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Old 26 April 2009, 04:12   #11
Country: UK - England
Boat name: Angel-B
Make: Ex Y boat
Length: 3m +
Engine: Suzuki 9.9HP
Join Date: Apr 2007
Posts: 585
I guess a lot will depend upon the SIB weight / outboard power and weight / crew location and weight, but I have found that the middle hole on my outboard gives me the best performance.

We (me and my Father in Law) spent an afternoon blasting around a lake trying different settings, and found that

  1. Trimmed further in than the middle hole the bow ploughed and the boat struggled to get up on the plane.
  2. Trimmed further out the bow headed for the sky and stayed there, despite my 12 stone sitting on the bow dodger!
I suspect you have a much better power to weight ratio than I do, so trimmed in may work better for you.

I can recommend a session playing with different settings as time well spent - ideally you want somewhere sheltered (to rule out effects of waves, tides and wind) and quiet (to rule out effects of being mown down by a Sunseeker whilst you are hanging over the transom trying desperately not to drop the trim stop pin)



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