Thought i'd update the thread.
I had to bring my boat back to warsash on one engine from Southampton (where Stuart kindly looked after my boat
for a few days while its been poorly - gearbox
Bringing it back on one engine was fun slowly making progress on one engine - 10 knots max before the engine start cavitating and over revving - when I realised that the engine I had off was still dragging in the water
... so I brought it up out of the water to the top of the tilt, and picked up speed....
so I played around, got the boat on the plane, and managed to get 25 knots out of it! better than my previous record of 19 on single engine
Also, I noticed is that at 25 knots it used 35 l/hr of petrol, so will have to check what the consumption is when I get the other engine sorted... I have a feeling it will be more..... ill get back with the results