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50 hp at 50 rps to a 50 inch prop?

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Niels

Well-Known Member
Joined
Aug 15, 2019
Messages
601
Some relatives were discussing aircraft designs and the AR-5 cropped up.
It flew originally 175 mph with a Rotax 532 and a 50*70 prop.
Later it went faster with a 582.
Is it known what gearbox reduction and prop was used?
Son asked how my Junkers and inverted UHC single would look on this extreme egotrip plane?
 
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