Lockheed Model 9 Orion is a single-engined passenger aircraft
built in 1931 for commercial airlines. It was the first airliner to have
retractable landing gear and was faster than any military aircraft of
that time.
Lockheed Model 9 Orion is a single-engined passenger aircraft built in 1931 for commercial airlines. It was the first airliner to have retractable landing gear and was faster than any military aircraft of that time.