Electric Flap Install:

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After fabricating the manual flap handle, I decided to install the electric flap option, but maintained the standard flap design.  New Glasair doesn't sell the old style flap motor anymore, so I contacted Motion Systems.  They were unwilling to even talk to me about aircraft parts, so I contacted Van's Aircraft.  They agreed to order a flap motor to the proper specifications (p/n 85151, 12v, 6000 rpm and 3" throw) to fit the GI wing.  I had to figure out the measurements needed to fabricate my own flap motor attach arms and to modify the existing flap pushrod arms. flabfabnumbers.jpg (35108 bytes)This drawing is how I figured out the flap linkage measurements.  The flap motor has a 3" travel.  To get the flaps to travel 55 deg, the pushrod has to travel 1.98".  With this information, I was able to determine that the flap motor attachment arm had to be 2.121" long and the pushrod attachment arm had to be 1.4" long.  The next photos show the motor and linkages installed.  The motor is attached to the rear spar shear web by two 1/4" bolts through a .060" aluminum plate per the instructions from Cliff Faber, Glasair Aviation technical support.  Thanks Cliff :)

flapmotorinst.jpg (31238 bytes)   flapmotorinst2.jpg (24015 bytes)

 

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