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Other Velocity folks have compared Catto props with $12k CS units. CS prop beats Catto on takeoff, but Catto cruises faster. No way is an IVO going to out perform the CS units. I would guess you'd lose a lot of cruise compared to a Catto and not gain enough takeoff performance to justify the expense and tension of always wondering how those blades are doing.
My .02 ... Jim S.
Bryan wrote:
The major problem with the IVO and Lyc engine combo is the heavy
power pulses. It uses separate blades clamped between plates and
the heavy low frequency pulses WILL cause the blades to become
loose. (IVO will no longer sell for installation on any four
cylinder aircraft engine)
Use of the IVO with the rotary should not pose a problem as the
power pulses overlap and at a much higher frequency.
Tracy used an IVO and as far as I know, the only reason he stopped
using it was due to the performance. According to Tracy the IVO
climbs like mad but does not perform well over 150 mph.
Bryan
Does anyone have any experience or opinions using an IVO
Magnum Inflight Adjustable prop with a rotary? I am
considering the IVO for use with my Velocity / Renesis and
would appreciate any coments.
Thanks,
Joe
Joe, don't know how the IVO prop is with the rotary engine,
but it definitely is not recommended for a Velocity (or any
pusher) with a Lyc. engine. I suspect that the wing
turbulence is too much for the IVO prop. A Velocity crashed
and lost the whole family a while back using the IVO prop if I
correctly remember. My 2 cents.
Wendell
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