Some new prop data

walleyehed

Admiral
Joined
Jun 29, 2003
Messages
6,767
I just ran 4 props on a Lund 1800 fisherman with a 60 degree 115 looper, and I thought I would share some figures...
2 of these props are MWC alum., 1 is the original 176214, 14X17.
We ran 2 designs from MWC and I can't list the P/N's as I have not been given permission to so, but the reason I give this info will show in the end results.
176214-5650 @ 37.8mph GPS
MWC#1-13.25X17-5600 @ 37.5mph GPS
MWC#2-13.25X17-5250 @ 37.5mph GPS

176214-3000rpm-11.5mph
4000rpm-24.9mph
4500rpm-28.7mph
5000rpm-33.2mph
5500rpm-36.3mph
5650rpm-37.8mph

MWC#1-3000rpm-12.3mph
3500rpm-22.3mph
4000rpm-28.2mph
4500rpm-31.5mph
5000rpm-34.5mph
5600rpm-37.5mph

MWC#2-3000rpm-14.0mph
4000rpm-29.6mph
4500rpm-35.4mph
5000rpm-37.0mph
5275rpm-37.5mph

Then.....just to throw a curve ball, I stuck a Turbo1( in a 15P!!!!!) on.
As you can see with blade design comes changes that may affect mid-range drastically, yet have near the same top-end.

Turbo1-3000rpm-15.1mph
4000rpm-31.2mph
4500rpm-36.8mph
5000rpm-39.4mph
5500rpm-41.6mph
5700rpm-42.9mph
Remember! this is a 15 pitch against 17 pitch aluminums...
This engine is mounted all the way down and has no set-back.
This proves once again, dropping pitch doesn't always fix the problem of rpm, as the 15P put the 115 at a happier 5700, yet considerably faster, not to mention the vast improvement in mid-range.
I have 2 more rigs to test these MWC props on, then I can give P/N's.
 

Esox

Petty Officer 1st Class
Joined
Sep 14, 2006
Messages
288
Re: Some new prop data

Very interesting. Thanks for sharing Kenny!
 

walleyehed

Admiral
Joined
Jun 29, 2003
Messages
6,767
Re: Some new prop data

Should have data on 2 other rigs by next week...I think they'll let me post P/N's then...I'm impressed with MWC#2 as it showed some extremely good cruise numbers for those looking for max economy at that range.
That prop is the fastest from 0-20 by almost 1 full second and about 1/2 a sec faster to 30. Real efficient slip-wise compared to most.
 

Ron G

Commander
Joined
Apr 28, 2005
Messages
2,905
Re: Some new prop data

Good info Kenny!!what other hulls you going to run?
 
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