It's a shame people die because of pilot laziness and carelessness. Here's how it happens. These aircraft sit out in the weather where water condensation builds up in the fuel tanks. Then a pilot decides to go fly. He drains water from the fuel tank with a drain valve, but depending on how long the aircraft has been sitting effects how much water condensation has gathered. Aviation gasoline is a light blue color and in some light it's hard to see. Some pilots finish by draining a little fuel on their finger to feel the cold fuel evaporate. However here in Florida the heat and humidity mask the fuel's coolness. The tragedy happens when the pilot starts the engines and lets them and manifold heat up as they taxi out to the runway. At this point the engines are running on fuel that was in the fuel lines not the fuel tanks. The pilot takes off with everything looking good until watered fuel gets to the engines. Usually between 1,500 and 3,000 feet in the air the engines quit for lack of good fuel. It happens less often in the northern climes where the finger test of fuel feels colder than water. Also, It's the pilot with about 2000 hours of flying that will be the most careless of flying safety needs. Physicians are the highest risk group for flying accidents.
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