Periscopes.. Partial raise/lower

[scar3tactics]

Does anyone know how often this was actually used? Looking at the interior of subs it seems like there's a pretty limited range of where the scope eyepieces are exposed and usable. Anything lower than full extension seems like it would be murder on the observers back

[razark]

I know I've read about skippers sitting or lying on the deck to look through the scope.

Edit:
Most of the incidents of using the scope this way involved very shallow water, where extending the scope all the way would have left it very exposed. I also seem to recall one mention where the crew modified the scope so it could be partially extended and used in the Control Room, rather than the Conning Tower. I'm not sure exactly how that was accomplished.

[Black_Hawk70]

Originally Posted by scar3tactics

Does anyone know how often this was actually used? Looking at the interior of subs it seems like there's a pretty limited range of where the scope eyepieces are exposed and usable. Anything lower than full extension seems like it would be murder on the observers back

I think I'd probably prefer the backache over the increased chance of detection, due to a fully extended scope.