FPA is the world's premier organization of physician-pilots. We participate in a wide variety of educational, charitable and recreational activities involving medicine and aviation. If you are a practicing or retired physician (MD or DO) or a medical student who is also a pilot, you should give serious consideration to joining the Flying Physicians Association as an Active member. Non-pilot physicians with an interest in aviation are also welcome as Associate Members.
A level of constant atmospheric pressure related to a reference datum of 29.92 inches of mercury. Each is stated in three digits that represent hundreds of feet. For example, flight level (FL) 250 represents a barometric altimeter indication of 25,000 feet; FL 255, an indication of 25,500 feet.
"Success maybe, excitement guaranteed!"
Source: Never at a loss for words, that is SpaceX's Elon Musk discussing the potential for success as the company prepares for the first major test of its Starship launch system.
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