Word: hydrogen
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Dates: during 1980-1989
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Several promising replacements are already being tested. One group, called HCFCs, or CFCs with an extra hydrogen atom, is already used in some home air- conditioners...
...five aborted engine tests so far have been due to fueling problems, specifically in lines that carry liquid hydrogen from ground equipment to the tank. After two of the failures, several hours were required to unload more than half a million gallons of liquid hydrogen and oxygen from Discovery's tanks before technicians could examine problems. NASA engineers are not certain exactly what caused last week's problem. Said Joseph Lombardo, who oversees the shuttle's main-engine project at Marshall Space Flight Center in Alabama: "We don't know whether it was a faulty indication or really a malfunction...
Harris said that immediately after the shutdown, the launch team remotely began to make the vehicle safe as it sat on the pad, its tank loaded with 385,000 gallons of liquid hydrogen and 143,000 gallons of liquid oxygen...
...benefits of hydrogen have not been lost on one group of U.S. researchers. Engineers working on the proposed National Aerospace Plane say that hydrogen is the only combustible that ignites fast enough to boost the craft to orbital velocity, roughly 25 times the speed of sound. The frigid fuel could also be used in a cooling system to keep the plane from burning up during its fiery re-entry into the atmosphere. Test flights are scheduled...
Electronic fishing tackle takes much of the guesswork out of an ancient pastime. -- A new boost for liquid- hydrogen jet fuel...