Search

Notices

For the A350 Gurus

Thread Tools
 
Search this Thread
 
Old 12-13-2017, 03:05 AM
  #1  
Gets Weekends Off
Thread Starter
 
Joined APC: Apr 2013
Position: A350 Captain (RET)
Posts: 149
Default For the A350 Gurus

Good Morning,

For those in the know about the A350 program and it's attributes (or lack thereof), can anyone explain why the dismal reputation this program has?

From those who have attended this "school", it has been shared the LOD is fraught with errors and misinformation and being modified weekly. The life saving grace of the program seems to be the simulator instructors who are dedicated servants trying their best with the tools given to them.

I have spoken with several Line Check Airman who are involved and they quietly share their frustration of a substandard program and one that is "not ready for prime time".

I don't understand why the bottle neck of pumping pilots out. This is NOT the first new airplane brought into service and it seems the leadership never "war gamed" the entire process. It doesn't take a rocket scientist to understand the limitation of FAR 117 and know their Line Check Airman will be timed out in short order.

Why aren't they using this airplane on a domestic segment qualifying pilots before going into the international theater? I am sure the majority if not all of the pilots have flown international and what is to gain from a seasoned veteran traveling the NOPACs? What is the justification of having two check airman on every international leg other than to babysit the nonflying pilot?

I have never understood why Delta remotely thought they could deliver a new A350 without Delta seniority list pilots. Those that made that decision should be embarrassed in having to justify the inadequacy of this program by going outside of this pilot group.

Currently Delta Air Lines is being hammered on Social media regarding the new "Last B747" from Asia. There are several Mega Million Milers who purchased tickets on the original "last B747" only to learn... "not really".

I don't want to sound like a "debbie downer" but from a poor line swine such as me, why all the problems?

Fly safe.. stay warm.

OC
OceanCrosser is offline  
Old 12-13-2017, 04:17 AM
  #2  
veut gagner à la loterie
 
forgot to bid's Avatar
 
Joined APC: Apr 2008
Position: Light Chop
Posts: 23,286
Default

If you've talked to unhappy lca then you know more than us.
forgot to bid is offline  
Old 12-13-2017, 04:28 AM
  #3  
Gets Weekends Off
 
Joined APC: Feb 2008
Posts: 19,599
Default

As far as the portion of your post about unhappy customers there are a bunch who thought they would be on the A350 who are unhappy to be on the 747. As far as the delivery flights I think the company thought they would get a agreement from the union for those three flights. The airframes came early but I hear contractually they had to pick them up. When the union and company could not agree they canceled plans for flight number 2 and 3 forcing the equipment swaps you reference.
As far as trainining I spoke with one person who did the short bus transition course. He feels it was not long enough and the aircraft is very different from the A330.
sailingfun is offline  
Old 12-13-2017, 04:42 AM
  #4  
Line Holder
 
Joined APC: Jan 2014
Posts: 53
Default

Yikes!!!!!

Filler.
hockleypilot is offline  
Old 12-13-2017, 05:17 AM
  #5  
Gets Weekends Off
Thread Starter
 
Joined APC: Apr 2013
Position: A350 Captain (RET)
Posts: 149
Default

Originally Posted by forgot to bid
If you've talked to unhappy lca then you know more than us.

Never said they were "unhappy lca", just they are frustrated and many have been involved with initial cadre positions before.

All the best,

OC
OceanCrosser is offline  
Old 12-13-2017, 05:52 AM
  #6  
Gets Weekends Off
 
notEnuf's Avatar
 
Joined APC: Mar 2015
Position: stake holder ir.delta.com
Posts: 10,456
Default

Originally Posted by OceanCrosser
Good Morning,

For those in the know about the A350 program and it's attributes (or lack thereof), can anyone explain why the dismal reputation this program has?

From those who have attended this "school", it has been shared the LOD is fraught with errors and misinformation and being modified weekly. The life saving grace of the program seems to be the simulator instructors who are dedicated servants trying their best with the tools given to them.

I have spoken with several Line Check Airman who are involved and they quietly share their frustration of a substandard program and one that is "not ready for prime time".

I don't understand why the bottle neck of pumping pilots out. This is NOT the first new airplane brought into service and it seems the leadership never "war gamed" the entire process. It doesn't take a rocket scientist to understand the limitation of FAR 117 and know their Line Check Airman will be timed out in short order.

Why aren't they using this airplane on a domestic segment qualifying pilots before going into the international theater? I am sure the majority if not all of the pilots have flown international and what is to gain from a seasoned veteran traveling the NOPACs? What is the justification of having two check airman on every international leg other than to babysit the nonflying pilot?

I have never understood why Delta remotely thought they could deliver a new A350 without Delta seniority list pilots. Those that made that decision should be embarrassed in having to justify the inadequacy of this program by going outside of this pilot group.

Currently Delta Air Lines is being hammered on Social media regarding the new "Last B747" from Asia. There are several Mega Million Milers who purchased tickets on the original "last B747" only to learn... "not really".

I don't want to sound like a "debbie downer" but from a poor line swine such as me, why all the problems?

Fly safe.. stay warm.

OC
New airplane + old pilots + BA to AB brain reboot + self taught = frustration (is what i'm hearing)
notEnuf is offline  
Old 12-13-2017, 06:15 AM
  #7  
Gets Weekends Off
 
Joined APC: Sep 2006
Posts: 1,233
Default

Some of the frustrations come from pilots who for 25 years flew Boeing, let their brain slow down, expected to be bypassed and/or call in sick for the last two years of their careers, etc.

But when they come to training program mirrored after all other footprints and expect to talk about such injustice for the first 30 minutes of every briefing - it's downhill from day one.

It is nothing unexpected and resources are available - just request a repeat if you need one, they are build in, there is even module 300.
Lifeisgood is offline  
Old 12-13-2017, 04:26 PM
  #8  
Gets Weekends Off
 
Joined APC: Nov 2011
Posts: 4,535
Default

I’d say as a broad generalization most of these guys are 60+, haven’t been to a new fleet training in quite some time, and aren’t used to the approach we take for distance learning.
tunes is offline  
Old 12-13-2017, 06:26 PM
  #9  
veut gagner à la loterie
 
forgot to bid's Avatar
 
Joined APC: Apr 2008
Position: Light Chop
Posts: 23,286
Default

Originally Posted by tunes
I’d say as a broad generalization most of these guys are 60+, haven’t been to a new fleet training in quite some time, and aren’t used to the approach we take for distance learning.
Lifeisgood probably has it nailed. 25 years on one Boeing fleet coming to Airbus on a semi self taught program is tough.

Here. I'll make it simple:

The flight control law is basically the relationship between the pilot's input on the side stick and the resulting aircraft or flight control surface response.
There are 3 flight control laws Normal Law, Alternate Law and Direct Law



As a general rule, normal law deals with single failures of a system and alternate law deals with double failures.

Within Normal Law we have three sub categories,

Ground Mode
Flight Mode
Flare Mode

Ground Mode was designed to make the aircraft behave more naturally when rotating at liftoff. The relationship between the side stick and the aircrafts response is much more like a conventional aircraft.
For pitch control - there is a direct relationship between Side stick deflection and elevator deflection. Once the aircraft reaches 75kts the maximum elevator deflection is reduced from 30 degrees to 20 degrees. If we haven't manually set a trim position using the trim wheel then the THS or trimmable horizontal stabiliser will automatically set to 0.
For lateral control - The side stick demands aileron and spoiler deflection as opposed to a roll rate but its not a direct relationship, the amount of deflection is dependant on the aircraft speed. As a extra bit of information for you, only spoilers 2 to 5 and the ailerons are used for roll. The rudders being a mechanical linkage aren't affected so you just have to remember that they become more sensitive the faster you go. There are no protections at all when in ground law.

Flight Mode
The aircraft will then start to blend smoothly from ground mode into flight law once the pitch attitude reaches 8 degrees. In roll this takes half a second and for pitch it takes five seconds.
There's a good graphic in the FCOM with this information on. Its in
Descriptions - Flight Controls - Flight control System - Normal Law - General



once the aircraft has been airborne for more than 5 seconds we are then in flight mode. This is obviously the one we are exposed to 99% of the time we are operating. As we mentioned a minute ago, normal law keeps us within the aircraft envelope and prevents us from doing manoeuvres that could potentially endanger the flight. It also gives the aircraft certain characteristics when manually flying.
In pitch the sidestick demands a load factor as opposed to an elevator deflection. So an input on the sidestick will give a pitch rate at low speed or a g-load at high speed. This is designed to give an aircraft response that the pilot would naturally expect. One of the first things you notice about the Airbus is the lack of trimming which is for me one of the best features. Therefore if there is no input on the stick the aircraft will maintain its flightpath even if the speed changes. In fact even if you change the thrust or the configuration, the aircraft will compensate for the pitching moments. This makes manual flying very easy and frees up lots of capacity.
With Roll, Again, unlike a conventional aircraft, lateral inputs on the side stick don't demand aileron deflection directly. They demand a roll rate and full side stick deflection will demand 15 degrees per second.
Just like with pitch, the aircraft will auto trim so the bank angle will be maintained when you let go of the stick up to 33 degrees, and will also automatically provide a pitch compensation and perform a coordinated turn using yaw. The maximum bank angle the aircraft will allow you to do is 67 degrees.
Beyond 33 degrees, the aircraft won't auto trim and if the side stick is then released it will return back to 33 degrees. In addition to this, above the 33 degrees, spiral stability is introduced and pitch compensation isn't available. The reason they've written this into the software is because there is no reason to fly at such high bank angles for a prolonged period.

Protections

Angle of Attack -
Autopilot out at Alpha prot, then from Alpha prot to alpha max side stick demands Alpha directly. Alpha floor trigger TOGA thrust and speed continues to decrease until we get back to Alpha max which the speed won't go below.

Load Factor -
+2.5G to -1G clean
+2G to 0G in any config other than clean

Pitch Attitude-
-15 degrees all configs
+30 degrees config 1, 2 and 3
+25 degrees config Full

High Speed Protection-
Autopilot out at VMO/MMO, master caution and overspeed ECAM at VMO/MMO +4 kts, then at VMO/MMO +6 kts, pitch trim is frozen, max bank angle is reduced and a nose up demand is triggered.

Bank Angle -
Max 67 degrees
Reduced to 45 degrees in Alpha protection and 40 degrees in high speed protection
Side stick pressure required to maintain bank angles greater than 33 degrees unless in high speed protection when its zero.



Alternate Law is generally for situations where there has been a double failure of a system which results in either lack of redundancy or integrity of the protections found in normal law. Auto pilot and auto thrust are still available.
You can get alternate law with protections and alternate law without protections.
With protections - has the following characteristics and protections,

Load Factor still has the same protections as normal law (+2.5G to -1G clean and +2 to 0G configured).

Pitch has no protections, the green equals symbols are replaced by amber ones.

Roll is now a direct stick-to-surface relationship. To help reduce the roll rate, in alternate and direct law only ailerons and spoilers 4 & 5 are available. As a note, if spoiler 4 has failed number three will replace it and if the ailerons have failed, all roll spoilers (2 to 5) become available. There are no bank angle protections and the green equals signs are replaced by amber crosses.
Yaw control, as its a mechanical linkage isn't changed although only yaw damping is available.

Angle of Attack protection is no longer available and is now replaced by low speed stability. It's available for all configurations and is active from 5 to 10 knots above the stall speed. Somewhere in this range (as it depends on weight and config) a gentle nose down signal is introduced but this can be overridden. The speed scale now shows VLS followed by a black and red barber pole below V Stall Warning. At V Stall Warning, you get....... the stall warning! which is the words STALL STALL STALL repeated until the speed is back above V stall warning. With this you will also get the associated master warning. The warning can't be cancelled by pressing the master warning button on the glareshield Its important to remember that the aircraft can be stalled.

High Speed Protection is replaced by high speed stability instead. The speed tape looks the same and has the same warnings and sounds as normal law. The only difference is that there's no protection to stop the overspeed. Instead we have a nose up demand from the aircraft but this can be overridden. It's worth noting that VMO is reduced from 350 to 320 knots. I was once asked by a trainer what speed would I select for an emergency descent. There's no right answer here but he said he always selects 320kts because if then for some reason you go into alternate law, you won't have an overspeed to deal with on top of everything else which I thought was a good little tip.

Alternate law with protections lost is the same as alternate law but you don't get the high speed and low speed stability. So basically you only have the load factor limitation which I'll say again as repetition is the key to remembering things, +2.5 to -1G clean and +2 to 0G in any other config.

Alternate law then automatically downgrades to Direct Law when the landing gear is selected down.
Once in Direct Law, all protections and stabilities are lost. We are now essentially flying a conventional aircraft. Pitch now joins Roll and Yaw in having a direct stick-to-surface relationship. Overspeed and stall warnings are still exactly the same as Alternate Law.

The most noticeable difference when going into direct law is the lack of autotrim. 'USE MAN PITCH TRIM' is displayed in amber on the PFD. This is why many of the procedures advise taking flap 3 before gear down if flap 3 is the landing config because then the autopilot will get the aircraft correctly trimmed before it has to be done manually. Any trim adjustments will have to be made using the trim wheels either side of the thrust levers.

simple right.?

Read more at http://a320podcast.libsyn.com/category/flight+controls#qfdYJo6I48PezrME.99
forgot to bid is offline  
Old 12-13-2017, 08:05 PM
  #10  
Line Holder
 
Joined APC: Jan 2016
Posts: 43
Default



But hey, what do I know, I just fly the MD88!
SimWorld is offline  
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
The 99s
Safety
7
12-17-2015 12:18 PM
jsled
United
23
06-13-2013 06:50 AM
vagabond
Technical
3
09-06-2007 02:51 PM
Sir James
Hangar Talk
1
10-10-2005 03:32 PM

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On



Your Privacy Choices