To fulfill English requirements for stuntmen to achieve instructor level in six sports, Crane became an instructor in gymnastics, parachuting, scuba diving, high diving, karate, and fencing. When he could not obtain a union card as a stuntman fast enough, he became an instructor in three more sports, including hang gliding.
To become an instructor for stuntmen to meet English requirements, Crane took on roles in gymnastics, parachuting, scuba diving, high diving, karate, and fencing. When he couldn't get a union card quickly enough, he added hang gliding to his list of instructors.