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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 aviation, above aerodrome level (AAL), or above aerodrome elevation (AAE), denotes that an altitude is given above the nearest aerodrome or airport. AAIB Air Accidents Investigation Branch: United Kingdom AAIM Aircraft Autonomous Integrity Monitoring AAO Assumed adverse obstacle AAS Airport advisory service [1] AC Advisory circular [2]
Eckles Aircraft: CIMMARON AIRE United States EJT Eclipse Aviation: ECLIPSE JET United States ECQ Eco Air: SKYBRIDGE Nigeria DEI Ecoair: Algeria NAK École Nationale de l'Aviation Civile: ENAC SCHOOL France Formerly SFA prior to SEFA ATO being absorbed by the École Nationale de l'Aviation Civile. ECX Ecomex Air Cargo: AIR ECOMEX Angola ECD ...
Engine pressure ratio (EPR) differs from OPR in that OPR compares the intake pressure to the pressure of the air as it exits the compressor, and is always greater than 1 (often very much so), whereas EPR compares the intake pressure to the pressure at the engine's tailpipe (i.e., after the air has been used for combustion and given up energy to ...
This is a list of initials, acronyms, expressions, euphemisms, jargon, military slang, and sayings in common or formerly common use in the United States Air Force.Many of the words or phrases have varying levels of acceptance among different units or communities, and some also have varying levels of appropriateness (usually dependent on how senior the user is in rank).
X describes the aircraft manufacturer for which the engine is approved. A "0" stands for Boeing; "1" for Airbus; and "4" for the McDonnell Douglas MD-11. YZ denotes the certified thrust in US pounds (lbf) in pro-mile fraction. Example: A PW4090 identifies a PW4000 series engine certified for Boeing (777-200ER) and has a certified thrust of ...
EPR Properties is a property-owning real estate investment trust (REIT), but it has a very specific focus on experiential assets. The list of properties in its portfolio includes things like ...
An engine-indicating and crew-alerting system (EICAS) [1] is an integrated system used in modern aircraft to provide aircraft flight crew with instrumentation and crew annunciations for aircraft engines and other systems. On EICAS equipped aircraft the "recommended remedial action" is called a checklist.