[modeleng] Re: boats

Hello Julian,
                  My father made me a couple of simple but interesting 
working boats many years ago and maybe one of these would do.
   First was a submarine.   Carved  solid wooden hull, (18 inch long) 
weighted with lead to just positive bouyancy.   Transverse drillings fore 
and aft for simple hydroplanes made from galvanised wire soldered to tin 
scraps.  Power from a rubber motor (aeroplane rubber)  linked to a simple 
bent tin prop.   This was capable of about 20m submerged range and gave me a 
lot of pleasure.
Second was a paddle steamer.    Simple solid hull cut from thick plank. 
Pair of paddle wheels soldered to galvanised wire running in wood bearings. 
The clever part, and I am not sure if this was his idea or not, was that the 
boat would paddle upstream.    A long fishing line was attached upstream to 
a bridge or end of fishing rod.    The other end of the line passed through 
a fairlead in the bow (staple) and was secured to the centre of the paddle 
wheel axle.  In action the paddles would be revolved by the water and the 
steamer would gradually wind itself upstream.

Both these models could be made rather quickly and require outside testing 
which could be an advantage.
Hope this helps
Dennis

----- Original Message ----- 
From: <julianharrison7@xxxxxxxxxxxx>
To: "models" <modeleng@xxxxxxxxxxxxx>
Sent: Wednesday, April 01, 2009 9:00 AM
Subject: [modeleng] boats


> Hi,
> I have a friend who for various reasons is struggling with his health and 
> has been told by his counseller that he needs a hobby to keep his brain 
> busy rather than it turning to finding ways of ending it all. He has 
> always been interested in boats so has decided he would like to build a 
> working model of a boat. Some years ago he built a kit of the Cuttyy Sark 
> but it is only ornamental.
>
> Has anyone got any plans for a simple boat that I can buy or have so he 
> can start building. I have suggested something very simple to start with 
> possibly as simple as a rowing boat to learn the principles. A majority of 
> the model needs to be from wood because that is his trade. Some cnc is 
> possible as I can do that for him with the necessary plans but most will 
> be by hand.
>
> Regards
>
> Julian.
> MODEL ENGINEERING DISCUSSION LIST.
>
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