Jim Macklin wrote:
Cup holders allowed drinking in flight and that in turn
required "draining the pilot's sump" more often in flight.
This required relief tubes, but then women started flying
and that requires the potty. The potty requires plumbing
and that means plumbers. More money "down the drain" [pun
intended] and then the government started buying toilet
seats and we all heard what THAT cost.
Maybe we could try to build a jet engine that burned paper
trash instead of petroleum products. This could save a lot
of oil and several steps in the process of flight, they
could just directly burn money.
The oil companies will be knocking at your door soon
Dan, U.S. Air Force, retired