In article ,
"M. H. Greaves" wrote:

I remember seeing on T.V. that the B17 had like big long screw gears/rods
that raised and lowered the u/c in that case the u/c would have been
electrically operated wouldnt it!?? i.e. not hydraulically operated.


Correct, it's a jack screw that operates the gear and it is powered with
an electric motor....the same motor used to power the flaps...and the
tailwheel. Each gear has it's own motor.

--
Dale L. Falk

There is nothing - absolutely nothing - half so much worth doing
as simply messing around with airplanes.

http://home.gci.net/~sncdfalk/flying.html