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Stationed in Biloxi MS, USAF '78-'82. Bought a glitter blue/silver Vulture used as a race boat from a Captain sent to Germany in '79. Called a "bus"; well. Ran documented 70+ mph all day, with the leg cutouts sounded like Satan's own chainsaw, never worried about chop cuz on the pad ya never noticed; in the air, ya didn't care.
But mine was a 21'- is there something I'm missing?
-R