Thanks Dave;
You have the same redrive as you, which is 2.17:1. Actually mine was a RD-1A but as I ended up with the turbo, I changed the planet gear set to a six, so its now equivalent to a RD-1B.
Anyways I'm pleased to see those numbers with the deep pitch IVO. When I bought mine, the IVO was getting bad press for hitting a wall around 140 kts. But It was a very affordable way to put a variable pitch fan up front to keep me cool. The most I ever saw in level flight was about 150 kts. And that was pushing hard. I knew the deep pitch must be better, but you are the first to confirm that for me.
They used to be a real love-em or hate-em kinda prop. I'll never say they are the best, but if you can get the performance you are looking for out of them, then they are great value for the money.
I did enjoy a 300' take off and a 2400'/min climb and that was not anywhere near to the bottom end of the pitch range, so I'm hoping that I'll still have that with the new blades.
You say your's is in-flight adjustable but that you are still using take-off pitch? Do you not have the pitch motor set-up yet? Have you bought their electronic constant-speed governor?
I sure am looking forward to attending a rotary fly-in with a bunch of folks like you and have our cowls off, comparing ideas. I really don't have much interest in the big fly-ins with all the snobs and their quick-build, builder assist, Lyc powered testaments to their excess disposable income.. I'd rather drink beer with hairy chested heroes.....
Todd
C-FSTB
13Bturbo
Whatever you vividly imagine, ardently desire, sincerely believe, and enthusiastically act upon... must inevitably come to pass...