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Thread: Contra Rotating Propeller Drive for f3a 2m Pattern Planes
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Old 10-06-2016 | 11:08 AM
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Henning
 
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From: Oslo, NORWAY
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Hi,


I changed the needle back support bearing to two high quality 6x10x3 mm ball bearings + a spacer to fill the gap in the plastic case. The spacer I used is a centre ring from an APC propeller. The spacer is 9.5D x2.5 mm and with one round of plastic tape it fits perfectly. The fibre glass plate I am using is 2 mm so this adds up to a perfect fit. After installation i have zero play in the back support.


Test flight hopefully tomorrow.




Br,
Henning
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