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The engine pressure ratio (EPR) is the total pressure ratio across a jet engine, measured as the ratio of the total pressure at the exit of the propelling nozzle divided by the total pressure at the entry to the compressor. [1] Jet engines use either EPR or compressor/fan RPM as an indicator of thrust. [2]
In conjunction with ARP4754, ARP4761 is used to demonstrate compliance with 14 CFR 25.1309 in the U.S. Federal Aviation Administration (FAA) airworthiness regulations for transport category aircraft, and also harmonized international airworthiness regulations such as European Aviation Safety Agency (EASA) CS–25.1309.
In May 1996, the FAA Aviation Rulemaking Advisory Committee (ARAC) was tasked with a review of harmonized FAR/JAR 25.1309, AC 1309-1A, and related documents, and to consider revision to AC 1309-1A incorporating recent practice, increasing complex integration between aircraft functions and the systems that implement them, [20] and the ...
This template generates an external link to an FAA Airport Master Record (Form 5010). The link connects to a PDF document at the website of GCR & Associates, an FAA contractor. The data is updated every 56 days by the FAA's Office of Aeronautical Information.
EICAS typically includes instrumentation of various engine parameters, including for example speed of rotation, temperature values including exhaust gas temperature, fuel flow and quantity, oil pressure etc.
In the United States issuance of such certificates is under the purview of the Federal Aviation Administration (FAA). The determination of whether a proposed change in design, power, thrust, or weight to an existing type certified aircraft, engine, or propeller is acceptable under a STC is proposed by the design holder, and subjected to the ...
But EPR had to cut its dividend during the pandemic. The big culprit was its movie theater exposure, as movie chains weren't in a particularly strong state entering the global health crisis. Given ...
For example, the Aviators Model Code of Conduct (AMCC) "recommends operating practices to enhance the quality and safety" of general aviation flight operations. [1] The AMCC described behaviors that pilots and mechanics should exercise as good aviation citizens, including: making safety the highest priority; seeking excellence in airmanship;