Club Homepage Forums The Cessna 150-152 Fly-In Fly-In Questions CPAP in a Tent?

Max differential pressure is about 8.4 psi. And again, that is pretty much standard throughout the industry. Whether is it Boeing, Airbus, Lockheed, McDonald Douglas, Embraer or Lear etc.

Imagine trying to blow up a balloon to one size in a constant state. With air entering the balloon at one end and then you create a hole at the other end to release just enough of the air to keep the balloon at the desired size you want.

Compressed air off one of the low stage compressors of the engine will supply the cabin with air to both give you climate control and pressurization. And it is pretty much FREE! You are just stealing just a little of the compressed air off the engine. No freon is used in jet aircraft air conditioning systems.