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.

Filter by
Sorted by
Tagged with
0
votes
1answer
44 views

What indication will appear in case of one of A320 LGCIU is inoperative?

What indication and where it will appear in case of one of LGCIU (landing gear control and interface unit) is inoperative?
3
votes
1answer
252 views

Does the auto thrust at takeoff compensate for asymmetric engine characteristics?

When a percentage thrust has been determined for take off the auto thrust system (Airbus) or the auto throttle (Boeing) will send the data to the engines FADECs to provide the required thrust. When ...
3
votes
2answers
180 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 ...
1
vote
3answers
109 views

How to apply the TO/GA time and EGT limits?

If there is a published 1) EGT limit and a 2) TO/GA time limit, which one should be applied when the EGT is well below the EGT limit and possibly even below the 'max continuous' EGT. Particularly with ...
3
votes
2answers
699 views

Airbus A320 automatic speed mode protection in SRS vertical mode

According to the A320 FCOM, capter 22 auto flight, flight guidance, the "automatic speed mode protection" of the auto flight system of the A320 disengages the flight directors upon reaching current ...
7
votes
2answers
625 views

Can autothrottle be used without autopilot (and vice versa)?

In commercial passenger aircraft: Can autothrust be used with A/P disabled ? And can A/P be used without using autothrust? Citable references very welcome! If the question depends on a specific ...
1
vote
1answer
212 views

Can thrust be selected manually in a plane with autothrust? If yes, how?

I'm getting into the autothrust world and I have the question of whether it would be possible to disengage it and select the thrust manually in a plane that already has autothrust. How could it be ...
3
votes
1answer
3k views

What is TOGA LK in Airbus 320? How to come out of TOGA LK?

What is TOGA LK in Airbus 320? How to come out of TOGA LK? I see it comes in Windshear Escape Manoeuvre. How is it related to Alpha Floor.
1
vote
3answers
217 views

What is a “flare-out” and why does auto-thrust reduce thrust during flare-out?

The functions of auto-thrust include thrust reduction during a flare-out. What is flare out and why during flare out will the auto-thrust reduce thrust?
5
votes
1answer
5k 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
votes
2answers
1k 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
7k 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 ...
3
votes
1answer
3k views

What is Auto-thrust?

I have heard about auto-thrust yet I still don't know what it is. Can someone please explain to me what it is? I know that I can just Google this up, but I was hoping that a community which revolves ...
4
votes
3answers
1k views

Can autothrust keep the plane aligned with the runway during crabbing?

I'm not talking about the entire auto pilot system, but only the thrust. Because I think, when experiencing crosswind during landing, the speed of wind may fluctuate and on 3 digit approach altitudes ...
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 ...
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 ...
10
votes
2answers
3k views

Why do most propeller-powered planes not have an autothrottle?

Why does every kind of propeller-powered plane lack an auto-throttle? No single-props no twin-props, not even turboprops like the Dash-8 Q400. To be honest, I don't know many turboprops, but if the ...
3
votes
3answers
2k views

Which computer controls auto thrust on an Airbus A320?

An Airbus A320 has seven computers that control flight surfaces: two ELAC, three SEC, two FAC, and two AP (autopilot) computers. Is there an separate computer that controls auto thrust, or is this ...