I understand.
I think i will just have to experiment with it i suppose. To start off i will run without and then add one or two and toy with their placement.
As i say this is more fun outright speed and a bit of fun. I actually quite like the idea of toying with a hydrofoil by running opposite turn fins and seeing what it will do.
So last night the first of a few packages arrived containing the rear strut, flexible shaft and rudder assembly. Pictures to follow.
The rudder i have purchased is only 75mm length, so i am looking at running it so the servo linkage is sitting just slightly higher than the max possible prop i think i will run. so it will sit quite deep, i can always trim it down or move it up if required.
The strut isn't quite long enough for what i need becasue of the rear tunnel i have constructed, so i will be looking to adapt this slightly. I may be lucky by just enlarging the hole.
Currently the setup means the prop centre line is directly in line with the bottom plane of the hull. I think i need to get it ever soo slightly lower otherwise my prop will be running without water.
Are there any rough dimensions to follow for prop centre line under hull?
My next area of concern is the propshaft where it will join the motor. I am going to have to order a new coupler which is longer, as there is just too much flexi-shaft sticking out which i don't think will work very well.
What do people use to lubricate these teflon lined flexi-shafts? I guess they will burn out eventually.
I also am going to make a small adjustable bulkhead plate which holds the internal end of the brass flexi tube. Next month motor & esc will be on order so i can do some trials. So i better get on with finishing my sponson covers.