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Supercritical airfoils feature four main benefits: they have a higher drag-divergence Mach number, [21] they develop shock waves farther aft than traditional airfoils, [22] they greatly reduce shock-induced boundary layer separation, and their geometry allows more efficient wing design (e.g., a thicker wing and/or reduced wing sweep, each of which may allow a lighter wing).
Precision Castparts Corp. is an American industrial goods and metal fabrication company that manufactures investment castings, forged components, and airfoil castings for use in the aerospace, industrial gas turbine, and defense industries. In 2009 it ranked 362nd on the Fortune 500 list, and 11th in the aerospace and defense industry. [3]
Pages in category "Aerospace companies of the United States" The following 200 pages are in this category, out of approximately 272 total. This list may not reflect recent changes .
This list comprises the world's largest companies by consolidated revenue, according to the annually ranked Fortune Global 500 published by Fortune magazine, as well as other sources. [2] Out of 50 largest companies 23 are American , 17 Asian and 10 European .
The latter is a supercritical airfoil with a 35° wing sweep and winglets. [33] This flexible wing naturally attenuates turbulence. [36] It was initially powered by two BMW-Rolls-Royce BR710 turbofans controlled by FADEC. The flightdeck features a six screen Honeywell Primus 2000XP EFIS suite. [33]
, is the coefficient of lift of a specific section of the airfoil, t is the airfoil thickness at a given section, c is the chord length at a given section, is a factor established through CFD analysis: K = 0.87 for conventional airfoils (6 series), [4] K = 0.95 for supercritical airfoils.
Another obvious characteristic is the highly swept wing with a supercritical airfoil, used in order to increase the critical Mach number and therefore the top speed. The Citation X has 37 degrees of sweepback at the quarter chord, more than any other business jet and, among civil aircraft, second only to the Boeing 747 's 37.5 degrees.
The vertical and horizontal fins and wingbox are also composite and the high aspect ratio wing is a supercritical airfoil. [10] The MC-21 design is more innovative than the C919 : it is the only airliner with a carbon fibre wingbox made with resin infused dry fibre, cured in an oven out of autoclave . [ 67 ]