How interesting would it be if pilots suffered from hypoxia above 10k if they didn't turn on oxygen and if an oxygen system was incorporated into systems that could be damaged, either requiring staying at a certain altitude or diving back to a certain altitude?
Hm.
*ShruG*
It has been an interesting thread! The USAF and Navy pilot training programs both use "pressure chamber" tests and all flight crew must go through this training! Hypoxia affects different people differently! I can only recall my experience with the "chamber". At 20,000 feet, I could still write my name after thirty seconds...at 28,000 feet, could only write 3 letters of first name before ink trailed off in straight line...at 33,000 feet, was unconscious in about 15 seconds. The reason they require that is to show you the danger of not monitoring your oxygen supply or pressurization system.
There are number of ways for crews to monitor oxygen in the aircraft, one in a pressurized, such as the B-29, you had a instrument which showed cabin pressure altitude in feet and also outside pressure altitude. Some instruments show the PSI differential between inside of aircraft and outside. In single engine fighters which were not pressurized during WW2, you had a "flow" meter, which would blink at you as long as oxygen was passing through it to your oxygen mask.
I don't think Aces High would have any way to apply the hypoxia problem as it affect pilots. If they just set an arbitrary figure, then everyone would just stay below it unless they had a way to control their oxygen input.