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At Mach 0.65, u is 65% of the speed of sound (subsonic), and, at Mach 1.35, u is 35% faster than the speed of sound (supersonic). An F/A-18 Hornet creating a vapor cone at transonic speed just before reaching the speed of sound. The local speed of sound, and hence the Mach number, depends on the temperature of the surrounding gas.
Maximum speed: 2,400 km/h (1,490 mph, 1,290 kn) at altitude; Maximum speed: Mach 2.25 1,400 km/h (870 mph; 760 kn), Mach 1.13 at sea level; Cruise speed: 1,170 km/h (730 mph, 630 kn) / Mach 1.1+ supercruise at medium altitude [239] Range: 3,600 km (2,200 mi, 1,900 nmi) at altitude 1,580 km (982 mi) at sea level
Fitted with an afterburning version of the AL-7 engine after the first eleven flights, the prototype set a Soviet speed record of 2,170 km/h (1,170 kn, 1,350 mph, Mach 2.04) in April 1956. [3] The prototype was intended to be armed with three 37 mm Nudelman N-37 cannons and 32 spin-stabilized 57 mm (2.25 in) unguided rockets in a ventral tray ...
Long March 8 (Chinese: 长征八号运载火箭) is an orbital launch vehicle developed by the China Academy of Launch Vehicle Technology to launch up to 5000 kg to a 700 km altitude Sun-synchronous orbit (SSO). [4]
The Long March 7 (Chinese: 长征七号运载火箭), or Chang Zheng 7 in pinyin, abbreviated LM-7 for export or CZ-7 within China, originally Long March 2F/H or Chang Zheng 2F/H, nicknamed Bingjian (冰箭; 'the Ice Arrow'), is a Chinese liquid-fuelled launch vehicle of the Long March family, developed by the China Aerospace Science and Technology Corporation (CAST). [4]
= 9.964 016 418 183 52 kN = 1.12 short tons-force [note 7] ≈ 72 069.87 pdl [note 8] Short ton-force. The short ton-force is equal to the weight of one short ton.
The designation for a specific motor looks like C6-3.In this example, the letter (C) represents the total impulse range of the motor, the number (6) before the dash represents the average thrust in newtons, and the number (3) after the dash represents the delay in seconds from propelling charge burnout to the firing of the ejection charge (a gas generator composition, usually black powder ...
An unusual addition to the R-25 was an emergency mode thrust boost which increased the compressor speed to 106% and also increased the afterburner fuel flow with the addition of a second afterburner fuel pump. Thrust was increased to 96.5 kilonewtons (21,700 lb f) below an altitude of 2,000 metres (6,600 ft). The time limit for its use was 1 ...