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Hand-Held Self-Maneuvering Unit to be used during EVA on Gemini 4
Close-up view of Hand-Held Self-Maneuvring Unit, a device that will be used during extravehicular activity by astronaut Ed White during Gemini-4 flight. The HHSMU is an integral unit that contains its own high pressure cold gas supply, together with the necessary metering valves and nozzles required to produce controlled thrust.
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