|Quoting cornutt (Reply 1):|
Damn. I've read that some of the pre-WWII aircraft had tunnels through the wings that allowed an onboard mechanic to access and service the engines in flight.
|Quoting Geezer (Reply 2):|
the only thing I can think of during WW 2 that even started to have wings that big, was the B-19, and only 1 or 2 of them were ever built; if I'm not mistaken, only one of them ever flew.
|Quoting rwessel (Reply 5):|
You usually cannot enter the "balloon" part of a blimp, and engines on a non-rigid airship are usually mounted on the gondola.
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