Howdy Everyone,
I recently came back to NZ from the States with a 80x36 Prince Prop.
Like Steve I had been flying with a Catto which has incredible take off capabilities, but terrible cruise 69 knots GS.
I have one word word to say about this prop AWESOME!
I chucked it on and my static was 5430 but I could not hold the brakes on, but will report back with an exact static.
Once I released the brakes the initial thrust was phenomenal.
I have not done an actual pull test yet but is was very impressive with the airplane literally jumping off the ground equal to or a wee bit better than the Catto.
The most important result was I picked up 10 knots on my ground speed to 79 knots GS.
My goal is to go 90 knots GS and I think with a bit of increased pitch (possibly 40) and a couple of other clean ups on the airframe I will be knocking on that.
Equally important was the problems I was having getting the airplane on the step and out of the low tail syndrome has been eliminated.
Also the elevator and horizontal stabiliser are now parallel.
I will report more once I get additional flight data. There has been quite a bit of discussion as to what prop is best and at this stage I am very impressed with the Prince.