Wing -Strake
Joint Cuffs
October 2005 -
I've had a left wing roll tendency ever since my first flight and I'm tired of
just living with it! I tried the washers in the wing to set it to a new
incidence angle, but that didn't seen to have much effect. I've read about
others having good success with a so called "Gurney Flap" or wickerbill as it is
also called. Basically it is a small piece of heat shrink tubing 1/8 inch in
diameter, glued to the bottom aft edge of the wing that is dropping in flight.
This acts as a low drag (practically imperceptible) flap that increases lift on
the wing. Most of the reports I have heard start with about 4-6 inches and cut it
back if it over-corrects the problem.
The tubing is attached using silicone RTV to the lower aft
edge of the wing as close to the outboard edge as possible. I started mine up
against the winglet. Here are some pictures of the flap prior to test flight.
Last Updated on
July 12, 2008
|