In 1949 the U.S. Navy asked the Aerojet General Corporation to find a way to allow underwater demolition teams to move more quickly. Two Aerojet engineers, Calvin Gongwer and George McRoberts, delivered not only a report but the miniature submarine shown in this historic film. This version appears to be electrically powered and probably not the prototype version, which was actually human powered. Inside the fiberglass hull of that first unit was what Gongwer and McRoberts christened the “Aquaped”, a unicycle-like device that a diver could pedal underwater. The submarine was fully maneuverable underwater but did require the use of an Aqualung, and could supposedly move about four times faster than a frogman. The AquaPed was listed in the U.S. Divers catalog for $160 and the human powered submarine $1500 in 1953, with the listing indicating the submarine could move at roughly 5 knots. (Source: August 1953 issue of Life Magazine).

Aerojet’s submarine caught the attention of budding director/producer Roger Corman. He obtained the company’s enthusiastic permission to use one of the subs in return for on-screen promotion. The result was his first solo production, “Monster From the Ocean Floor” (1954).

It’s unclear whether the Aerojet mini-sub or the Aquaped were ever used by the UDTs / SEALs, but SDVs (Seal Delivery Vehicles) were deployed with various units in the 1950s.

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This film is part of the Periscope Film LLC archive, one of the largest historic military, transportation, and aviation stock footage collections in the USA. Entirely film backed, this material is available for licensing in 24p HD, 2k and 4k. For more information visit http://www.PeriscopeFilm.com