The following courtesy of:http://www.arographics.com/chick's.htm
Click on pictures for larger view.
In order
to install a trim tab, a section of the trailing edge of the RH
elevator was removed and provisions made to accept the trim tab
and it's piano hinge.
A trim tab was constructed of
urethane foam and glass cloth. An aluminum strip is embedded
within the trim tab, to provide a place to rivet the control horn
and hinge.
The trim tab is shown attached
to the elevator with the aluminum piano hinge. The control horn
isn't visible here, as it's located on the bottom of the trim tab
Here you see both the elevator
and rudder trim tabs installed in their respective locations. I
preferred to incorporate the tabs into the control surfaces,
rather than add them to the trailing edges.
To control the trim tabs, I
constructed a "vernier" type controller. It uses
"traveling blocks", moving along handwheel actuated SS
threaded rod, to actuate the SS "push-pull" wires, which
run in Bowden type cable housing. An engraved, black plastic
faceplate, with indicator marks, will be attached
The stock throttle levers were
replaced with some that I fabricated out of misc.
"stuff" I had on hand. The throttle knobs were turned
from Delrin rod, as was the knob on the kickstand control lever.
Other innovations on this site include a "Kickstand" for your
Challenger!
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