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-   -   Your airline policy on flying with A/T off (https://www.pprune.org/tech-log/598851-your-airline-policy-flying-t-off.html)

extricate 27th Aug 2017 10:55

Your airline policy on flying with A/T off
 
Hi,

Just curious. What is your company policy on flying manual with A/T off?

agg_karan 27th Aug 2017 11:32

We have 4 levels of automation.
Level one is hand flown / raw data/a-thr off.
Level two is handflown / a-thr / FD
level three is A/p / A-Thr / basic modes.
Level four is LNAV/VNAV/AP/ATHR

Pilots must be aware that consistent use and reliance on automation levels 3 and 4 throughout the flight regime will degrade basic flying skills. Therefore, pilots must continue to maintain proficiency by using all levels of automation on a regular basis, keeping in view the following:

§ Workload
§ Weather conditions
§ Fatigue factor
§ Traffic
§ Experience level of Flight Crew
§ In accordance with company policy and procedure.

safelife 27th Aug 2017 12:17

European large charter carrier: up to the pilot, manual thrust encouraged to at least be trained
European small charter carrier: auto thrust is standard, manual only by captains approval.
China: disconnect it ever and make everyone freak out. Except maybe the most seasoned check airmen.

CaptainMongo 27th Aug 2017 13:26

Our airline (US based large) encourages hand flying in an appropriate environment. Clear day, not a lot of traffic, smaller airport, turn everything off including FD. I encourage the line pilots I fly with to hand fly. By the third of fourth flight in the course of line training and landings are progressing well, I have the trainee fly the approach and land using manual thrust. Most certainly by the end of line training he or she will have accomplished several manual thrust landings.

Vessbot 27th Aug 2017 13:57

Easy, we don't have autothrottles in the CRJ.

extricate 27th Aug 2017 15:03

Interesting, keep the replies coming.

Just felt by flying with A/T off, you are more "one" with the aircraft, airlines should encourage it more given all the talks about maintaining flying proficiency

B2N2 27th Aug 2017 19:15

Autopilot off means auto-throttle off.
Company ( and Boeing) recommends against mix 'n match on automation.

macdo 27th Aug 2017 19:24

Ap on - Athr Off is non standard for Airbus. Acceptable for certain failure cases.
Ap off -Athr On or Ap and Athr off is acceptable

B737C525 27th Aug 2017 20:16

On the Boeing: no restriction on AP off in reasonable circumstances, AT always off with AP off. Some raw data on the line, again, when reasonable.

Business jets: manual thrust on the types we operate.

I brief the manual veto, do others do so?

skkm 28th Aug 2017 02:27

777, A/T use is "recommended during all phases of flight," including manual flight – but manual thrust is permitted.

vilas 28th Aug 2017 03:41

Pilot must have the ability to fly approaches with manual thrust and no FD. It is to develop a scan pattern with hands doing the required changes to thrust or flight path. In Airbus this training is imparted in Jet orientation or Entry Level Traning as Airbus calls it.Some rapidly expending airlines may not encourage it on line but they should allow it at least selectively with experienced crew. Otherwise the skill will degrade and a simple visual approach even with auto throttle can end up in a disaster like SFO.

Check Airman 28th Aug 2017 05:00

Better a cowboy who can fly than a pilot who can't.

EDDT 28th Aug 2017 05:07

Every approach at Lufthansa is flown and landed with manual thrust (Airbus) or Manual throttle (Boeing).

Raw data is up to pilot's discretion. Of course common sense about environmental conditions is applied for Raw Data / no flight director.

Except in CAT2/3 autoland, a landing with ATHR is not permitted.

The rule of *Manual flight - manual thrust* was introduced after hard landings on A340 fleet in the 90s I think.

tdracer 28th Aug 2017 08:08

Several years ago, we were having some issues getting the FADEC and the A/T to play nice together. I told the flight test pilot everything worked fine but the A/T, just use manual throttle.
He rather pointedly told me he wasn't going to accept the airplane without a functional A/T, so fix it then get back to him....

Skyjob 28th Aug 2017 08:58

Though recommended to use AT during TO/CLM on our fleet I prefer this recommendation to be revised so crew learn to use thrust in favour of controlling it with V/S during climb stages, why set a rate and let AT do it for you when hand flying, sort of beats the purpose of hand flying imho...

Previous outfits: all on or all off, except as aiding in the setting of takeoff power initially.

overstress 28th Aug 2017 10:50

All 747-400 visual landings are flown in manual thrust. LVPs are auto throttle if available.

Centaurus 28th Aug 2017 11:58


but they should allow it at least selectively with experienced crew
Do you mean you have to be "experienced" before you are allowed to fly without all the automatic goodies? Sounds like a weird policy. I would have thought the accent should be on allowing the inexperienced pilots the opportunity to fly without automatics.

CaptainMongo 28th Aug 2017 20:09

Below is a link of an article regarding mixed mode flying:

http://aviationsafetyconsultant.com/.../MixedMode.pdf

On the Bus mixed mode flying does not present the issues a non FBW aircraft can, however I still avoid mixed mode flying - personal preference. Our younger pilots seem to fly mixed mode regularly which is a preference as well.

underfire 28th Aug 2017 20:23

If I remember correctly, some airlines (such as AirAsia) ONLY allow autopilot/autothrottle below 4000 feet.

Would be curious to know others.

Vessbot 28th Aug 2017 20:30


Originally Posted by Centaurus (Post 9875170)
Do you mean you have to be "experienced" before you are allowed to fly without all the automatic goodies? Sounds like a weird policy. I would have thought the accent should be on allowing the inexperienced pilots the opportunity to fly without automatics.

My thought exactly. You might be as stunned as I was when I tell you what I was told by one Captain, when I had just over 100 hours at the airline. When I announced that the autopilot's coming off, he made me keep it on. On a clear and calm day, at FAF attitude, on base. Moderately busy traffic. "You don't have enough time in the airplane yet". To do 90 degrees of turning in level flight.


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