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Message
Rusty,
I
agree that with the pusher, the air is blocked from the center portion of the
prop, so the IVO really doesn't hinder top end speed. It may on the RV.
The
IVO Magnum comes with 2 different ranges on the pitch. I have the high
pitch blades which is what they recommend for my plane. I believe
that the pitch range goes from something like 40-45" on the low end, up to
something like 105" on the high end of the pitch range.
Steve
I started with the ground adjustable, but
plan to add the in-flight adjustable after getting some time in the plane, and
making sure that I don't have any issues with the prop. I think that the
blade crack problem they had in the past were all with Lycomings, and due to
the strong pulses. I shouldn't have these issues with the
rotary.
Hi Steve,
Thanks for the
comments. As I mentioned, I'm not afraid to run an IVO, as I agree that the
cracking will have no effect on us. The biggest hang-up I had with the
IVO was this mysterious high speed problem that many people have. Tracy
said his climbed like crazy, but seemed to have a bunch of drag at higher
speeds. Dave Atkins reshaped the hub area some, but I could never get a
description of what he did. Pushers seemed to be less affected, perhaps
because the fuselage blocks more of the drag area of the hub??? I'll
call IVO today, and see what they would recommend.
Cheers,
Rusty (2 or 3 blade, long
or short, just don't
know)
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