in an effort to get a boat propeller slip calculator working
i first need a theoretical speed
i looped back my ms3x PT4 out to launch in for VSS1
made PT4 my tacho out at normal speed
now set up as a V6 2 stroke this should give me 6 pulses per 1 RPM
gear ratio is 1.87 RPM to 1 prop rotation
roughly speaking i should have 12 pulses per 1 shaft rotation
24 pitch is 24 * 2,54 = 0.609 mtr
now for some reason i need 36 tooth or 35 in this case as the 1.87
something to do with 2 stroke versus 4 stroke?
double check against
http://www.mercuryracing.com/prop-slip-calculator/
MS3 1.5.0 release code
propeller slip calculator
Moderators: jsmcortina, muythaibxr
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propeller slip calculator
Last edited by MS2tester on Sun Jul 23, 2017 5:10 am, edited 1 time in total.
Re: propeller slip calculator
Cool idea. I'm going to save this one, but 3% slip? Is that even possible?
I'm assuming you're running a blender off the back, so not my area, but there's no way an outdrive could get those numbers.
I'm assuming you're running a blender off the back, so not my area, but there's no way an outdrive could get those numbers.
6.2L LS3, Procharged, MS3X V3.0
22' Donzi Classic
Not yet running...
http://www.donzi.net/forums/showthread. ... 502-to-LS3 (Disclaimer: Contains naive info )
22' Donzi Classic
Not yet running...
http://www.donzi.net/forums/showthread. ... 502-to-LS3 (Disclaimer: Contains naive info )
-
- Master MS/Extra'er
- Posts: 606
- Joined: Sat Apr 11, 2009 12:54 pm
- Location: Aalsmeer the netherlands
- Contact:
Re: propeller slip calculator
3% very unlikely just testing on the bench with a frequency modulator testing the math
8 to 10% is very good for standard props
and those high performance overhub cleavers on catamarans run close to 20% slip
also tried out the shadow dash
8 to 10% is very good for standard props
and those high performance overhub cleavers on catamarans run close to 20% slip
also tried out the shadow dash