The Post Flight on the Mo was something like.....Fill it up with oil and check the fuel!
When the oil can is a proper 55 gallon Steel Drum (US Gallons) and a hand pump.....you know you are in serious business.
The Emergency Intercom system for the pilots was a long stick to hit the other guy on the shoulder and then semaphore signals.....as the cockpit was ROOMY!
There shall never be anything as wonderful to hear as the sound of a great big old Radial Engine wake up from a sound sleep! Jet Fuel might tweak your Libido....but AvGas and a big Pratt and Whitney Radial belching smoke, flame, and thunder really generates Iron!