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Problem with aeromatic propellers

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Aviator168

Well-Known Member
Joined
Sep 21, 2012
Messages
2,288
Location
Brookville, NY. USA
Aeromatic propellers work by using the centrifugal force to adjust the pitch angle. When the aircraft is moving forward, the counter weight is trying to catch the rotating plane that constantly moving forward. This allows the propeller to maintain a constant AoA with the air regardless the how fast/slow the airplane is moving IF and ONLY IF the aircraft is flying in STEADY AIR. When flying into a head wind, the plane move slower RELATIVE to a point in space, the aeromatic propeller will lower its pitch because its rotating plane is not moving as fast in terms of the displacement of its mass but at the same time, it is moving very fast in relation to the air; this leads to a lower AoA and a lower efficiency. The opposite is true with a tail wind. It causes the aeromatic to think that the aircraft is moving much faster (increase pitch) but in fact it is not (relation to air). What do you guys think?
 
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