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Sudden cessation of engine operation
A stall is the slowing or stopping of a process, and, in the case of an engine, refers to a sudden stopping of the engine turning, usually brought about
Stall_(engine)
Gas turbine phenomenon
authority digital engine control (FADEC). Modern compressors are carefully designed and controlled to avoid or limit stall within an engine's operating range
Compressor_stall
Topics referred to by the same term
the free dictionary. Anti-stall can refer to: Anti-stall (engine), a device preventing the stalling of an engine Anti-stall (aeroplane controls), a system
Anti-stall
Type of rocket engine
A rotating detonation engine (RDE) uses a form of pressure gain combustion, where one or more detonations continuously travel around an annular channel
Rotating_detonation_engine
Type of engine issue in aviation
variety of causes, such as fuel starvation, excessive altitude, compressor stall, foreign object damage deriving from birds, hail, or volcanic ash, severe
Flameout
Topics referred to by the same term
aerodynamic surface Compressor stall, the sudden loss of compression in a jet engine Pipeline stall, in computing Stall, Austria, a town in the district
Stall
Gas turbine used to spin a shaft
turboshaft engine is a form of gas turbine that is optimized to produce shaft horsepower rather than jet thrust. In concept, turboshaft engines are very
Turboshaft
Engine where combustion is pulsed instead of continuous
A pulsejet engine (or pulse jet) is a type of jet engine in which combustion occurs in pulses. A pulsejet engine can be made with few or no moving parts
Pulsejet
Turbojet engine component
British English) is an additional combustion component used on some jet engines, mostly those on military supersonic aircraft. Its purpose is to increase
Afterburner
Aircraft propulsion system efficient at a range of speeds higher and lower than sound's
A variable cycle engine (VCE), also referred to as adaptive cycle engine (ACE), is an aircraft jet engine that is designed to operate efficiently under
Variable_cycle_engine
Abrupt reduction in lift due to flow separation
due to slowing down (below stall speed), the latter by accretion of ice on the wings. A stall does not mean that the engine(s) have stopped working, or
Stall_(fluid_dynamics)
Airbreathing jet engine which is typically used in aircraft
The turbojet is an airbreathing jet engine which is typically used in aircraft. It consists of a gas turbine with a propelling nozzle. The gas turbine
Turbojet
Aircraft engine that produces thrust by emitting a jet of gas
A jet engine is a type of reaction engine, discharging a fast-moving jet of heated gas (usually air) that generates thrust by jet propulsion. While this
Jet_engine
Supersonic atmospheric jet engine
A ramjet is a form of airbreathing jet engine that requires forward motion of the engine to provide air for combustion. Ramjets work most efficiently
Ramjet
Type of rocket engine
The aerospike engine is a type of rocket engine that maintains its aerodynamic efficiency across a wide range of altitudes. It belongs to the class of
Aerospike_engine
Piston engine starting system
The Coffman engine starter (also known as a "shotgun starter") was a starting system used on many piston engines in aircraft and armored vehicles of the
Coffman_engine_starter
Machine for continuous flow gas compression
may stall if the inlet conditions change abruptly, a common problem on early engines. In some cases, if the stall occurs near the front of the engine, all
Axial_compressor
Total pressure ratio across a jet engine
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
Engine_pressure_ratio
Jet engine where combustion takes place in supersonic airflow
(supersonic combustion ramjet) is a variant of a ramjet airbreathing jet engine in which combustion takes place in supersonic airflow. As in ramjets, a
Scramjet
Turbine engine driving an aircraft propeller
A turboprop is a gas-turbine engine that drives an aircraft propeller. A turboprop consists of an intake, reduction gearbox, compressor, combustor, turbine
Turboprop
Non-airbreathing engine used to propel a missile or vehicle
A rocket engine is a reaction engine, producing thrust in accordance with Newton's third law by ejecting reaction mass rearward, usually a high-speed
Rocket_engine
Type of aircraft engine
A propfan, also called a propjet, an open rotor engine, or an open fan engine, is an aircraft engine combining features of turbofans and turboprops. It
Propfan
Airbreathing jet engine designed to provide thrust by driving a fan
airbreathing jet engine that is widely used in aircraft propulsion. The word "turbofan" is a combination of references to the preceding generation engine technology
Turbofan
Produced by a mechanical device whose output rotational speed is zero
to cause stalling. Electric motors, steam engines and hydrodynamic transmissions are all capable of developing torque when stalled. Stall torque is often
Stall_torque
Type of alert system on aircraft
An engine-indicating and crew-alerting system (EICAS) is an integrated system used in modern aircraft to provide aircraft flight crew with instrumentation
Engine-indicating and crew-alerting system
Engine-indicating_and_crew-alerting_system
Computer used for engine control in aerospace engineering
authority digital engine (or electronics) control (FADEC) (/ˈfeɪdɛk/) is a system consisting of a digital computer, called an "electronic engine controller"
FADEC
Power source for starting large engines
initial rotation to start large diesel engines and gas turbines. Compared to a gasoline (petrol) engine, a diesel engine has a very high compression ratio
Air-start_system
Two-propeller design for improving low-airspeed maneuverability
contra-rotation. Power is transferred from a piston powered or turboprop engine via a planetary gear or spur gear transmission. Also known as coaxial contra-rotating
Contra-rotating_propellers
Turbomachinery concept
some or all of the performance degradation of the engine compressor (by preventing rotating stall/choking/reduced flow), as well as that of the complete
Precooled_jet_engine
System that allows a pilot to control thrust without manually setting fuel flow
slower than stall speed, the autothrottle system maintains a speed above the stall speed.[citation needed] In the thrust mode the engine is maintained
Autothrottle
Aircraft gas turbine function
engineering is compressed air taken from the compressor stage of a gas turbine engine, upstream of its fuel-burning sections. Automatic air supply and cabin pressure
Bleed_air
Medium to transfer power in hydraulic machinery
the engines directly, or by electrically driven pumps. In modern commercial aircraft these are electrically driven pumps; should all the engines fail
Hydraulic_fluid
Temporary diversion of an aircraft engine's thrust
Thrust reversal, also called reverse thrust, is an operating mode for jet engines equipped with a thrust reverser when thrust is directed forwards for slowing
Thrust_reversal
Many variations of aircraft engine starting have been used since the Wright brothers made their first powered flight in 1903. The methods used have been
Aircraft_engine_starting
Type of aviation fuel
type of aviation fuel designed for use in aircraft powered by gas-turbine engines. It is colorless to straw-colored in appearance. The most commonly used
Jet_fuel
Type of gearbox used on jet engines
transmissions found in the accessory drives of gas turbine engines, such as aircraft jet engines. On modern aircraft, the CSD is often combined with a generator
Constant-speed_drive
Angle of a blade in a fluid
Pitch control does not need to be active (reliant on actuators). Passive (stall-controlled) wind turbines rely on the fact that angle of attack increases
Blade_pitch
Shock-induced combustion ramjet engine
A shock-induced combustion ramjet engine (abbreviated as shcramjet; also called oblique detonation wave engine; also called standing oblique detonation
Shcramjet
Propeller with blades that can be rotated to control their pitch while in use
of attack. In contrast, a propeller set for good cruise performance may stall at low speeds, because the angle of attack is too high. A propeller with
Variable-pitch propeller (aeronautics)
Variable-pitch_propeller_(aeronautics)
Gas turbine gearbox
accessory drive is a gearbox that forms part of a gas turbine engine. Although not part of the engine's core, it drives the accessories – such as generators,
Accessory_drive
Avionics system developed by Airbus
undertake to correct the problem. ECAM is similar to other systems, known as Engine Indicating and Crew Alerting System (EICAS), used by Boeing, Bombardier
Electronic centralised aircraft monitor
Electronic_centralised_aircraft_monitor
Engine component
engine compressors provide the compression part of the gas turbine engine thermodynamic cycle. There are three basic categories of gas turbine engine
Gas turbine engine compressors
Gas_turbine_engine_compressors
Mechanical device
but it was not generally used on aircraft engines until larger engines were designed in the 1920s. Large engines with high crankshaft speeds and power outputs
Propeller speed reduction unit
Propeller_speed_reduction_unit
Brief description of components needed for jet engines
engines. It uses two example engines; the type most familiar to the general public, the modern airliner engine, and the military afterburning engine.
Components_of_jet_engines
Alternative vehicle power source
starter (JFS) is a device similar to an APU but directly linked to a main engine and started by an onboard compressed air bottle. During World War I, the
Auxiliary_power_unit
Fourth-generation home video game console
Making of the PC Engine". Nintendo Life. Archived from the original on July 30, 2019. Nutt, Christian (September 12, 2014). "Stalled engine: The TurboGrafx-16
TurboGrafx-16
25-500-kW internal combustion engine, typically Brayton cycle-type
335 hp) and are evolved from piston-engine turbochargers, aircraft auxiliary power units (APU), or small jet engines, the size of a refrigerator. Early
Microturbine
Aircraft cockpit with electronic displays
altitude, vertical speed, and engine performance. The Boeing 757 and 767 (-200 and -300) introduced an electronic engine-indicating and crew-alerting system
Glass_cockpit
Turboshaft with power from independent exhaust
free-turbine turboshaft is a form of turboshaft or turboprop gas turbine engine where the power is extracted from the exhaust stream of a gas turbine by
Free-turbine_turboshaft
Aircraft propulsion component
rotary motion from an engine or other power source into a swirling slipstream that generates thrust. A typical propeller engine comprises the motor driving
Propeller_(aeronautics)
Topics referred to by the same term
stall, in jet-engine aviation Stalling (gaming), obstruction of the flow of play while leading in a timed game Pipeline stall, in computing Stallings
Stalling
Jet nozzle at the tip of some helicopter rotor blades
separate engine, to create jet thrust. Other types use a system that functions similarly to the afterburner (reheat) on a conventional jet engine, except
Tip_jet
Aerofoil; individual component of a turbine disc
Each turbine disc has many blades. As such they are used in gas turbine engines and steam turbines. The blades are responsible for extracting energy from
Turbine_blade
Robust aircraft electronic recording device
loss. His patent was for a device for recording audio of pilot remarks and engine or other sounds to be "contained with the in-flight recorder within a sealed
Flight_recorder
1979 aviation accident in Chicago, Illinois
(immediately left of the number-one engine) to retract under air load. The retraction of the slats raised the stall speed of the left wing to about 159
American_Airlines_Flight_191
Simplest known jet propulsion device
such as cruise missiles and target drones. A pulsejet engine is an air-breathing reaction engine that employs an ongoing sequence of discrete combustion
Valveless_pulsejet
Part of a jet engine where fuel is burned
scramjet engine where combustion takes place. It is also known as a burner, burner can, combustion chamber or flame holder. In a gas turbine engine, the combustor
Combustor
Safety system in aircraft
have automatically kept it in level flight in spite of the drag of a stalled engine". In April 1995, FedEx Flight 705, a McDonnell Douglas DC-10-30, was
Flight_envelope_protection
Manual control of the thrust of an aircraft's engines from the cockpit
of the aircraft's engines, by controlling the fuel flow to those engines. Throttle levers are also used on many boats. In multi-engine aircraft, each thrust
Thrust_lever
Group of lights as a status indicator
advanced modern aircraft replaces these with the integrated electronic Engine Indicating and Crew Alerting System or Electronic Centralised Aircraft Monitor
Annunciator_panel
Propellers that rotate on opposite directions
multi-engine propeller-driven aircraft. The propellers on most conventional twin-engined aircraft turn clockwise (as viewed from behind the engine). Counter-rotating
Counter-rotating_propellers
Aviation term for a corkscrew downward path
margin of safety. Certificated, light, single-engine airplanes must meet specific criteria regarding stall and spin behavior. Spins are often entered intentionally
Spin_(aerodynamics)
Nozzle that converts the internal energy of a working gas into propulsive force
engine. Propelling nozzles accelerate the available gas to subsonic, transonic, or supersonic velocities depending on the power setting of the engine
Propelling_nozzle
Type of indicator light in automobiles
2010. "How Do the Engines Breathe in Diesel Submarines?". HowStuffWorks. July 24, 2006. Retrieved October 27, 2016. "Why Does My Car Stall While I'm Driving
Check_engine_light
Engine part
combustion section of a jet engine, to create a local region of turbulence and low velocity in which a flame can remain stable. Jet engine afterburners and ramjets
Flame_holder
Proportion of ducted compared to combusted air in a turbofan engine
The bypass ratio (BPR) of a turbofan engine is the ratio between the mass flow rate of the bypass stream to the mass flow rate entering the core. A 10:1
Bypass_ratio
Display system in an aircraft's cockpit which displays flight information electronically
of a primary flight display (PFD), multi-function display (MFD), and an engine indicating and crew alerting system (EICAS) display. Early EFIS models used
Electronic flight instrument system
Electronic_flight_instrument_system
Combustion engine with a rich air-fuel mixture
fuel. An engine in this condition will not start until the excessively rich mixture has been cleared. It is also possible for an engine to stall from a
Flooded_engine
Fighter aircraft tactical maneuvers not possible using only aerodynamic techniques
However, post-stall analyses have been increasingly used in recent years to advance maneuverability via the use of thrust vectoring engine nozzles. The
Supermaneuverability
Type of jet engine with no moving parts
The Gluhareff Pressure Jet (or tip jet) is a type of jet engine that, like a valveless pulse jet, has no moving parts. It was invented by Eugene Michael
Gluhareff_Pressure_Jet
Engine feature
Autofeather is a feature of the engines on some turboprop and piston engine aircraft. When the power being produced by the engine drops to the point where it
Autofeather
Engine in which fuel combusts with an oxidizer
(compression ignition) engines that run on natural gas. Quenching reduces efficiency and increases knocking, sometimes causing the engine to stall. Incomplete combustion
Internal_combustion_engine
2014 aviation accident in Mali
accretion on the engines caused a reduction of thrust that led to a high-altitude stall. The crew never tried to recover from the stall, and the aircraft
Air_Algérie_Flight_5017
Type of airfoil
aircraft, changing the angle of attack of only the rotor hub, and possibly the engine that drives it, as on a tiltrotor, changing the angle of attack of the entire
Proprotor
Home rule town in Colorado, United States
also begun by Mears, arrived in Telluride, eventually building a two-stall engine house, water facilities, a section house and a bunkhouse, sidings, and
Telluride,_Colorado
2004 aviation accident in Missouri
it subsequently stalled and, due to interrupted airflow, both engines flamed out. The crew failed to execute the proper dual engine failure checklists
Pinnacle_Airlines_Flight_3701
Mississippi Landing became a village. A machine and repair shop and an eight stall engine house were built. It was a company town, equipped with a company office
Swan_River_Logging_Company
Retrieved October 25, 2023. Nutt, Christian (September 12, 2014). "Stalled engine: The TurboGrafx-16 turns 25". Gamasutra. Archived from the original
List of best-selling game consoles
List_of_best-selling_game_consoles
Sub-class of turbomachinery
it may be necessary to increase the stall line due to the system backpressure. For example, at 100% RPM stalling flow might increase from approximately
Centrifugal_compressor
2005 aviation accident in Venezuela
it entered an aerodynamic stall. The crew, probably under the mistaken belief that the aircraft had suffered a double engine flameout, did not take the
West Caribbean Airways Flight 708
West_Caribbean_Airways_Flight_708
Computer that adjusts electronics in an internal combustion propulsion system
engine control unit (ECU), also called an engine control module (ECM), is a device that controls various subsystems of an internal combustion engine.
Engine_control_unit
2015 aviation accident in Taiwan
do so. The loss of engine power during the initial climb and inappropriate flight control inputs by the pilot flying generated stall warnings and activation
TransAsia_Airways_Flight_235
1996 aviation accident in Virginia
by different JT3D-7 engines from ABX Air. Hush kits were installed on all of the engines for noise reduction. The aircraft's stall warning system was tested
Airborne_Express_Flight_827
2023 aviation accident in Nepal
Pokhara in Nepal. On 15 January 2023, the ATR 72 being operated on the route stalled and crashed while landing at Pokhara, killing all 68 passengers and 4 crew
Yeti_Airlines_Flight_691
Standard terms to define airspeeds
the stalling speed with wing flaps in landing configuration, and stalling speed with wing flaps retracted, respectively. These are the stalling speeds
V_speeds
British engineer
work for their compressors. While working on test beds for the Merlin engines, he proposed a variable-speed supercharger, to increase the performance
Geoff_Wilde
Engine fuel systems in aircraft
fuel reaching the engine in case of an engine fire. The second function is to allow the pilot to choose which tank feeds the engine. Many aircraft have
Aircraft_fuel_system
Rotation of helicopter rotors by action of wind resistance rather than engine power
action of air moving up through the rotor, as with an autogyro, rather than engine power driving the rotor. The term autorotation dates to a period of early
Autorotation
Car engine
manifold, high stall torque converter on the Monte Carlo SS and 1984 F-bodies, or a lightweight flywheel on T-5 equipped F-bodies. The L69 engine produced 190 hp
Chevrolet small-block engine (1954–2003)
Chevrolet_small-block_engine_(1954–2003)
Afterburning turbofan engine that powers the F-15 Eagle and F-16 Fighting Falcon
large jets of jet fuel were lit by the engine exhaust resulting in high pressure waves causing the engine to stall; these stagnation stalls usually occurred
Pratt_&_Whitney_F100
southwesterly extension was considered to reach Burro Mountain. A 7-stall engine-house was constructed in anticipation of two more locomotives, but operations
Silver City, Pinos Altos and Mogollon Railroad
Silver_City,_Pinos_Altos_and_Mogollon_Railroad
2005 aviation incident
London. On February 20, 2005, the innermost left engine emitted flames, triggered by an engine compressor stall almost immediately after takeoff. The Boeing
British_Airways_Flight_268
Aerial maneuver
engine used in British fighters was carbureted, and the float valves would malfunction under negative g-force leading to reduced power or a stalled engine
Split_S
Exhaust-powered forced-induction device for engines
In an internal combustion engine, a turbocharger (also known as a turbo or, formerly, a turbosupercharger) is a forced induction device that compresses
Turbocharger
Mixture formation system
fighter's engine did not stall in negative‑G turns, unlike carbureted engines such as the Rolls-Royce Merlin. Conventionally charged engines not only required
Gasoline_direct_injection
Suburb of Tauranga, New Zealand
1929, but by 1932 it was unsafe and being dismantled. By mid 1912 a 2-stall engine shed, coal store and workshops for carpenters and blacksmiths had been
Mount_Maunganui
Computer system for running video games
2021. Retrieved June 9, 2007. Nutt, Christian (September 12, 2014). "Stalled engine: The TurboGrafx-16 turns 25". Gamasutra. Archived from the original
Video_game_console
Business jet in the US
Learjet 25 is an American ten-seat (two crew and eight passengers), twin-engine, high-speed business jet aircraft manufactured by Learjet. It is a stretched
Learjet_25
German airline
[A plane with 34 people crashes in Rimini in a dramatic crash with stalled engines]. La Stampa (in Italian). Turin. p. 1. Harro Ranter (20 July 1970)
Condor_(airline)
2010 aircraft accident in Hong Kong
FAULT" and "ENG 2 STALL" within a short period. The second message signified an engine compressor stall, a potentially serious engine problem. The flight
Cathay_Pacific_Flight_780
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