Short Wave Sportfishing wrote:
On Fri, 17 Aug 2007 12:09:22 -0400, HK wrote:

Got some preliminary performance figures on the new boat:

1000 RPM 4.3 mph .70 gph

4000 RPM 26.2 mph 6.9 gph

4500 RPM 30 mph 8.9 gph


Engine is too young for a sustained wide-open run, but I am guessing
5900 rpm, 40+ mph, and (gulp) 16+ gph.

It's not that I don't believe you - really. Those figures seem a
little suspect.

How much horsepower?

It looks like they match the specs listed on Yamaha's web site for a
Yamaha F150TXR matched to a Parker 2100SE. As to be expected the sweet
spot with the best fuel consumption is at 3500 rpm.

Performance Data
RPM MPH GPH MPG
1000 4.3 0.7 6.14
1500 5.8 1.1 5.27
2000 7.1 1.9 3.74
2500 8.4 3.0 2.80
3000 13.6 4.2 3.24
3500 20.9 5.1 4.10
4000 26.4 6.6 4.00
4500 30.3 8.8 3.44
5000 34.5 10.9 3.17
5500 38.4 14.4 2.67
6000 43.0 16.4 2.62
Seconds to Plane 3.44

http://www.yamaha-motor.com/assets/p...se-f150txr.pdf