Questions tagged [autothrust]

An autothrottle (automatic throttle) allows a pilot to control the power setting of an aircraft's engines by specifying a desired flight characteristic, rather than manually controlling the fuel flow.

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1answer
6k views

Is there a specific formula or way to calculate flex temperature for an Airbus A320?

I have hear of RTOW charts but I haven't seen any calculations with the runway length or slope. What is the formula or equation to finding flex temperature and V-Speeds?
13
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2answers
2k views

Would an A320 override the autothrottle due to an erroneous radio-altimeter?

The pilots of Turkish Airlines Flight 1951 had multiple issues with the auto-throttle setting itself to idle during approach: despite manually adding throttle, the plane stalled and crashed before ...
7
votes
2answers
9k views

What determines the “acceleration” and “thrust reduction” heights?

Thrust reduction height is the height at which automatic thrust reduction from takeoff thrust to climb thrust happens. And acceleration height is the height at which you start accelerating the plane ...
16
votes
3answers
3k views

How do pilots set the exact amount of thrust needed for a reduced power takeoff?

I know jet-powered airplanes very rarely use 100% available power for takeoff, and most often reduce power to increase engine life. How does a pilot set thrust to an exact level? The airplanes I'm ...
6
votes
1answer
4k views

What mode is the Boeing 777's autothrottle in right after touch down?

This question came to my mind when I saw the Emirates B773 (Dubai on Aug 3rd 2016) accident. I saw a couple of 777 cockpit videos and I saw that autothrottle (A/T) is widely used during landing and ...
3
votes
2answers
205 views

Do modern aircraft automatically manage the deceleration to Vref?

Typically in most aircraft, the pilot manually reduces the speed gradually until reaching the landing zone/flare zone. Modern aircraft have FMC. Does the FMC automatically manage the speed gradually ...