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ON MARK ENGINEERING COMPANY |
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| USA |
Formed 1954 as a specialist maintenance and modification
contractor for Douglas B-26 Invader bombers, developing
high-speed executive transport and heavily armed
counterinsurgency versions. The On Mark Marketeer was
a six/eight-seat corporate transport based on the B-26 airframe. The externally similar Marksman had a pressurized
cabin. A B-26K Counter Invader was developed for the
USAF's Tactical Air Command. In 1962 Mark was responsible
for the first Pregnant Guppy conversions of the Boeing
Stratocruiser, on behalf of
|
 All the World's Rotorcraft |
