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Originally Posted by TomcatMVD
Correct me if I'm wrong, but doesn't the obs periscope tilt at a higher angle than the attack scope? Which makes it useful for airplane spotting. (or bird watching  ) |
That is correct. On the other hand the observation periscope leave a much more visible wake, that's why most people don't use it. Personally I use the observation periscope only late in the war 1944-45 with the attack one when I'm using the snorkel to be able to see planes and other targets.