Not just aircraft. 1942 Welbike
Attractions & Amusements in Alberta picture - About 4,000 of these diminutive scooters were produced by the Excelsior Motor Co. Ltd. of Birmingham, England. The Welbike could be folded, placed in a special container and dropped by parachute to provice immediate motorized transportation for paratroops during World War II. 3 hp 70 lbs 30 mph