Word: mach
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Dates: during 1960-1969
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...first plane, built in 1929, was an endearing spit-and-string monoplane called "the Doodlebug," and his most recent is the F-4 Phantom II, the Mach 2 workhorse of the Viet...
...reason is that the 23 prototype F-111s built by General Dynamics have had problems. The key swing-wing design, which permits 120-m.p.h. landings and supersonic dashes, has worked well, and the plane, in its 1,800 test flights to date, has hit speeds as high as Mach 2.5. But the Navy, in particular, has complained that the F-111B, which at 66 ft. and 35 tons has grown considerably from its design size and weight, is too long and too heavy for carrier operations. The price tag, too, has grown. Instead of the $2,800,000 each plane...
Meanwhile, Boeing is going ahead as best it can. The B-2707 still has some design problems; foremost among them is the sonic booms it will create whizzing along at Mach 2.7 and the airport noise its engines will cause. But Boeing is confident that its swing wing, which folds back along the fuselage at 1,800 m.p.h. and opens out at slower subsonic speeds, may solve much of the boom and vvrrooom. And even while some engineers work at refinements such as these, others are already seriously at work on a new generation of jets to eventually follow. They...
Draken fighters, a Mach-2.2 all-weather interceptor...
...President Fernando Balaunde Terry, "we will buy them from any other country willing to sell to us." And possibly cheaper, since Europe is hungry for the business. The Swedes are offering the Saab Draken fighter for some $700,000, compared with $900,000 for Northrop's slower (Mach-1.3) F-5 Freedom Fighter (see U.S. BUSINESS). Brazil claims that five-year terms are the best it can get in the U.S.; the British are offering ten years. As a result, the Brazilians ordered ten Avro-748s from Britain last month, and took an option for more...