OK. I am going to spill the beans.
Richard has a hot 540 installed (the sort with adjustable brush timing) with a flexidrive and a (poss Beryllium) racy prop.
It did exceed expectations, and a test in calmer water will give us a better idea of how well it goes.
The slipper is very nose-up, and to be honest, I thought this was ok considering the novelty of the design. I squarer shelf fitted at the stern, possibly in acrylic so as not to be noticeable would/might help to keep the nose down.
Although it was going very well, some more performance might be available if Richard could get rid of the obvious cavitation that`s going on. Essentially this would call for a larger and possibly surface piercing prop (which work better than normal props when a bit of cavitation is present) but might strain the 540. A speed 600 could be easily fitted I suppose and this might turn a slightly larger prop than that fitted.
HOWEVER….is all that work worth it??? It went really well considering, and was a great larf. I suggested that perhaps a bit of half-round section wood/plastic/woteva could be fitted around the `welt` of the slipper to prevent some of the spray that is causing internal wetness, but it may have been that the fairly severe weather conditions were more to blame than any shortcomings in the design.
Camera at the ready for tomorrow!!!
Ashley.
Edited By ashley needham on 28/09/2020 17:44:49