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Paul Lipps wrote:
Here's
something else to try, at least with the 235 flap actuator. Connect a spring between the end of the flap actuator and the elevator push-pull tube. As you lower the flaps, it will give up elevator in proportion. On mine, once I trim to 100 mph IAS when landing, that speed is maintained as the flaps are lowered. I think the spring I used is similar to the main-gear OC-link tension spring.
Great idea Paul!
My 1944 Grumman Widgeon had two elevator trim tabs, one on each side...one went to the cockpit control (a crank handle, connected to a cable, to a chain, turning a gear that operated a cable that went into the elevator, which turned a jackscrew that operated the tab) and the other trim tab was connected with a cable (and a return spring) to the flaps.
Worked great! Lots to learn from the old guys!
John
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