I have posted a few pics of our first day on the water with the 255 Tomcat in our photo album. We did not have the fuel flow meters installed for the maiden voyage so there is no fuel data. We were using 14 1/2 x 15 Solas stainless proplellers with a max RPM of over 6,000. We will do some additional testing with 17 pitch propellers and post the data. Here is some preliminary test data.
Calm Seas/ light chop
Full fuel
4 passengers
135 Hp Honda 25" shafts
weight as tested #7,380
RPM's MPH
1,500 6.2
2,000 8.1
2,500 10.3
2,800 11.6
3,000 13.5
3,200 15.0
3,400 16.2
3,600 17.7
3,800 20.0
4,100 22.4
4,300 23.6
4,500 26.0
4,800 28.1
5,000 29.2
5,200 30.8
5,400 31.8
6,000 35.1
WOT 37.4