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"Nobody actually associated with the program while I was in it EVER called it the "Wobblin' Goblin," although I've seen that in print a lot. It didn't wobble--was a rock-solid platform (watch the combat videotape!)." The nickname of "Wobbly Goblin" is fictitious-no one ever called the F-117A that. Apparently a couple of old F-117A test pilots were at a test pilot convention. One of them made the reference that the plane felt like a "Wobbly Goblin" right before some particular computer compensation kicked in during an early flight test. This was heard by one guy, who told his friend, who in turn talked to a reporter in New York over the phone. The reporter then wrote it in an article incorrectly saying that pilots routinely use the term "Wobbly Goblin". (As a note: the article's goal was to degrade the capabilities and quality of the F-117A.)
The following definition of the All-Lifting-Vehicle (ALV) is offered:
A vehicle that has all horizontal orientated elements (i.e., wing, fuselage, tail, etc..) are
continuous and aero dynamic ally shaped to contribute proportionally equivalent amounts of
lift throughout the flight envelope.
This broad definition allows for the inclusion of all existing definitions for flying wing, all-wing, tailless, and lifting body. Note, the above definition does not allow for a vehicle that has a fuselage that does not provide appropriate lift, a tail/canard that only functions as a trim/control surface, or a nacelle that only houses the propulsion system. The various names that make up the ALV category are as diverse as the concepts themselves and vary from flying wing to flying fuselage. Definitions of the six specific concepts are listed belowr.
A tailless airplane accommodating all of its parts within the outline of a single airfoil.
Aircraft consisting of nothing but wing. (Northrop's definition)
An aircraft consisting of a single wing, without conventional fuselage or tail.
An aircraft consisting of an aerodynamically shaped fuselage that generates a majority of the
total aircraft lift.
A thick aerodynamically shaped body with section lift characteristics equivalent to that of a wing.
Aircraft that chiefly or solely generate lift by their bodies.