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...of the air]] around an [[aircraft]], but unaffected by the passage of the aircraft through it.<ref name = "FAA Definition">{{Cite web | url=http://www.airweb. ...nsity altitude]], [[Cruise (flight)|cruise]] performance and [[go-around]] performance.<ref>''Ground Studies for Pilots: Flight Planning,'' Sixth Edition (Ground ...

...vel longitudinal flight, thrust counterbalances drag and lift supports the aircraft's weight. Lift and drag are components of the aerodynamic force.]] ...ns of steady flight models include aircraft design, assessment of aircraft performance, flight planning, and using steady flight states as the [[mechanical equili ...

[[File:Aircraft propeller diameter.svg|thumb|Diameter of the propeller.]] ...ified/www/FALL/thermodynamics/notes/node86.html 11.7.4.5 Typical propeller performance]" ''[[School of Engineering, Massachusetts Institute of Technology#Aeronaut ...

The familiar study of [[jet aircraft]] treats jet thrust with a "black box" description which only looks at what ...ced momentum and pressure forces created within the engine itself.<ref>The Aircraft Gas Turbine and its operation December 1982, P&W Oper. Instr. 200, United T ...

'''Radar envelope''' is a critical Measure of Performance (MOP) identified in the [[Test and Evaluation Master Plan]] (TEMP). This is Radar systems have natural deficiencies because the laws of physics create performance constraints that cannot be altered. The [[ambiguity function]] associated w ...

...accepted for use by the [[United States Department of Defense]] in certain aircraft design and simulation applications.{{sfn|MIL-STD-1797A|1990|p=678}} The Dry ...en model. The outputs can, in turn, be used as wind disturbance inputs for aircraft or other dynamic systems.{{sfn|Richardson|2013|pp=33-34}} ...

In military acquisition, operational availability is used as one of the [[Key Performance Parameters]] in requirements documents, to form the basis for decision supp Aircraft systems, ship systems, missile systems, and space systems have a large numb ...

...air data. It uses other information such as [[GPS]], wind information, the aircraft's attitude, and [[aerodynamic]] properties to estimate or infer the air dat ...e earlier work used vehicle dynamics models to estimate air data in both [[aircraft]]<ref name="Zeis">{{cite journal ...

...the preferred model of the [[United States Department of Defense]] in most aircraft design and simulation applications.{{sfn|MIL-STD-1797A|1990|p=678}} The von ...án model. The outputs can, in turn, be used as wind disturbance inputs for aircraft or other dynamic systems.{{sfn|Richardson|2013|p=33}} ...

...peller]]s. A propeller is the most common propulsor on ships, and on small aircraft. ...h a counterweight have also been used. Lightly loaded propellers for light aircraft and human-powered boats mostly have two blades, motor boats mostly have thr ...

...west level possible. It is associated with the low [[elevation]] region of performance, and its geometry depends on terrain, radar height, and signal processing. ...,000|sqft|m2}} to be detected. Prevailing wind and weather can degrade MTI performance, and MTI introduces [[Radar scalloping|blind velocities]].<ref>{{Cite book| ...

...describes a variety of techniques used for finding moving objects, like an aircraft, and filter out unmoving ones, like hills or trees. It contrasts with the m ...noise effects that made them useful only for strong signals, generally for aircraft or ship detection. ...

# '''Aeroelastic optimization''': Design of aircraft wings and other components to reduce drag, weight, and ensure structural in ...gn''': Optimization of machine parts for weight reduction, durability, and performance. ...

...ce [[force]], to cause a flow through the fan. Factors which determine the performance of the fan include the number and shape of the blades. [[Mechanical fan|Fan ...aft at speed = C_u; then Useful Power = Axial Thrust * Speed of Aircraft;<ref name="Yahya2010"/> ...

...m and to enable the appropriate linear controller. For example, in case of aircraft control, a set of controllers are designed at different gridded locations o ...important drawback of classical gain scheduling approach is that adequate performance and in some cases even stability is not guaranteed at operating conditions ...

The general constraints for range performance are as follows. ...radar. Each individual PRF has blind velocities where the velocity of the aircraft will appear stationary. This causes [[Radar scalloping|scalloping]], where ...

...its lift to a [[fixed wing]] reduces [[Drag (physics)|drag]], enabling the aircraft to fly faster. ...tially or fully) and its rotational speed further reduced, enabling higher aircraft speed. [[Compound helicopter]]s use these methods,{{r|rob31}}{{r|silva}}<re ...

A '''track algorithm''' is a [[radar]] and [[sonar]] performance enhancement strategy. Tracking algorithms provide the ability to predict fu ...wing identity. This may include speed, altitude, and heading in commercial aircraft. ...

...issue=1 |pages=20–30 |doi=10.4050/JAHS.17.1.20}}</ref> Unlike [[fixed-wing aircraft]], of which the [[Stall (fluid dynamics)|stall]] occurs at relatively low f == Performance limits == ...

...Laminate components for use in [[United States Air Force|U.S. Air Force]] aircraft and a GF-PPS component on the [[Airbus A380]] are joined using implant resi ...orks better to evenly heat the entire surface. This difference affects the performance of the resulting weld, the welded joints using the carbon fiber fabric can ...