Are fighter pilots trained to acclimated to handling high G-forces, high altitude, and high speeds?
Fighter pilots do become acclimated to the G forces over time. They can further "train" for the high G forces with weight lifting and special trainers (think of a very fast carnival ride that causes high G force on the rider) for practicing G straining maneuvers. They also wear "G suits" that compresses the abdomen, and legs to keep the blood from "pooling" in the lower body and away from the brain. "G Straining" keeps the blood in the core and head to remain conscious.
In modern aviation, one cannot acclimate to high altitude. Mountain climbers do, but they spend days and weeks at altitude to do so. Modern aircraft are pressurized and do not require their pilots to so acclimate. Fighter pilots do wear O2 masks to provide oxygen, which would help a little in the case of a decompression, but, without a pressure suit, we are very vulnerable to the low pressures of high altitude. If our cabin pressure rises above about 20,000 feet, our blood will be unable to absorb and carry enough O2 to maintain consciousness. Say goodnight, Gracie. High speeds are transparent to pilots at altitude; flying fast and high is just a number on a dial. Flying low and fast is more difficult, mostly because obstacles become harder to see and avoid. From a physiological standpoint, flying fast feels no diiferent than sitting in a car. However, G forces *are* something we train for and, I believe, acclimate to. Starting in the training command, we are taught techniques to count
