Word: mach
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...American Aviation Test Pilot Al White took the XB-70A off the runway, weighing 500,000 Ibs., the heaviest at which an aircraft has ever flown. During the 1-hr. 40-min. test, the plane set a new record for continuous supersonic flight: 74 min., at speeds ranging from Mach 1.4 (920 m.p.h.) to Mach 2.1 (1,425-m.p.h.) at a peak altitude...
BLACK PEARLS (Prestige). Tenor Saxophonist John Coltrane is the featured soloist, and he zooms boldly off to do some fine, abstract skywriting at Mach 1. Meanwhile, back at the piano, Red Garland waits to deliver earthbound but agreeable interludes of up-tempo swing...
...situation was laid to Nikita Khrushchev, who allegedly did not want to encourage warlike feelings among children. Pravda, on the other hand, called attention to unsold stocks of toys ($180 million worth in 1963), blamed central planners for misconstruing the public taste. "These monsters of plush, pâpier-maché, wood and stainless steel are costing the state a pretty kopeck," the paper warned...
...actual speed and range were not released, partly because they are legitimate military secrets, partly because the airplane has flown so far only in wind tunnels, and its true performance can only be estimated. But the Government claims it will be faster (about Mach 2.5, or 1,650 m.p.h.) than any operational plane. It will fly twice the distance and carry twice the payload of the best current U.S. fighter. By cruising at moderate speed with wings extended, it will have "transoceanic range without refueling"; if permitted to refuel, it can fly to any part of the earth...
...power, the F-111 uses two radical TF-30 engines built by Pratt & Whitney Aircraft. At slow cruising speeds, they are turbofans similar to the engines on up-to-date jetliners, very sparing of fuel. At Mach 1 and above, the fan action is cut down or eliminated. When full power is called for, the engine uses an afterburner. Aerodynamicists credit the versatile engines as well as the wings for the varied talents...