Here's a KC-135E Stratotanker. The body is actually quite comfortable.
This is the cockpit. The crew were explaining various things to the visitors.
This hole is on the ceiling right behind the cockpit. It actually is a hole - it is so a navigator
can make a star sighting with a sextant. It seems that its now used for other purposes. A crewwoman
said that when she was a rookie a more senior officer told her to take a measurement through the
hole - note that air pressure is much less outside the airplane than inside, so her measurement
device was sucked right out of the airplane. Other crew mentioned that they do that with eggs,
or toilet paper - put a pencil through the holder and see who can get the longest continuous stream.
This is why we have the greatest military in the world.
Next - Fighters