";s:4:"text";s:1761:"Duane Ross, head of astronaut selection at NASA, agreed with the size restrictions, admitting that it would be “wrong” to select astronauts that wouldn’t fit into the spacecraft. More recently, the minimum required height was set at just 4’ 10 1/2”. The maximum height was 6’ 4”. Payload Specialists Payload specialists are persons other than NASA astronauts (including foreign nationals) who have specialized onboard duties; they may be added to shuttle crews if activities that have unique requirements are involved and more than the minimum crew size of five is needed. Home. Space Travel and Exploration. About 6%2C000 applied for the most recent pool%3B 8 were selected. Height between 64 and 76 inches. Indeed, anybody who’s watched a space movie can appreciate the already cramped interiors, so it’s easy to … Among the requirements: 20/20 vision (either naturally or with corrective lenses). They must have perfect 20/20 vision, normal blood pressure and be between 62 and 75 inches tall.