Pressure altitude is the height of an aircraft above a theoretical standard datum plane, used as a baseline for calculating aircraft performance under standard atmospheric conditions (29.92 inHg and ...
Engineer and test pilot Miguel Iturmendi cleared a major hurdle in his effort to pilot his electric aircraft, Helios Horizon, into the stratosphere when the partial pressure suit that he will wear on ...
In a partial-pressure suit, the counter-pressure is not as complete as in a full-pressure suit, but it is placed so that shifts in body fluids are kept within reasonable limits. On the other hand, a ...
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