using larger props to lower slip #'s
01-25-2017 | 12:01 PM
#41
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From: indianapolis
They were where mine is at or higher but I don't have the setback the 6 has. It does not seem to run wet or bow steer at speed. Handles good for how little drive/prop I have in the water.
01-25-2017 | 04:12 PM
#42
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From: Taunton Ma
Mild Thunder has it right 2 inches under the hull is where the shaft should be especially on staggered motors, that's standard, 80% prop below the hull thrust and 20% prop above the hull lift, even to the hull, is actually -2, 67% prop below the hull thrust and 33% prop above the hull lift, with a 17 inch prop, that's a 65% increase in stern lift that the 42 lightning does need with the staggered motors and 5-blade props. For mine at 67/33 a 4-blade slips 23.39 and a 5-blade slips 36.64, because the 5-blade has 25% more lift than the 4-blade, at 80/20 the 4-blade slips at 18.71% and the 5-blade slips at 11.45%, currently I run at 86/14, a 4-blade will blow out and not stay on plane and the 5-blade slips at 8.97%, that is what I look for when fitting a prop when one less prop won't stay on plane and blows out.
01-25-2017 | 06:59 PM
#45
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Joined: Jul 2004
Posts: 11,332
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From: chicago
Mine was rigged at fountain that way. I would like to rerig and try higher someday, but not sure its worth messing with. It handles on rails at top speed, and is getting dam close to 100mph club with 468s with no steps . Full tanks of fuel and rough water, it can be a chore to get on plane . Empty tanks and calm water, it planes pretty decent
