2 Blade prop

wolfy

Gold Supporter
Joined
Dec 19, 2013
Messages
766
Location
western australia
I am fascinated with trying a two blade prop on my new gyro.
Given that most of the vibration is on two blade props on a tractor with the 2 per rev pulse hitting the windscreen and buffeting the whole airframe.
Naturally we won't have that on a pusher, so is the problem less severe on a pusher?
So long as I can find a prop that can soak up 120hp with only 71" diameter, I would like to try.
From the little that I have read so far it seems the 2 per pulse is still a problem on pusher gyro's, What are your thoughts?

wolfy
 

Jean Claude

Junior Member
Joined
Jan 2, 2009
Messages
2,211
Location
Centre FRANCE
Aircraft
I piloted gliders C800, Bijave, C 310, airplanes Piper J3 , PA 28, Jodel D117, DR 220, Cessna 150, C
Total Flight Time
About 500 h (FW + ultra light)
I don't see any more vibration problems for a two-bladed propeller than for a three-bladed one when both are pushing axially. Neither for the tractor nor for the pusher.
Here La Cierva, Pitcairn
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meglin

Newbie
Joined
Feb 5, 2016
Messages
97
Location
Kharkov
No problem with the 2-blade propeller for the engine of the specified power. What are the revolutions? What is the gear ratio of the gearbox?
Best regards, Vladimir Meglinsky
My site: http://propeller.simplesite.com/
 

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meglin

Newbie
Joined
Feb 5, 2016
Messages
97
Location
Kharkov
We also make such propellers. But now we will not accept orders yet.
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