Avalon is one of only 2 Mystic Class Deep Submergence Rescue Vehicle, built in the 1970’s and retired in the early 2000’s it was a submarine rescue system designed to fly anywhere in the world within 24 hours and begin a rescue operation.
It was constructed by Lockheed in Sunnyvale, California, and the Draper designed control & Navigation system borrowed heavily from technology developed for the Apollo program.
DSRV-2 Avalon is on display at the Morro Bay Maritime Museum
https://morrobaymaritime.org/
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