Rick of Austin
Well Known Member
Thats what I am seeing as soon as I add full power on the takeoff roll. Its a 160hp RV-9a, recently I went from a climb prop to this very beautiful 72x72 composite prop. I asked for a cruise prop and thats what I have. The cruise is very quiet, super smooth and efficient. It will max at 2675rpm at WOT @ about 3,500. But as you can imagine my takeoff performance is marginal.
My strip is 2,900 feet of grass slightly sloped against my normal takeoff direction.
I used to let it fly itself off then accelerate to maybe 100+ for cooling and to let it spin up to higher hp. Using that technique now makes for a very flat climb out, uncomfortably so, especially for the neighbors in the house off the departure end
Would it be better to rotate to the best climb speed (maybe 75) and hold it there for the first couple hundred feet then flatten out? It just doest feel right to do that with only about 2100 rpm though
Thanks Guys
My strip is 2,900 feet of grass slightly sloped against my normal takeoff direction.
I used to let it fly itself off then accelerate to maybe 100+ for cooling and to let it spin up to higher hp. Using that technique now makes for a very flat climb out, uncomfortably so, especially for the neighbors in the house off the departure end
Would it be better to rotate to the best climb speed (maybe 75) and hold it there for the first couple hundred feet then flatten out? It just doest feel right to do that with only about 2100 rpm though
Thanks Guys