Word: liquidly
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Dates: during 1960-1969
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...first there was good reason for the Russian lead. In 1954, when the Soviets began work on their intercontinental ballistic missiles, they needed an engine powerful enough to lift their outsize nuclear warheads. They gave top priority to that goal and developed the 800,000-lb.-thrust, liquid-fueled booster engine that has since provided the power for their spectacular out-space shots as well as their ICBMs. The U.S., with a smaller warhead, did not require such massive power, settled on the 360,000-lb.-thrust Atlas engine, still the biggest in the U.S. space arsenal...
...carefully air-conditioned, and she gets ultraviolet light treatments. But sunshine? Never. Twice a day Sister exercises in an "outdoor" run -shingle-roofed, walled with Plexiglas and floored with specially selected gravel. Only when she is being prepared for show is Sister permitted the luxury of a bath-in liquid Lux detergent. Scratching is forbidden: it might damage her coat. Panting is frowned upon: it might destroy her air of "distinction and dignity...
...missile watchers, the men who have marked the flight of so many of Cape Canaveral's great fire-breathing birds, last week's show was a dazzling spectacle. The blast-off was swift and sure; there was none of that heart-stopping hover of other tests when liquid-fueled monsters seemed to balance in uncertain equilibrium before they picked up the momentum of flight. This time the gleaming, 58-ft. cylinder shot straight up into the sky ahead of its lengthening tail. Three seconds after launch, its guidance system took over, turned it into the southeast. Thirty minutes...
...come within seconds of firing-Minute-man has moved unerringly from drawing board toward operational readiness. The newest member of the Air Force missile family was born four years ago. when the nation's hopes for a nuclear-tipped intercontinental ballistic missile were carried by hard-to-handle, liquid-fueled rockets still in the development stage. Even then, before such giants as Atlas and Titan were ready to go, cold war planners worried that the massive, complex installations demanded by liquid fueling made tempting hot war targets. What was needed was a smaller, mobile missile that could be easily...
...intermediate range (1,200 miles) solid-fueled missile. The Air Force went to work on Minuteman, designed to be fired some 6,000 miles from bases in the continental U.S. Like Polaris. Minuteman packs a half-megaton punch (only one-third of the explosive load of the fully developed, liquid-fueled Atlas and only one-fifth of the giant warhead of the liquid Titan). Like Polaris and the Army's tactical Pershing missile, Minuteman is cheaper and far simpler to handle than its liquid-fueled predecessors, requires a much smaller crew. Once built and armed, it can be stored...