Model Boat Mayhem
The Shipyard ( Dry Dock ): Builds & Questions => Pleasure boats, Sports, Race, Power and Leisure Boats: => Topic started by: boatmadman on April 22, 2006, 11:38:23 pm
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My latest project nears completion. Its nearly 45" long, and I used plans from Marine Modelling magazine.
Ian
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Thats looking very nice, love all the timber work. ron h
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After further work, I just need to learn how to do leather upholstery now!
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Wow, that's beautiful!
Tell us more - what motors are in her? Do those bilges work? Have you used a wood stain or just a varnish? The pale wood inlay on the top looks gorgeous. Well done, you must be really proud.
Julian.
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The motors arent in yet, they will be MFA 850's. The finish is nothing more than 7 coats of intenational paints yacht varnish and LOTS of wet/dry rubbing down in between.
The wood inlay is Lime strip laid on edge between the Mahogony planks. All the sides and tops are Mahogony, the bottom is Beech ply.
The only bought items are the props and rudders.
Ian
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Hi Ian,
You have done a great job there, it looks fantastic. What did you use to make the windscreen surround ?
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Hi,
The windscreen surround is made from thin brass sheet. I cut the outer part in two peices, port and starboard. Then cut inner parts to the same external size, but slightly larger aperture so as to give a frame for the clear sheet to sit in.
I then soldered the whole lot together carefully bent the curves into it by hand, soldered pegs on the bottom to sit in holes drilled in the deck ( I HATED drilling those!), glued in the clear sheet with superglue and stuck it on the boat!
Easy? certainly not, lol took me ages!
Ian
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I finally got the upholstery done and its finished! Woo Hoo!
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That is beautiful bet you are really proud and rightly so
Colin H
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Very nice indeed ,how does she(it) handle like on the water.
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Very nice, built for the Itailian lakes this summer? Is it plan or kit built? I fancy a go at one, hope it turns out half as good...How did you make the screen?
Questions questions..
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Hi, thanks for the comments. It was plan built and came out at 41 inches long.
If you look at the topic - scratch build Riva - in the 'your builds' section of the forum, there are some photos from earlier in the build and a little info on making the screen. - http://www.modelboatmayhem.co.uk/forum/index.php?topic=213.0 (http://www.modelboatmayhem.co.uk/forum/index.php?topic=213.0)
Ian
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Very nice job indeed.....what have you opted for running gear?
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Hi,
She is built for two 850 type motors, brackets shafts etc in place, but havent got the motors etc in yet - no rush - the weathwer is lousy!
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Breath-taking!
Let's see some nice shots of her on the water with the sun on her (we might have to wait a while for these!)
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Very nice
Bob
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Hi,
She is built for two 850 type motors, brackets shafts etc in place, but havent got the motors etc in yet - no rush - the weathwer is lousy!
[/quoteThat is one fantastic boat you have built mate well done,i think she should look good on the water too .At 40 " id have gone for a petrol motor ,im building a deep v for a strimmer motor28 cc as we speak.It would need water cooling in your boat though but it would certainly make her motor!!.Well done on a great job shes beutifull.
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Thanks for the kind comments martno1fan
Ian
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Mart will do just fine mate no worries praise is well deserved mate.
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Lovely boat, a credit to your time and effort.
I take it the rest of the household haven't noticed the similarity of your newly finished upholstory and the chair in the background (photo 3), nor the strategically placed cushions :-[ - You don't get away with anything on Mayhem ;D
Danny
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Stunning, Just stunning!
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Nice one Danny - no they hadnt noticed - its kinda difficult making sure the cushions stay in the right place! ;)
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I don't know - you kids ;D
You cut it out of the BACK and then blame the dog/cat ;)
D
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I don't know - you kids ;D
You cut it out of the BACK and then blame the dog/cat ;)
D
better still blame it on the kids and say well waste not want not ;D ;D ;D!!
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isnt that one reason for the existence of kids?
Ian
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Absolutely gorgeous.
This is the kind of quality workmanship that I strive for.
Excellent work. And thanks for the photos.
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Hello Ian,
The finish on the Riva is stunning.
Clive :)
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hi ian shes stunning id like to have a go at one for a petrol motor(water cooled),do you know where i can get plans from?.what wood did you build her from by the way? i was thinking of using plywood with a nice veneer .any input on this would be great thanks.
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Nni i i i i i i iccee!
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Mart,
The plans came out of a marine modelling magazine, I can try and find mine if you like, and send them to you.
She is built in mayhogany, with lime strips on the beck. The internal frames atc are just a redwood from b&q.
Mine is single diag 2mm planked, and it was really hard, I would suggest you build in a thin ply and veneer with a 1mm or so plank.
There is a desrciption of how I made the screen further back in the thread.
If you have any q's, ask away.
Ian
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hi ian id love the plans if you could find them,i was a boat builder for a few years so the planking isnt a problem but sourcing the wood might be.i have lots of birch hardwood here but im not sure id be able to cut it so thin on my table saw ??? which is a pitty.if you find those plans pm me as id love to have them.
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Ok, I will hunt them down.
I got my timber here: http://www.model-dockyard.com/material/timber1.asp
Ian
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If you are still in search of the plans, Ive got the 'freebie' ones out of the magazine and you are quite welcome to them, if you send me a PM with your address.
I have seen mahogany strips 4mm x 0.5 mm from JoTika Ltd.
aye
john e
bluebird
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Found them John, thanks
Ian
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My mate Bradders is a GREAT Riva fan, how did you get the silver effect on the windscreen frame?
Martin
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martin,
Its a trade secret - I could tell you but---- I would have to kill you!!!
Its an optical illusion! The screen frame is actually brass, its just the lighting makes it look silver.
Ian
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Clever! ;)
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a real one
http://www.newson.co.uk/boat/abbate-villa-deste-1966/
also
http://www.newson.co.uk/boat/hydroplane-building/
there are some other nice builds repairs and this sad one
http://www.newson.co.uk/boat/mgb-60/
all at
http://www.newson.co.uk/
Peter
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Hi Ian, that model looks superb, the finish is terrific, well done sir.
Bradders
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Martin
have a look here for chrome paint http://www.kke.be/chromirox.html (http://www.kke.be/chromirox.html)
I recieved an email from their UK distributors and am pleased to find they are in Derby . I await a reply giving me prices quantities and availability so will update you when I recieve it .
Shane
I intend ordering some anyway to sort out my rubbish fittings on the triple . So a thread on it might well be forthcoming if its any good !
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Hello, super build quality, do you have a photograph of the motor layout. Have you used just one speed controller for the twin 850 motors. Mick
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Mick,
I havent installed the motors yet, I intend to use just one esc for them. I will take pics when I get it done.
Ian
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Nni i i i i i i iccee!
Well done Ian. I can appreciate the time, effort and swearing that has gone into your build.I am still finishing a huntsman
wood kit and I have been at it 6 months.
Supersonic
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Thanks Ian, look forward to photo's. Have recently started a Chris Craft Triple from a plan. I am following 'Shane's' build, however, addition advice is always useful. I may install twin motors although the plan is for one motor. Very early in the build so I have time to change my mind. I have some experience in model boat building. Thanks again...Mick.
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Any questions just ask away, always willing to help.
If you look through the slo moshun build log by orby, you will find quite a lot of tips etc for building and finishing in wood as well.
Ian
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Ian, followed your advice ref Slo Moshun,planking is not as easy as it looks.
My Chris Craft Triple build is 47" length, 12" beam.
As starting point for the motor setup how does twin MFA 850s, 12" shafts, Electronize ESC, I think 43R, not sure of prop and batteries. I know I have only just started building this model, however I would like to dry fit these components before I box everything in. Mick.
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Mick,
I bought twin 850's for the riva, and intend to use an electronize esc when i measure the load on the motors. I have no idea how it will perform though!
Length of prop shaft depends entirely on where the motors will sit.
Cant remember the size of my props, I will measure them next time in the garage.
Ian
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Thanks for the reply Ian, I am totally confused by the batteries needed, volts, amps, etc,. I have used the large sealed 12v in a Clyde Puffer I built some years ago, and I believe you can experiment with the prop size. Anyway, thanks again.
I will make a decision over the next few days about the motors, to go for one motor or two.
This boat could turn out to be heavy, I am using 6 and 4mm ply, then mahogany planks, so two motors may be a better bet.
I liked the look of your Riva 'setup', thats why I asked your advice....Mick
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My Riva is planked straight over the frames - no under layer of ply. The hull bottom is 2mm (I think) ply and is plenty strong enough.
You may be overbuilding using 4 and 6 mm - I used 6mm on a full size sailing dinghy and its plenty strong enough for that!
I would suggest liteply under the mahog planking, and then no more than 2mm thick mahog planks. At that thickness you can just get the curves you need, and still have enough thickness to allow sanding.
Batteries - sealed lead acid are heavy and bulky - think about nimh or nicad, although I understand production of nicads is stopping fairly soon. The space you will have will probably dictate the battery type. one option is to have 2 or more battery packs.
Voltage - 12v is prob best, but be carefull not to go higher than the rated voltage of the motors. An alternative may be to look for motors with a higher rating, run at 12 v . This will give you the option to increase battery voltage if needed to give the performance you want. The down side of that is that current increase rapidly with voltage and battery duration decreases. If my memory serves (and it often doesnt) the electronize unit is ok to 24v.
Ian
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Hello Ian, have been offline, 'server down' thanks for your reply.
Look forward to the photograph, motor/prop/ESC, /batteries layout.
I have posted 'Shane' as I am following his 'Triple' build as well. He is using a single motor on the 'Dumas Kit'.
What is you view on the use of double UJs.....Mick
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Mick,
I have never needed to use double uj's, if you align well enough, a single is all you need.
You can make an alignment tool using a peice of bar drilled for the motor shaft at one end, the prop shaft at the other. Mount the motor with this connected, then remove it and replace with uj.
I have always aligned by eye, been lucky so far!
Ian
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Ok Ian, just noticed something.....do you need twin rudders with twin props?...Mick
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Mick,
Well, I suppose its not essential, but I would strongly advise twin rudders, I cant think of any application where there is 2 props and one rudder - but then again, I haven't seen all boats! lol.
Twin rudders means that the prop wash acts directly on the rudder surface, thus ensuring best manouverability.
Ian
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:-\
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Think I messed up my last message...try again.
Thanks Ian, just trying to cover all possibilities...Mick