1979 – Manned Orbital Transfer Vehicle (MOTV) – Grumman (American)

Manned Orbital Transfer Vehicle (MOTV) proposal by Grumman. Rationale for MOTV use: . Servicing satellites remotely using teleoperators operated from earch is more complex, less versatile, and less reliable than having man "on site" to perform this function. . Servicing and checkout is more thorough with man on-site, and contingencies can be more readily handled. …