Tim,
I think lap times are the best indicator not speed unless you are doing
Str.Away of course. Handing in my opinion is more with front sponson
angles and strut locations. Big propellers usually give you wicked
handing problems. I like to run small propellers with a lot of pitch and
I try to run them as deep as I can for efficiency. It can take a year or
two to get a 21 rigger setup good to heat race,or just a lot of time on the
water, testing different setups. With the second box of 20 propellers this year,
I will have a lot of time on the water testing for the optimum setup. I can tell
you the goal is to be able to heat race 75 to 80 MPH. The reason I try so many
propellers is, that I do a pitch range from 3.2" to 4" and then I try different
cuts and configurations on the trailing edge. Once I get the right diameter,
then I narrow in on the right pitch. I then go for lap times,acceleration,handling,
etc. It can take a little while just like typing this information. :lol: :lol: :lol:
Thanks,
Mark Sholund
Props-4-U