Trivia: The space ship "Valley Forge" from Silent Running was re-used in one episode of the television series "Battlestar Galactica" (1978-1979). It was called the "agro-ship," used to grow food for the colonists.
Trivia: The interior shots of the American Airlines Space Freighter "Valley Forge" were actually filmed aboard the Korean-War-era aircraft carrier "USS Valley Forge" (LPH-8) at the Long Beach Naval Shipyard in California. After filming was completed, the decommissioned aircraft carrier "Valley Forge" was scrapped.