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227:. Once the engines are confirmed to be stable by the pilot monitoring, the pilots then either press the TO/GA switch, causing the thrust levers to automatically advance themselves to the appropriate power setting (on Boeings), or manually advance the thrust levers to the TO/GA detent (on Airbuses). (In an Airbus aircraft, if
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and it overrides any auto-throttle mode which would keep the aircraft in landing configuration. On Airbus aircraft, it does not disengage the autopilot but causes it to stop following the ILS and to perform the go-around maneuver automatically. In an emergency situation, using a TO/GA switch is often
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is desired, the thrust levers are instead advanced to the FLX/MCT detent.) In all cases, the engine speeds then increase to provide the computed takeoff power. Flight management computers on modern aircraft determine the amount of power needed by the engines in order to reach takeoff speed; a number
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will be set to approach mode, therefore if the TO/GA switch is pressed it will activate the go-around mode of the autothrottle (about 90–92% N1, if pressed again, go around thrust will increase to full (100+% N1); conversely, when takeoff is set on the autopilot, the switch activates takeoff mode of
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length, wind speed, altitude, temperature, humidity, and most importantly the weight of the aircraft. In older aircraft these calculations were performed by the pilots before takeoff. The advantage of having such a system is the ability to reduce wear and tear on the engines by using only as much
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The go-around setting is used during the approach. If a pilot finds that they are unable to land safely, or deems it necessary to go around for any reason, activating this switch (usually positioned on the back of the throttle levers) will increase the power to go-around thrust. If the switch is
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aircraft. Large jet engines accelerate slowly from idle to approximately 40%, and stabilising the engines prior to applying takeoff power prevents a large thrust asymmetry from causing directional problems if one engine accelerates more quickly. This can also reduce the risk of a
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pressed again, the engine power will increase to full thrust. Importantly, the TO/GA switch modifies the autopilot mode, so it does not continue to follow the
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Once an aircraft has lined up on the runway, the pilots first increase the engine power to 40–60%
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http://toulouse747.com/wp-content/uploads/2018/12/Boeing-B737-700-800-900-Operations-Manual.pdf
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178:(GA). The mode is dependent on the phase of flight; usually, on approach to land, the
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aircraft, TO/GA modes are selected by a separate button near the throttle levers; on
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power as is actually required to ensure the aircraft reaches a safe takeoff speed.
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https://www.737ng.co.uk/A320%20321%20FCTM%20Flight%20Crew%20Training%20Manual.pdf
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aircraft, it is activated by advancing the thrust levers forward to the TO/GA
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http://www.smartcockpit.com/docs/A330-A340_Flight_Crew_Training_Manual_1.pdf
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On some aircraft, the TO/GA switch commands the autopilot to fly a
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the quickest way of increasing thrust to abort a landing.
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Controlling Pilot Error: Automation By
Vladimir Risukhin
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of factors have to be taken into account, including
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56:. Unsourced material may be challenged and removed.
262:pattern, if the autopilot is programmed to do so.
400:Better Takeoffs & Landings By Michael C. Love
332:A318/A319/A320/A321 Flight Crew Training Manual.
316:Boeing 737-600/-700/-800/-900 Operations Manual
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345:"Autothrust Operational Aspects", p.2.70.5,
116:Learn how and when to remove this message
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347:A330/A340 Flight Crew Training Manual
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54:adding citations to reliable sources
415:"Boeing 747-441 Operations Manual"
363:"TO/GA Party! How Go-Arounds Work"
314:p. NP.20.31, "Takeoff Procedure",
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210:(low-pressure compressor RPM) on
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330:"Autothrust (A/THR)", p. 5/18,
41:needs additional citations for
417:. Boeing. 2000. Archived from
283:One-Two-GO Airlines Flight 269
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272:Index of aviation articles
65:"Takeoff/go-around switch"
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277:China Airlines Flight 140
248:Instrument landing system
130:takeoff/go-around switch
229:de-rated takeoff power
289:Atlas Air Flight 3591
183:the autothrottle. On
162:) is a switch on the
21:Toga (disambiguation)
50:improve this article
19:For other uses, see
295:Emirates Flight 521
214:aircraft, and 50% N
241:Usage in go-around
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439:Aircraft controls
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164:autothrottle
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48:Please help
43:verification
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252:glide slope
410:, page 192
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373:2020-12-11
302:References
106:March 2009
76:newspapers
367:AeroSavvy
180:autopilot
176:go-around
174:(TO) and
433:Category
402:, 1995,
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388:, 2001,
266:See also
168:aircraft
172:takeoff
90:scholar
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250:(ILS)
234:runway
220:Airbus
212:Boeing
193:detent
189:Airbus
185:Boeing
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134:TO/GA
97:JSTOR
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390:ISBN
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