This t-shirt was created for the National Aerospace Cadets (NAC), an aerospace education organization founded by Ken Beatty in 1980. Beaty organized the nonprofit NAC to prepare boys and girls to live in the space age, with lessons in areas such as astronomy, computers, electronics, model rocketry, and celestial navigation. With branches in other states in addition to Beatty's headquarters in Maryland, and as many as 250 young people in the organization in its lifetime, Beatty maintained the organization alone. Beatty also ran the Delmarva Space Training Center, an educational center for the NAC located in the basement of his home.
This t-shirt displays a logo that Beatty, who also worked as a technical illustrator, created for the College Park (Maryland) Airport Effort: National Aerospace Education Memorial Center, Inc. and then adapted for the NAC. Beatty donated the shirt to the Smithsonian Institution's National Collection in 2008.
This object is not on display at the National Air and Space Museum. It is either on loan or in storage.