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In The Cruise Engine Failure Twin Question  
User currently offlineJulianUK From United Kingdom, joined Apr 2006, 105 posts, RR: 0
Posted (10 years 1 week 5 days 20 hours ago) and read 5705 times:

If you are in the cruise and you have an engine failure, especially on a twin, i thought the autopilot and especially the autothrottles were designed to cope with the situation - however i now read that you must disconnect auto throttle as at the high levels of cruise you need to use the throttles manually - which is correct - both Boeing and Airbus pilots contributions please!


3 replies: All unread, jump to last
User currently offlineDavid L From United Kingdom, joined May 1999, 9647 posts, RR: 42
Reply 1, posted (10 years 1 week 5 days 19 hours ago) and read 5697 times:

Quoting JulianUK (Thread starter):
Boeing and Airbus pilots contributions please!

Wot, no MD pilots?

You're not a musician, by any chance, are you?  Smile

User currently offlineVuelingAirbus From Spain, joined Aug 2005, 113 posts, RR: 1
Reply 2, posted (10 years 1 week 5 days 18 hours ago) and read 5675 times:

At least in the Airbus you have to disconnect the Autothrust because of the Autopilot design. If the Airplane is above the Single engine service ceiling it can not maintain its flightlevel on one engine. So you go in open descent (its an Autopilot mode which maintains a selected speed and also reduces thrust to idle) and disconnect Autothrust to have the least possible sinkrate while maintaining speed. At or Below the engine out max altitude the Autothrust can be selected on again...

User currently offlinePilotaydin From Turkey, joined Sep 2004, 2561 posts, RR: 48
Reply 3, posted (10 years 1 week 5 days 16 hours ago) and read 5648 times:

On the Boeing 737 it is recommended that you disconnect the A/P and A/T initially...

Disconnecting the A/T is needed because you need to select Max continous thrust on the good engine and manually advance it to that bug position on the N1 scale. The A/P will disconnect automatically if you are flying A/P A and you lose engine 1, it will kick you off and respectively for B and engine 2. If you apply enough rudder pressure during the fail and trim it out, you can reselect A/P, it is recommended that you use autopilot after you have stabilized the a/c to reduce workload PM/PF. At our airline we must disconnect A/P at 500 ft AGL during a single engine ILS and come in manual

The only time there is too much fuel onboard, is when you're on fire!
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