Ralph Aston Sudjono

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Ralph Aston Sudjono
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Donar 155 mm Self-Propelled Howitzer (Germany)

DONAR is an autonomous artillery gun module mounted on ASCOD 2 infantry fighting vehicle chassis. Image courtesy of General Dynamics European Land Systems.

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North American rocket-powered aircraft - North American Aviation USAF, NASA Envelope: Hypersonic (Mach high-altitude feet m)) testing. First manned hypersonic aircraft; capable of suborbital spaceflight.