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Old Feb 23, 2012, 05:23 PM
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Irvine, Calif USA
Joined Feb 1999
12,246 Posts
The flap linkages are nicely made ... no problem installing them.

I used generous amounts of epoxy mixed with microbaloons to make sure the hinges stay in place. The flap horn fell apart and had to be re-glued together.

It looks like a cool setup. I just hope one of the two flaps won't fly off in flight

I needed to cut down a hex key to get it to work in there. I used twin HS-81 MG I already had lying around. They are good, strong reliable servos, and fit perfectly.

It is a good thing that the flap linkages can be properly adjusted. Later everything will be set permanently in place with dabs of epoxy.

Flap operation video :

CMP L-39 Flaps (0 min 17 sec)

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Last edited by Herb; Mar 11, 2012 at 02:10 PM.
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