pleased with how shes shaping up.Let me know what you guys think and feel free to offer any advice cheers.
mart
http://www.youtube.com/watch?v=CVq9zDd_KNE (http://www.youtube.com/watch?v=CVq9zDd_KNE)
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By the way, did you get the chance to stick a hose onto the flush water inlet then over the side to see how much water was coming off that pick up?
Glenn
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Hi Glenn nope i didnt but i will do at some point,i plugged the inlet with silicone to run her yesterday but ill unplug it and test it next chance i get.Thanks for reminding me,the one i put on the rudder blade works great though. I know it will cause a little extra drag but i doubt ill ever notice the difference to be honest so ill probably stick with it.
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Drop me an email or PM then with your address again as I have just the thing for you to bolt to the back of your boat.....
Glenn
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Cheers mate all donations gadly welcome ;D,by the way had her out this morning and altered the carb settings and shortened the pipe almost as much as i can and she ran much better.No video this time my lad forgot to press record ::) oh well,she ran great very fast and turns well so long as i dont try to turn too sharp at full speed as she does dig in a bit.I think i can sort that out a bit but not sure its needed as she does turn well at over half throttle,small movements is the key but thats just normal i guess.I did do a few turns at almost full speed and she does turn ok so long as its a sweeping turn ;) Im not sure shes hitting her max with this pipe yet and i can only shorten it another cpl of mm or thereabouts so fingers crossed.Shes reving much better but ill let you guys have a listen to it next time and give me your opinions on it.She was fast today and i was shaking a little i have to say ;D.
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Shaking is always a good sign!!
According to the purveyors of that pipe, it should be tuned to work OK with the wrap forward header, so they say, I think you might find the first cone is "shorter" than most.
Glenn
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Thanks for that Glenn im happy enough with her speed as she is so its not bog deal,it will be good to see how she handles some wind and chop.She rides the wake ok at full speed but not the same as you know.good thing about this setup is i dont get any water in the hull whatsoever ,at least not while shes thr right way up ;).
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Hi guys well i had her out again today this time in some rougher water and she went great handled it really well.She runs very stable and turns are good ,im really getting to know the boat now and feel confident shes not going to do anything unusual ;).I have about 4 lb of weight up front to keep her from getting too flighty in the chop and she ran very level and even when i could see right under the hull she never seemed likely to do anything unexpected if you know what i mean.Anyway heres a short video so let me know what you think,sorry its not too long but hopefully you can see how shes running even though the quality on utube isnt so great.
http://www.youtube.com/watch?v=4RtYCQIgGcA (http://www.youtube.com/watch?v=4RtYCQIgGcA)
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Mart,
So wheres the video of the rough water then?
;D O0
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Sorry it wasnt quite up to windermere conditions Simon but it was pretty choppy,so you didnt like the video then?.Im carrying a lot of weight in the hull at the min but if i get some good conditions im going to remove it and see what she can do as i think she has the potential to be fast.Might alter the angle of the prop some too but one thing at a time.
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Only joking Mart.
4 kilos is alot of weight, i only run 2 in mine and thats in rough conditions.
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4lb not kilos mate and i know you were joking but seeing as you never said anything about how my boat runs i take it you dont like it >>:-( {-).I realise im carrying a little weight and this was because of the conditions i normally run in and me playing safe.I dont have the luxury of a rescue boat so i prefer not to flip the boat if i can avoid it.That said next year when the weather gets warmer ill take the stabalizers off and let her rip and see what happens.Im not looking for the fastest boat out there,id rather have one thats reliable and stable with a reasonable turn of speed but thats just me i know some guys are out and out speed freaks and like a boat that runs loose and on the edge of total destruction but thats just not me.Thats not to say this hull isnt capable of been fast quite the oposite im sure the step in the hull will ensure it will be a fast boat.Im pleased with the speed right now and i havent even started to experiment yet but im in no rush ,i know you racers need things done in a hurry but id rather take my time get used to it and enjoy it without all the hassle and pressure you guys have.Ive not changed the prop angle once yet nor tried any dif props so im sure theres a lot more speed to be found from any number of changes i can make.I ve seen some really fast boats and some not so fast and it isnt allways the fast ones that exite me to be honest id rather see a boat that looks good on the water to be honest.Take your makara(apache) for instance they arent the fastest hulls arround but they just look right when running to be honest unlike a lot of boats you run against not wanting to name names ;).They look like real boats and drive like one just like mine thats what i mean to say.Any way ill stop rambling on now ::).
Mart
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Sorry mate, looks good.
Boats should look like boats and its not alwasy about the speed, more duration!!!!
Would still like to see it in a crowd though!
O0
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I dont like crowds {-) ill leave that to you racers its not for me.
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:) hay,theres nothing wrong with running a fast boat on the edge,and why should every boat have to look like a boat???everybody likes there boats to go a bit faster,i like mine to be fast and look good,my new boat is not like any other boat out there,but still is a good designed boat that should do well,keeps you on your toes when you run a boat on the edge,maybe not always a good idea.but i only race for the fun of it,your boat seems to be going ok mart,not sure about the rough water,?im sure your boat will give you hours of fun,and that is all its about,enjoy what your doing O0
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Never said there was anything wrong with running them on the edge i just said thats just not me(yet) lol,as for boats looking like real boats thats also my personal preference.It wasnt intended as an insult to anyone so calm down mate ;).As for 4" to 6" chop not been rough i didnt say it was i said rougher as id only had very calm water the first few runs and wanted to see her in some chop ,that said i wouldnt call it calm either fleetwood lake can get very rough check out my woody vids on my utube homepage. The sea breeze at Fleetwood allways keeps you on your toes and because of that bank you get some funny gusts i should know ive sailed sail boats on there for the past few years.I run alone on my lake no resue boat so id rather keep her upright if i can ;) if thats boring to you im sorry but im happy with the boat and how she runs and more to come im sure,not bad for a tub ehh .Of course im sure one day ill flip it no doubt but id rather it be once in a while than every day O0.
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{-)
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heres the new hatch almost done just needs a cpl more coats of paint on the drivers and then clear coating.I made the drivers using brown paper and white glue over plastecine they came out great .Also i posted another vid of her running an ali 78 mm prop,ill post another video of her running an x470 with my mates zen 7 powered cat what a diff this prop made.mind you will need some mods to keep up with that cat hehe.
http://www.youtube.com/watch?v=X_KNprezP00 (http://www.youtube.com/watch?v=X_KNprezP00)
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Nicer hatch Martin O0 good ingenuity making the drivers, must be from the Blue Peter generation {-)
Let's have the vid of your day out with the cat up here and see if that boat moves...... Yep I'm going to keep digging at you until we have seen a FULL BORE video {-) {-) {-) ::) ::)
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Nicer hatch Martin O0 good ingenuity making the drivers, must be from the Blue Peter generation {-)
Let's have the vid of your day out with the cat up here and see if that boat moves...... Yep I'm going to keep digging at you until we have seen a FULL BORE video {-) {-) {-) ::) ::)
Lol Ian here it is dunno how you missed it its on the other site,thought my boat was pretty fast till brods cat came along.I will try to loosen her up some more next time out if the weather keeps nice,should hopefully run even better then.When i can afford one im ordering a prop from chris hoffman O0 unless you know anyone who can lend me one {-) just kidding .Anyway when we going to see a video of your boats ::)?.All i need to do now is sort the chine walk out as its doing that in the vid,hopefully a few adjustments will sort that out,any ideas welcome ;D.Still think the carb could need leaning a touch more also what do you think?.
http://rcuvideos.com/item/JBB44D91VLXJ8S5N (http://rcuvideos.com/item/JBB44D91VLXJ8S5N)
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O0
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Oh, was that full bore {-) {-) {-) {-) {-) {-) {-) {-) {-) {-)
She's running very nicely, a little chine walk is OK don't worry too much about it. Experiment with raising the prop a bit to get a little more hull in the water and dropping it to get less, keep your angle the same. You can play with tabs as well see what effect that has.
Carb is fairly simple, sparkplug a light chocolate brown after a good hard run, I occasionally cut the motor on the water instead of idling in, may give a better idea of the spark plug without fouling at low revs.
Best of all just enjoy the boat and experiment, mark your strut position (scribe) so if you change it and the situation is worse you can move it back easily.
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Cheers for the tips Ian i think i got it covered,good tip on bringing her in by cutting the motor to check the plug didnt think of that.the last time i checked the plug it was a little dark so put that down to maybe been a little rich,maybe it was idling in that made it darker.I think shes running pretty well and im reasonably happy with her,ill play with the strut a bit and see what happens.
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Well my mate Brod gave me his old pipe off his cat from Dave as hes got a new one from Dave to try on his zen 7 along with a REAL Big BORE carb ,i fitted it today,its tad long but should be ok.Dave thinks it will run well even on the deep vee header,its about 2" further out from the transom but if it works well ill maybe move the motor forward a bit to accomodate it better.Sounds much better thats for sure,hopefully ill get some more performance too but thats not why i fitted it.I fitted it because this hanson one is dam loud ::).
http://www.youtube.com/watch?v=j0kh7bw2OLE (http://www.youtube.com/watch?v=j0kh7bw2OLE)
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Bet your neighbors love you Mart! {-)
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Bet your neighbors love you Mart! {-)
Yea O0 waited till they had gone out not that they would be too bothered,it was just a short test.Nice quiet pipe though compaired to those hanson quiet pipes >>:-(.hopefully it will add a bit more power too,if it goes as well as it sounds it will do me .Taking her for a spin on Wed all been well,should have some more video of it running with my mates cat.How do you like the new hatch and home made drivers ;).
Mart
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Very nice, mine are bought and bolted on. Did you see my new cat?
http://uk.youtube.com/watch?v=Y5zNx6oSuww (http://uk.youtube.com/watch?v=Y5zNx6oSuww)
O0
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Very nice, mine are bought and bolted on. Did you see my new cat?
http://uk.youtube.com/watch?v=Y5zNx6oSuww (http://uk.youtube.com/watch?v=Y5zNx6oSuww)
O0
Yea the cat goes well mate,i thought you had one of those .28 motors in a cat ?.
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I had a .28 in a Kyosho RTR boat but it was crap and i ended up splitting the hull. This is a Bittbuger by PIP and should be alot stronger?
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stick the .28 in it O0,you not fancy a gas cat then?.
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Cant run a .28 in it, it will drop into the next class and they run up to 7.5cc
Limited to 3.5cc
Gas cats are not competative in Omra, but i do fancy one as a play thing, mabe next year. I am helping a mate who runs a couple of cats so we will see how it pans out
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Cant run a .28 in it, it will drop into the next class and they run up to 7.5cc
Limited to 3.5cc
Gas cats are not competative in Omra, but i do fancy one as a play thing, mabe next year. I am helping a mate who runs a couple of cats so we will see how it pans out
A gas cat would be competetive and then some with the right hull,im sure of that,i doubt anyones really tried them yet as cats seem to be a rarity over in the uk compaired to the states.The avenger cats are good in the rough stuff my mate has one.There are rough water cats out there you just need to choose wiseley,sonic racing makes some fantastic rough water boats .Pluss cats are so much faster put it this way a cat is much faster with the same motor than a vee,the diff is quite big speed wise.My mates cat went 58 mph with a mild mod zen and his vee went 47mph with the same motor.I didnt realise you were now racing nitro .
ps heres one of the sonic cats running in the sea .http://uk.youtube.com/watch?v=V6iRi3IBzs4 (http://uk.youtube.com/watch?v=V6iRi3IBzs4)