well an update, my loft and the kitchen are my work areas, the former I have been boarding out in 5.5mm ply and insulation, it gives the shed feel and insulates the roof space, any way as its raining I cannot cut the wood to cover a wall I am cladding, so I did a bit on the victory.
This is the sailboard rudder, as its about centre to the hull, forward of the main mast, to assist in turning the vessel, this rudder is being incorporated into the sailboard, in that the flat area between the keel and the bulb is used.
the following photo's are
1. The parts - outer tube, inner tube, and rudder plate (this will be drilled to allow epoxy etc to secure the lighter plasticard rudder).
Note that the outer tube (about 1/8" dia.) has a cut out about 52mm long extending to about the centre line i.e. leaving about half the tube, the inner tube
(2.38mm dia.) has a slot cut into it to allow for the rudder plate to be inserted.
2. The inner tube inside the outer tube, the brass tube selected was to be as light as possible as I want the weight to be at the lowest point.
3. The rudder plate fitted to the inner tube.
4. The whole lot assembled.
As you can guess the rudder plate will have to be tinned prior to soldering, and great care taken to ensure that solder does not transfer between the tubes, a bigger diameter tube would probably have been a better idea but this is only a trail and has to keep the weight down.
Next up will be to solder this and before I do that I will need to create the leading edge first, so that this can be soldered on at the same time to reduce the risk of the rudder plate from falling out.