prop size for 24x7 carrera
#1
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prop size for 24x7 carrera
I built a 489 stroker motor for my boat and think I need a new prop. im running a 21p rev 4 and getting 5400 rpm on a trs drive. I think there is to much prop slip and was wondering what the prop slip % should be on this boat, and what size prop I need.
#2
Offshoreonly Advertiser
Offshoreonly Advertiser
What is your speed at 5400?
Has the propeller ever been repaired or reworked?
Brett
Has the propeller ever been repaired or reworked?
Brett
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Brett Anderson / BBLADES Professional Propellers
920-295-4435 http://www.bblades.com/
[email protected]
Brett Anderson / BBLADES Professional Propellers
920-295-4435 http://www.bblades.com/
[email protected]
#4
Offshoreonly Advertiser
Offshoreonly Advertiser
If we use 1.5 as you gear ratio, your slip is negative. This is impossible since you can't actually have a negative number. This would mean the forward travel of the boat is farther in one revolution than is possible with 21 inches of pitch. Something is wrong.
Brett
Brett
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Brett Anderson / BBLADES Professional Propellers
920-295-4435 http://www.bblades.com/
[email protected]
Brett Anderson / BBLADES Professional Propellers
920-295-4435 http://www.bblades.com/
[email protected]