Word: aft
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Dates: during 1970-1979
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With the air pressure that had built up in the cabin and cockpit as the plane climbed, the aft bulkhead buckled, apparently because of an almost invisible 12-in. crack. The sudden decompression blew off the entire nonpressurized tail cone-a lO-ft.-long metal shell serving mainly to streamline the fuselage...
...aft bulkhead problem was not a new one for the DC-9. McDonnell Douglas warned airlines three years ago that fatigue cracks had shown up in some early models of the plane. The manufacturers advised airlines to inspect the bulkheads more frequently or reinforce all of these early-model DC-9s with "doubler" pieces...
...Dade Tax Revolt Committee in Miami last fall and set out to halve the county property tax rate, to $4 per $1,000 of assessed value. He gathered 15,000 signatures to put the proposition on the ballot next month. But the best laid schemes of tax revolutionaries gang aft agley. Because of a whopper of an error, Wilson's petition stated the proposed new rate as 4 mills per $1,000, meaning, for example, that the tax on a $100,000 house would be only 40?, rather than the $400 that he intended...
...train on wind-surfing boards in order to improve their coordination and hone their sail-trimming skills. Standing on the board, a windsurfer grasps the wishbone-shaped boom and steers his craft by tilting the sail: when the boom is pushed forward, the boat heads off-wind; when pulled aft, it heads into the wind. Since the sail is mounted on a universal joint, it is free to move in any direction, enabling the sailor to tack and jibe easily...
...that we did cause the crack." But he suggested that the problem could have originated with metal wedges used by the manufacturer to align parts that had not fitted exactly when the aircraft was built Said he: "It may be that the existence of shims in the aft bulkhead created an interference fit that made the creation of the crack inevitable, no matter what procedure was used...