j6161

Iwant to build a sail plane with a T tail how do i control the horiz stabilizer

BarracudaHockey

My Feedback: (11)

Mine has a servo back there. You can also use either a bell crank arragenment or a flexable pushrod like a nyrod and run it from the front, though I prefer thin carbon rods from CST Composites as they wont change length (and hence trim) in hot or cold weather.

vicman

My Feedback: (10)

I'm interested in pictures of how guys do this successfully. Especially for high speed planes and using pull for up. I've had a few ideas and even tried some that had less than perfect results when the planes get to the 40 size range. My 1/2a stuff has been fine.

qldviking

all 4 of my gliders are T-tail, I use sullivans c/f pushrods on both elevator and live tail plane, I rarely have a problem with trim

vicman

My Feedback: (10)

Do you pull or push for up?

Most of the clean glider tails I've seen use a solid wire or CF as mentioned but push for up.

MinnFlyer

My Feedback: (4)

You can do it externally by making the outer tube the LE of the fin, or if the fin is built-up, you can put the pushrod internally.

In either case, you should use a flexible cable because they will move more easily in tight bends.

vicman

My Feedback: (10)

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