Model Boat Mayhem
The Shipyard ( Dry Dock ): Builds & Questions => Working Vessels => Topic started by: 2772e on July 03, 2006, 09:29:18 pm
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About a year ago I bumped into the forum and sent in some early pictures of my latest RTTL. Martin kindly posted them. Seeing all your lovelly models I thought I should have a go. I found a smaller setting on my digital camera today so here goes.
My dad took me to the RAF museum in Hendon in the 70's and bought a Veron Vosper RTTL model kit and we enjoyed many nights and weekends building her and then sailing her. Then came teens and girls and cars and all that. Then i had my own kids and a demanding job so looked for some kind of release. The model had always lived on a wardrobe and got damaged over the years, so i thought i would rebuild her. I did and my passion was restored.
My next project was a 1/24th version. I managed to track down a hull from Deans Marine and started building number 2. I spent a winter building this and then enjoyed sailing them both for a year. So last April sitting in front of the telly, nothing on. I thought what the hell why not another one! What scale? Oh well, and just plumped for 1/12th.
I contacted Grenwich Martitime Museum and went down to the plans office one day and rooted through all their original blueprints and plans etc and came up ewith the original hull drawrigns. After various copies it was off to the drawring board. I happened by chance on a friends chum who was a architect. After coverting the plans from metric to imperial he converted them to cad, sent me a disc and I had the 14 bulkheads and the keel cnc cut at a wood shop in Cambridge. Most of last summer was then spent in the garage building her up.
Well here she is so far, so far I have only had her in the water three times, (do not build bigger than your bath). Still having teething problems with motors, batteries and props to get good speed but thanks to all on the forum I can see a light at the end of the tunnel.
Thanks to all that I bore with my boat, Martin for a great forum, like mind model maniacs and my wife for putting up with the mess in the house.
Dont know if it interests you but here she is anyway.
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Great looking model, can we have some more pics please.
Unfortunatly when I was out of work a couple of years ago I sold an unbuilt Vernon kit of a RTTL, so very much appriciate your pictures and how you got plans etc.
Richard
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Great looking model..good work..
ps rather than find a smaller setting on your camera downlaod a program such as PIXresizer and resize using that, you will get less jagged edges in the curves... :)
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Looking good .
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Some of the most recent pictures, cabin rails, windows, some deck fittings etc. Motor layout changed. Just waiting for better weather to give her further sea trials.
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Looking good Simon.
See you got the damage done by that idiot fixed.
The pictures are great and will certainly help me in the one I am building. Regarding the e-mail I sent you. I am confused on the side rubbing strips so will contact you the usual way soon.
Pete
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Nice big model Simon.Why not IC power?My RTTL is only for show so I can't talk,but that'd go well with a lawnmower engine!
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I still might have to run her on ic if i cant get the motors/volts/props sorted out. She is a twin screw and i am unaware of a commercially available gearbox. I tride a single screw on ic in a smaller model and could get over torque listing, so put the electrics back in.
A nice 4 stoke, electric start, with reverese and a gearbox would be ideal but never heard of one? Perhaps i will try a post?
Regards
Simon
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Try A Morris Mini Motor and Gearbox..
Roy
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Whats that then? I assume you dont mean a Morris Minor, its not that big?
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Sorry Simon I was only joking..
Roy
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A four stroke I C might be problamatic before you start thinking of a gearbox I would have thought? Unless you could go down the local tech and get one of the apprentices to make you a 1/12 scale pair of sea griffins? Give him/her thirty bob for their trouble?
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If only it was that simple. I am happy to pay money to have items engineered to make it as scale, useable as possible.
Do you think i can find anybody that is interested in offering/building a 1 off R & D on a gearbox etc?
I think this model will take years to get right. Still there are worse things thatwe could do with our time.
Regards
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Seriously Simon. It might be worthwhile if you have the money. Get a plug made, get the mould, and get ally blocks made. Incorporate water jackets and go from there. It's quite an engineering project, but people bulid working model steam locos from the tracks up , so getting the pots milled and the cranks, cams con rods etc manufactured might be possible if you know of a small (one man band?) workshop. Possible not even have to start from scratch on some of it, instead canibalise an aero four stroke? I've no idea what the maxiumum cylinder count is now made on those, but I did know that a V4 was made years ago (punishingly expensive!) but the scope is there? Gearbox? Is it possible to utilise something from maybe heavy duty drilling gear? My knowledge is negligable when it comes to this sort of thing, I'm just throwing ideas around.
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I seem to remember my old nitrated diesel engine in my Aerokits Sea Commander used to start backwards and run quite happily;is it not possible to obtain 2 large IC motors which will do this (any 2-stroke?) which have reliable starting and recoil to make life easier?I agree re. torque reaction, a problem which hampered the real boats and was improved by the addition of trim wedges aft.It was originally so bad they used to pound on one side only in a chop....
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hi simon if it were my boat id go for a strimmer motor yep 2 stroke say 30 cc or so maybe 26 would do.,if i had the money though a zenoah 260 gpum petrol marine motor would be my ideal choice .and that thing would fly trust me 35 mph would not be far off the mark lol.on ebay you can get zens for 130 quid new. strimmer motors are a bit cheaper lol arround £70 for the whole strimmer from B&Q lol.lovely boat by the way.have a good look at the links i sent you and im sure that guy will help you out with his specs !!.
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SIMON,
You could always turn up three pullies on a lathe and then use a rubber O ring as a drive belt, believe it or not it works quite well and doing it this way keeps your C of G down low...
Roy
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ive seen a guy use a 40 cc pocket bike engine in a deep v boat and he used a gear box to run two props bothe counter rotating(one one way one other lol).it worked well not sure if he built the gearbox himself or bought it. but i bet they are available somewhere!!http://H:\Documents and Settings\martin\My Documents\My Videos\delinport.htm i think this is the link to his boat and his build take a look .
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Just back from Beale Park.
A big thank you to all the new friends i have made and thanks for all your advise.
After sea trials, new motors, new props and then new esc i think i have cracked the power concerns.
Special thanks to Jim Casey, JJC your electrics advise was great.
Some pictures on the water from a new friend Steve.
;D ;D ;D ;D ;D ;D ;D ;D ;D ;D ;D ;D ;D ;D ;D
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I saw her today on the water, superb!!
Bob
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Cracking! Well done.
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It looks superb there on the water, great going mate.....
Roy
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Simon,
Good to see you again over the weekend, sorry we didn't get more chance to chat, The pictures look fantastic. I'II be back on you're bits within a couple of days, talk to you soon.
Regards,
Martin.
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Few more, think she planes very well.
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she looks great Simon what motors did you put in her this time?she certainly seems to be moving pretty much on the plane.well done mate when you gonna get a video we can all see of her in action?.
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Motors: Graupner 820 BB Turbo, water cooled (Model Shop)
Props: Brass 3 blade 54mm medium (Prop Shop)
ESC: Electronize x2
Mixer: JJC Electronics
Sound: JJC Electronics (Vosper MTB)
Fittings: Macs Mouldings
To come: On board video telemetry, aerials, radar, towing winch, smoke generator, switched searchlite, running lights.
Thanks
:-*
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Well 2757 is 90% complete and she had her 2nd proper outing on Thursday.She has not had her bottome wet since Beale Park last year so it was off to the lake with in trepidation.
Unfortunately did not manage to get the smoke unit working as well.
All seemed OK, but your posts to the video will no doubt tell me.
Hopefully will have the batteries recharged for Mayhemers weekend, they don't last long.
Any advise on increasing playing time greatfully appreciated.
http://www.youtube.com/watch?v=fCFeZUivJMc (http://www.youtube.com/watch?v=fCFeZUivJMc)
http://www.youtube.com/watch?v=oMwJ1y2mob0 (http://www.youtube.com/watch?v=oMwJ1y2mob0)
Regards
Simon
;) ;D
http://www.youtube.com/watch?v=oMwJ1y2mob0 (http://www.youtube.com/watch?v=oMwJ1y2mob0)
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OOOh - I feel the "light side" is drawing me in :o :o :o
Nice boat Simon - quick, get that camera on the Makara before it's too late ;D ;D
Danny
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Very impressive model Simon.
Though you might want to put your Union Jack up the right way instead of upside down ;D
Richard ;)
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looks and sounds great simon,what battery packs are you using? maybe you could add a few more packs and run in parallel to add to the runtime?.either that or stick a strimmer motor in it then you can play all day ;D.a bit more relaxing than the makara i bet though,stunning boat you have there im gonna have to build me a bigger pt boat and put a petrol motor in it,the small one i built for my son is going great still with the old 540 car motor in it.
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Very impressive model Simon.
Though you might want to put your Union Jack up the right way instead of upside down ;D
Richard ;)
Pehaps he was in a bit of distress (the meaning for when flying the flag inverted)
stress /distress similar both a worry and with a model out on open water then there is always the worry stress etc....
Great model fantastic video footage
Well done
Richard,
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A couple of stills of her on the water.
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Nice build, looks great on the water
Richard,
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For Sale
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she realy looks the biz.
question, can you give me the low down on what gear you usewd for the video?
ta
colin
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Hi Colin,
Mini colour camera with microphone from Maplins, £29.99.
Ebay 2.4g transmitter and receiver, about £80 quid from memory but also now available in Maplins
Ebay MP4 video player recorder, about 60 quid from memory.
Regards
Simon
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cheers, but being totaly electronicaly challenged, how does it work.
you transmit to the MP3 player then play when you get home on to PC?
planing on geting the Delta sub some time soon(?) and would like to fit a video system to it.
ta
colin
by the way, did i mention, beut of a model
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Cheers Colin
Small video camera with 9v battery pluged into 2.4g transmitter, again 1 9v battery
On shore a 2.4 receiver plugged into a MP4 player, like an ipod but for video with a small sceen, 2 gig card a press record. When you get home plug into computer and copy files, as you do with a normal stills camera.
From memory a signal cannot be transmitted through water, not alot of good with a sub, what i have seen is a lead running from the sub attached to a floating arial on the surface and then back to the base station
There was a guy with a sub on Super models that had three cameras working like that?
Regards
Simon
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thanks again. there are a few threafds i have read on how to do it. but they were a while ago and now cant find them.
i will work it out when i come to do it. even if it comes down to storing onboard and down loading back at home.
thanks
colin
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Hi folks,
how I love to see photos of RAF craft. Having served on them I suppose I have an affinity for them. The 1:12th scale model looks superb on the water and if her builder would allow me to offer a couple of comments. A common mistake is the sick bay entrance doors on the aft side of the superstructure. Although double, the starboard door was narrower than the port side one (approx half the width). The design being that for normal duty only the narrow door would be used but when moving a stretcher case below both could be opened giving unrestricted access and allowing the metal feet on the stretcher to slide down the brass channels which were set into the top of the companionway handrail. Other common faults are the spacing of the windows both in the superstructure and the engine room coach roof, and the side profile of the actual superstructure which tapered down both fore and aft from the open flying bridge, but, in lots of models this is flat. I am attaching some pics which should clarify these points.
Keep up the good work.
Donald Smith
RAF MARINE CRAFT HISTORIAN
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Hello, I have been looking at building the same RTTl in 1/12 scale, I have a smaller set of plans which I have considered enlarging or drawing out direct onto the ply.
Could you supply the company that cut ply formers.
Thank you
Terry Gregory
OMBC Secretary
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WOW! that is some post resurrection!
Anyway getting your frames cut or a supplier of said parts? Its a little difficult to understand which you actually meant.
There are several ways to get them lasercut - I would do it for you if I resided in the UK, however. you need to have the frames scanned and to the correct scale - with a ruler included on the scan helps along with a note as to the overall scale. Its then just a question of importing your drawing, a jpg or pdf will work, tracing your image to the correct scale in a drawing program then exporting this to a laser to cut them out.
There is a retailer in Scotland that will do this for you but the name escapes me. I'm sure others will be able to give various names that will do it for you (at a cost) I have no idea of who would actually have them on the shelf so to speak. Otherwise scale them up on a photocopier, glue the paper to plywood and cut them out on a bandsaw and fretsaw/vibrosaw.
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SLEC UK do CAD service and cutting service...... not used them for either but they are one of the best for modeling timbers and their service so far has been A+. May be worth giving them a call and see what they can do for you.
http://www.slecuk.com/ (http://www.slecuk.com/)
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Steve Tranter model boat bits can also laser cut for you as well
Dave