Apollo Command/Service Module
The flag has been displayed on every U.S. spacecraft designed for manned flight starting from John Glenn's Friendship-7 flight in 1962, including Mercury, Gemini, Apollo Command/Service Module, Apollo Lunar Module, and the Space Shuttle. The flag also appeared on the S-IC first stage of the Saturn V launch vehicle used for Apollo. But since Mercury, Gemini, and Apollo were launched and landed vertically and were not capable of horizontal atmospheric flight as the Space Shuttle did on its landing approach, the streaming convention was not followed and these flags were oriented with the stripes running horizontally, perpendicular to the direction of flight.