REBEL prop vs. VIPER prop - Moderated Discussion Areas

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Author Topic:   REBEL prop vs. VIPER prop

seahorse posted 01-26-2006 03:50 AM ET (US)
A while back there were discussions on the efficiency of different props when running a cruise rpms vs. running at WOT.
The following is a comparison on a REBEL and a VIPER 17"

REBEL 17" 150hp Ranger 20' bay boat
RPM MPH GPH MPG RANGE
500 2.4 0.18 13.4 904
1000 4.7 0.47 10.0 677
1500 6.8 1.85 3.7 250
2000 8.0 3.18 2.5 169
2500 16.5 3.92 4.2 285
3000 24.1 5.00 4.8 325
3500 29.7 6.50 4.6 309
4000 34.9 8.73 4.0 270
4500 39.1 11.34 3.4 233
5000 42.4 12.43 3.4 231
5500 46.5 15.04 3.1 209
5625 47.5 15.96 3.0 54
VIPER 17" 150hp Ranger 20' Bay
RPM MPH GPH MPG RANGE
500 2.3 0.18 12.8 863
1000 4.5 0.55 8.3 562
1500 6.4 1.60 4.0 271
2000 7.4 2.73 2.7 184
2500 8.8 5.39 1.6 111
3000 19.7 5.58 3.5 238
3500 26.4 6.93 3.8 257
4000 31.9 8.36 3.8 258
4500 36.2 10.50 3.4 233
5000 40.7 13.84 2.9 198
5500 44.9 17.00 2.6 178
5925 47.6 19.02 2.5 45

nytugcapt posted 01-26-2006 11:43 AM ET (US)
My 200ho e tec has the Viper. I have already talked to the dealer about taking it back for the Rebel.
Teak Oil posted 01-26-2006 06:18 PM ET (US)
3-4 mph more at cruise is big, the Rebel seems to perform like the Viper would if it was a 19" prop. Does it have more cup?
Peter posted 01-26-2006 06:53 PM ET (US)
3/4 inch greater diameter and different blade shape equals more blade surface area to lift boat.

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Author	Topic: REBEL prop vs. VIPER prop
seahorse	posted 01-26-2006 03:50 AM ET (US) A while back there were discussions on the efficiency of different props when running a cruise rpms vs. running at WOT. The following is a comparison on a REBEL and a VIPER 17" REBEL 17" 150hp Ranger 20' bay boat RPM MPH GPH MPG RANGE 500 2.4 0.18 13.4 904 1000 4.7 0.47 10.0 677 1500 6.8 1.85 3.7 250 2000 8.0 3.18 2.5 169 2500 16.5 3.92 4.2 285 3000 24.1 5.00 4.8 325 3500 29.7 6.50 4.6 309 4000 34.9 8.73 4.0 270 4500 39.1 11.34 3.4 233 5000 42.4 12.43 3.4 231 5500 46.5 15.04 3.1 209 5625 47.5 15.96 3.0 54 VIPER 17" 150hp Ranger 20' Bay RPM MPH GPH MPG RANGE 500 2.3 0.18 12.8 863 1000 4.5 0.55 8.3 562 1500 6.4 1.60 4.0 271 2000 7.4 2.73 2.7 184 2500 8.8 5.39 1.6 111 3000 19.7 5.58 3.5 238 3500 26.4 6.93 3.8 257 4000 31.9 8.36 3.8 258 4500 36.2 10.50 3.4 233 5000 40.7 13.84 2.9 198 5500 44.9 17.00 2.6 178 5925 47.6 19.02 2.5 45
nytugcapt	posted 01-26-2006 11:43 AM ET (US) My 200ho e tec has the Viper. I have already talked to the dealer about taking it back for the Rebel.
Teak Oil	posted 01-26-2006 06:18 PM ET (US) 3-4 mph more at cruise is big, the Rebel seems to perform like the Viper would if it was a 19" prop. Does it have more cup?
Peter	posted 01-26-2006 06:53 PM ET (US) 3/4 inch greater diameter and different blade shape equals more blade surface area to lift boat.