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Acoustic sources within the "jet pipe" also contribute to the noise, mainly at lower speeds, which include combustion noise, and sounds produced by interactions of a turbulent stream with fans, compressors, and turbine systems. [1] The jet mixing sound is created by the turbulent mixing of a jet with the ambient fluid, in most cases, air.
A "Cockpit Sound Recorder" (CSR) was independently invented and patented by Edmund A. Boniface Jr., an aeronautical engineer at Lockheed Aircraft Corporation. [16] [17] [18] He originally filed with the US Patent Office on February 2, 1961, as an "Aircraft Cockpit Sound Recorder". [19] The 1961 invention was viewed by some as an "invasion of ...
The registration often denotes the aircraft type and maker. Some examples: HB-Axx two-engined aircraft from 5.7 to 15 tons, Aircraft over 15 tons due to shortage of Jxx. HB-Bxx balloons; HB-Cxx single-engined Cessnas under 5.7 tons; HB-Dxx and HB-Kxx other single-engined aircraft under 5.7 tons; HB-Fxx Swiss-produced aircraft like PC-6 and PC-12
Some analysts claim Infra-red search and track systems (IRSTs) can be deployed against stealth aircraft, because any aircraft surface heats up due to air friction and with a two channel IRST is a CO 2 (4.3 μm absorption maxima) detection possible, through difference comparing between the low and high channel.
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The pilot was told not to delay because another aircraft was 2.5 miles (2.2 nmi; 4.0 km) out on final approach to the same runway. [4]: 5 The following is a transcript of Flight 90's cockpit voice recorder during the plane's acceleration down the runway. 15:59:32 CAM-1 Okay, your throttles. 15:59:35 [SOUND OF ENGINE SPOOLUP]
The University of North Carolina has agreed to pay new football coach Bill Belichick $10 million a year, according to a term sheet the university released Thursday afternoon.. While the agreement ...
The RAF aircraft were some of the first to take advantage of the new center wing fuel tank found in Block 13 aircraft. In RAF service, the C-17 has not been given an official service name and designation (for example, C-130J referred to as Hercules C4 or C5), but is referred to simply as the C-17 or "C-17A Globemaster".