XB 15
Prior to the Spruce Goose birth, the U.S Air force titan was the biggest aircraft in the country. The XB 15 was so enormous that passengers could easily get lost in the aircraft, the XB 15s size was so overambitious that they couldn’t find engines capable enough to allow it to fly faster than 200 mph. The XB 15 was never developed further and its sole purpose was being employed as a cargo plane during the Second World War.
XB 15
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