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Piper Comanche PA24 Fuel Systems Overview




Obviously, there are two approaches to obtaining auxiliary fuel capability.  The first is internally mounted cells, such as in the baggage compartment or under the rear seat or internally mounted fuel cells within the wing panel outboard of the main tank. Regardless of where these internally mounted fuel cells may be located, the net result is the addition of just so much non-supporting dead weight to the aircraft, diminishing its performance and “breaking its spirit” in the same manner as an equivalent amount of dead weight baggage or additional passengers. In direct contrast the second method of obtaining auxiliary fuel facilities is to use eternally mounted wing tip tanks. Here, we find that with a wing tip tank that is designed to be aerodynamically efficient, the tip load is self-supporting: that is, carries its own weight and actually improves the performance