KitLog pro

Powered By Kitlog Pro v2.0

The Story of "HOPE"
' style=
Date:  4-15-2011
Number of Hours:  12.00
Manual Reference:  
Brief Description:  Flaperon Trim Tab Installed

I got another Ray-Allen T2-7A Servo and built a short 4cm push rod from my boyhood STOKYS kit (http://www.stokys.ch/). I used two extra flaperon rear ribs (75A1-3 L + R) and fitted essentially the same parts as for the elevator trim tab in the finished outboard flaperon on the pilot side. The only variation was to cut the elevator trim tab channel open, length-wise, at both ends to fit the flanges on the outside of the flaperon rear ribs. That was necessary to dissipate the extra height because flaperon pitch is slightly less than elevator pitch. Other than that, I used the same parts as for the elevator trim tab including the trim tab itself, the hinge and the horn. Even the cut-out for the push rod was essentially the same. In hind sight, I probably should have shortened the trim tab somewhat e.g. to fit between the existing flaperon rear ribs and even that would probably have given me more authority than I ever need (pic 2). It took some courage to cut an opening in the outboard flaperon spar (75A1-5) but I needed the extra depth to fit the trim motor/push rod but the cover plate will give the needed strength back. Being already forward of the flaperon spar will also simplify the routing of the wires along the outboard flaperon wing angel, flaperon arm (75W3-5) into the main wing and back to the control stick.. The good news is that I have now enough wires to connect to the 4-way trim control switch on my fancy control stick (pic3). I will see how this modification will perform in flight. Until then I am looking for opinions from the believers in aileron trim just how much trim tab would have been the right amount to compensate for lob-sidedness when flying alone and/or with empty wing tank(s) on one side.
' style=

STOKYS

STOKYS

' style=

Flaperon drilled open again

Flaperon drilled open again

' style=

Control stick wired

Control stick wired

' style=










Copyright © 2001-2024 Matronics. All Rights Reserved.