Word: stalls
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High-Speed Stall? In the current Idlewild investigation, the CAB hopes for crash clues from the automatic flight recorder, which records time, compass heading, air speed, altitude and "g's" (acceleration) and is mandatory equipment on all jets. When found, it was flown to Washington for study at the Bureau of Standards, its aluminum tape hopefully undamaged. Interest was focused on the speed that it will show, because one theory points to what airmen call a "highspeed stall" as the cause of the accident...
...stalling speed of a 707 flying straight and level and loaded to 250,000 lbs. is about 196 m.p.h. with the flaps retracted. In a turn with the wings banked at 17 degrees, the kind that jets often make when climbing away from Idlewild's runway 31-L, the stalling speed goes up to about 215 m.p.h. A 707 flying below that speed is apt to lower a wing and dive toward the ground. According to competent eyewitnesses, this is what American's 707 did. The stall, if it was a stall, might have been caused by retracting...
...stall caused by prematurely retracted flaps would be due to pilot error, and in the opinion of CAB men, the crew that died at Idlewild was unusually competent; Captain James Heist had 18,000 hours, of which 1,600 were in 707s. So other theorists suspect that the fatal plunge of the 707 may have been caused by misbehavior of its hydraulic control system. There have been many instances, both proved and suspected, when the hydraulic system has made the aircraft extremely difficult for the pilot to control. This seems to have happened when a Sabena (Belgian) Airlines 707 crashed...
Belgian government has said nothing, it is an open secret in Washington that when Sabena's 707 nosed up sharply and fell in a whirling stall, its controls were found locked in full nose-up position...
Brown went into a stall, but the Crimson recovered a rebound and came downcourt. Gene Augustines' 25 foot jumper missed and groans went up. Harvard recovered again and Joe Deering, playing the percentages, took a 30 footer that missed the basket completely. Brown also got into the act, missing a 25 footer from the corner before Brown finally scored again, and calmed down its rapidly graying coach...