On 19 Jun 2004 19:43:08 -0700, (Eunometic)
wrote:

Why is a slab elevator sometimes used?

If you mean a horizontal stabilizer that changes angle (in contrast to
trim tabs), it's a very old concept. The Piper Cub works that way. You
have a trim handle like a window crank. Roll it and you turn an
endless cable that turns a jack-screw (worm gear) which raises or
lowers the front of the stabilizer.

all the best -- Dan Ford
email: (put Cubdriver in subject line)

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