> He said the big hurdle was to learn to trust the instruments and ignore your body screaming at you that the instruments are lying. In about 1967, my dad (car

> He said the big hurdle was to learn to trust the instruments and ignore your body screaming at you that the instruments are lying. In about 1967, my dad (career USAF, fighter jock) was flying in clear, sunny weather. He started to get bad vertigo, so he did an emergency, instruments-only landing at a nearby AF base. He said that on final approach, he "knew" he was upside down, and that it was all he could do to refrain from rolling the airplane "right side up" for touchdown on the runway.