Search found 333 matches

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by Flow2706
Tue Jun 07, 2022 12:14 pm
Forum: Technical/Operations
Topic: Widebody vs Narrowbody Cruise Speeds
Replies: 25
Views: 3439

Re: Widebody vs Narrowbody Cruise Speeds

The total start time of an A320NEO with PW1100 engines with dual cooling function is only marginally longer than the total start time of CEO aircraft with IAE engines. I don't think that this marginally longer start time is a major factor, except in extraordinary circumstances (i.e. out of the dual ...

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by Flow2706
Fri May 06, 2022 12:18 pm
Forum: Civil Aviation
Topic: A350 flight control airworthiness directive
Replies: 20
Views: 7058

Re: A350 flight control airworthiness directive

Im not an engineer, but ADs are quite common for all aircraft types. I don’t think this is a critical issue, a fix will be developed and rolled out on the fleet. Most of the safety risks addressed by ADs are quite unlikely, but the application of the AD is still necessary to maintain the high level...

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by Flow2706
Fri May 06, 2022 12:05 pm
Forum: Civil Aviation
Topic: A350 flight control airworthiness directive
Replies: 20
Views: 7058

Re: A350 flight control airworthiness directive

Im not an engineer, but ADs are quite common for all aircraft types. I don’t think this is a critical issue, a fix will be developed and rolled out on the fleet. Most of the safety risks addressed by ADs are quite unlikely, but the application of the AD is still necessary to maintain the high level ...

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by Flow2706
Tue Apr 26, 2022 4:49 pm
Forum: Civil Aviation
Topic: DL to start paying F/As during boarding
Replies: 135
Views: 20098

Re: DL to start paying F/As during boarding

In Europe it is similar in most companies, pilots and cabin crew usually get paid a basic salary (which should cover boarding, postflight duties etc) and a pay per block hour (I.e. brake off to brake on). There are some variations to this some companies pay a big basic salary but no compensation for...

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by Flow2706
Tue Apr 05, 2022 5:36 am
Forum: Technical/Operations
Topic: Curious: BA Takeoff Procedures - Gear Retraction
Replies: 39
Views: 6218

Re: Curious: BA Takeoff Procedures - Gear Retraction

It’s to cool the brakes. I’ve seen Airbus narrow bodies do it also and they even cooling fans that are used in the ground. Brake fans are an option on the A330. I think the same on the A32x. I can confirm that. My company doesn’t have brake fans on A320/321s but still does short (35-40 minutes) tur...

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by Flow2706
Sat Apr 02, 2022 7:05 am
Forum: Technical/Operations
Topic: Altitude of the static 6g maneuver?
Replies: 13
Views: 1974

Re: Altitude of the static 6g maneuver?

Airliners are usually certified for +2.5/-1gs (this number comes from a regulation as well but I’m too lazy to look up the exact reference now), not to +6. So the test has to be performed up to 2,5 x 1,5 (safety factor) = 3,75g. For obvious safety reasons this test is not performed inflight but on t...

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by Flow2706
Sun Mar 20, 2022 3:04 pm
Forum: Technical/Operations
Topic: SOP pilot call-out differences?
Replies: 13
Views: 3044

Re: SOP pilot call-out differences?

There is a lot of difference between aircraft types, even though Boeing and Airbus are trying to keep the callouts similar within their products. Just for example during takeoff, on Airbus the speed check/call out is done at 100kts, on Boeing it's done at 80kts. The call after liftoff is "posit...

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by Flow2706
Sat Mar 12, 2022 1:11 pm
Forum: Civil Aviation
Topic: Russian Aircraft Lease Return/Repo Thread
Replies: 176
Views: 50235

Re: Russian Aircraft Lease Return/Repo Thread

I can't believe there exists so huge pile of rubles or any other currency in Russia that does not have 1000 times better and more urgent use for something else than buying a bunch of civilian planes even at a huge discount which actually will not be that huge discount as it still requires massive a...

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by Flow2706
Sat Mar 05, 2022 6:56 am
Forum: Technical/Operations
Topic: Installing/ Uninstalling ETOPS On An Aircraft
Replies: 56
Views: 7118

Re: Installing/ Uninstalling ETOPS On An Aircraft

Can’t talk about the 737 but in the most difficult part is getting ETOPS approval as an operator. Manuals have to be amended, crews and other personal have to be trained and also some sort of operational demonstration (number of flights carried out according to ETOPS procedures) carried out. Modifyi...

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by Flow2706
Thu Feb 24, 2022 7:09 am
Forum: Technical/Operations
Topic: Iraq Overflights
Replies: 4
Views: 1963

Re: Iraq Overflights

The company I work for has some overflights of that region. I didn’t operate these routes yet personally, but our last simulator session had a LOFT scenario that - at least in my session - led to a diversion to Erbil. As the terrain in that region is quite high and possibly limiting for the depressu...

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by Flow2706
Mon Feb 07, 2022 2:47 pm
Forum: Technical/Operations
Topic: How common is 3800-4200 fpm descent?
Replies: 9
Views: 1884

Re: How common is 3800-4200 fpm descent?

Normal descend rates at normal speeds without speed brakes are around 2500 (high level) to around 1500/1800fpm (below around FL100), but for profile adjustments rates up to 6000/6500 are achievable in normal operations. Could be due to unexpected track shortening, last minute runway change etc.

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by Flow2706
Fri Jan 21, 2022 12:44 pm
Forum: Technical/Operations
Topic: DE-icing while idle
Replies: 10
Views: 3229

Re: DE-icing while idle

It's allowed and done in many airports, for example Munich.

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by Flow2706
Mon Jan 17, 2022 7:13 am
Forum: Technical/Operations
Topic: Airliner ferry
Replies: 10
Views: 2113

Re: Airliner ferry

Most ferry flights in airline operations are done by regular crews (positioning the aircraft to an other base after a diversion/to/from maintenance). Sometimes they are also done by technical pilot/management pilots, depending on the nature of the flight (for example when taking a new plane from the...

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by Flow2706
Fri Jan 14, 2022 5:02 pm
Forum: Technical/Operations
Topic: RTO for impending fire
Replies: 59
Views: 4806

Re: RTO for impending fire

Classically, there are only two things: complete loss of thrust in at least one engine and actual fire. Do You really know any other? We practiced compressor stall at takeoff and on one sim we got a tire burst around V1. This was very tricky as we rarely ever practice this and initially it's very e...

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by Flow2706
Fri Jan 14, 2022 3:07 pm
Forum: Technical/Operations
Topic: RTO for impending fire
Replies: 59
Views: 4806

Re: RTO for impending fire

On the A320 I would not reject in this scenario. A high speed RTO at more than 100kts can be hazardous due to the potential for an overrun and there are just very few defined failures that will lead to an RTO in this situation. Also, the human brain is not capable of noticing and processing a single...

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by Flow2706
Thu Jan 06, 2022 5:44 am
Forum: Technical/Operations
Topic: Does moving from the A32x to the A32xNEO require differences training?
Replies: 9
Views: 2311

Re: Does moving from the A32x to the A32xNEO require differences training?

Slightly off topic but how much difference training is required between an A32X aircraft flown with the CFM International engines versus the IAE VS engines (assuming CEO A32X)? I don’t remember doing any difference training for CFM/IAE but maybe it was already included in the type rating. The diffe...

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by Flow2706
Mon Jan 03, 2022 6:17 pm
Forum: Technical/Operations
Topic: Does moving from the A32x to the A32xNEO require differences training?
Replies: 9
Views: 2311

Re: Does moving from the A32x to the A32xNEO require differences training?

Yes, they are only variants, it's only CBT training. In my current company we have A320/321/CEO/NEO, so far I haven't flown the NEO yet but I did the CBT and I am therefore allowed to fly the NEO if it shows up on my roster. I heard the takeoff and landing are a bit different due to an updated rotat...

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by Flow2706
Fri Dec 24, 2021 1:26 pm
Forum: Technical/Operations
Topic: Do airliners still fly landing patterns?
Replies: 4
Views: 1708

Re: Do airliners still fly landing patterns?

It’s really depending on the operator, destinations and kind of operation. I used to fly for an European company that did mostly holiday charter flights. If the weather and traffic situation was acceptable I often requested visual approaches (following the prescribed pattern) in the Canary Islands, ...

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by Flow2706
Thu Nov 11, 2021 7:30 am
Forum: Technical/Operations
Topic: Survey: Visual Descent Point
Replies: 10
Views: 2064

Re: Survey: Visual Descent Point

Very interesting to read that some airlines are not certified to fly conventional NPAs. In my career so far I have been working for four different companies in Asia and Europe so far and conventional NPAs, even though mostly flown as RNAV overlays (and as CDFAs, I.e. without the level off at MDA), a...

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by Flow2706
Tue Nov 02, 2021 8:50 pm
Forum: Technical/Operations
Topic: Use of rudder in commercial aircraft
Replies: 18
Views: 2457

Re: Use of rudder in commercial aircraft

There is actually a big note in the Airbus FCTM regarding the use of rudder. It emphasises that the rudder should only be used during takeoff/landing/crosswind landings (to Decrab) and engine failures and few rare failures, f.e. rudder trim runaway (to return the rudder to the centered position). Th...

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by Flow2706
Tue Oct 26, 2021 10:46 pm
Forum: Technical/Operations
Topic: Can flaps be used to slow an aircraft or only to allow it to fly safely at slower speeds?
Replies: 18
Views: 1755

Re: Can flaps be used to slow an aircraft or only to allow it to fly safely at slower speeds?

As mentioned before, it's really depending on the aircraft type. On the A320 (and I think on most other large airplanes as well) flaps will definitely increase drag and could be used to slow down from a purely aerodynamic point of view. However flap wear increases by *a lot* when extending the flaps...

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by Flow2706
Tue Oct 19, 2021 9:43 am
Forum: Technical/Operations
Topic: EasyJet A321 flew out-of-balance after seated for A320
Replies: 13
Views: 3028

Re: EasyJet A321 flew out-of-balance after seated for A320

I always thought that on Airbus FBW aircraft, you just command a roll or pitch rate with the sidestick (at least in normal law). But in that case (wrong CG) you wouldn't feel a difference when rotating, since the FBW would just command more elevator to achieve the pitch change/rotation. The devil i...

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by Flow2706
Sat Oct 16, 2021 7:44 am
Forum: Technical/Operations
Topic: EasyJet A321 flew out-of-balance after seated for A320
Replies: 13
Views: 3028

Re: EasyJet A321 flew out-of-balance after seated for A320

CG's going to be a little north of where it should be, so your stab trim would be significantly off. Uncomfortable, sure, might be a bit sluggish on the rotation, but unless you're operating at the edge of the takeoff envelope it's not great but it's not going to kill you unless you're not paying a...

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by Flow2706
Sun Oct 10, 2021 7:40 am
Forum: Technical/Operations
Topic: Could flap operation be automated?
Replies: 18
Views: 2048

Re: Could flap operation be automated?

While Airbus does not have automatic flaps it can do something similar during the approach: it can automatically reduce to maneuvering speed for the current flap setting (if the speed is in "managed" mode while the FMGC is in approach phase), so it's possible not to touch the speed knob du...

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by Flow2706
Sun Oct 03, 2021 5:32 pm
Forum: Technical/Operations
Topic: Which airliners are able to use APU while airborne?
Replies: 10
Views: 1807

Re: Which airliners are able to use APU while airborne?

On the A320 APU can be started and run up to the service ceiling (39800ft or 39100ft, except for some ACJs). The generator can be used at altitude as well, it has the same rating as the engine generators. APU bleed usage is limited to around 20000 or 22000ft (depending on APU type) and APU bleed may...

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by Flow2706
Mon Sep 13, 2021 10:13 pm
Forum: Technical/Operations
Topic: In revenue service, could the DC-10 land without using reverse thrust?
Replies: 22
Views: 2863

Re: In revenue service, could the DC-10 land without using reverse thrust?

3 installed, 2 required. One can be put on MEL. But, as Starlionblue indicated, the aircraft are certified to stop without their use. Can the AC be dispatched with either #1 or #3 inop? How many airliners have thrust reverse on MEL for dispatch? Or does this vary by the conditions for a given fligh...

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by Flow2706
Wed Sep 01, 2021 3:17 pm
Forum: Technical/Operations
Topic: What are the red ECAM messages on Airbus planes?
Replies: 17
Views: 3023

Re: What are the red ECAM messages on Airbus planes?

which makes me wonder... is that in any way customizable between customer and Airbus? I.e. "our SOP is to land with Autobreak armed, can we can a warning for that?". Not just for autobreakes of course, but are warning conditions OEM only decisions or can Airlines tailor those? best regard...

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by Flow2706
Tue Aug 24, 2021 2:07 pm
Forum: Technical/Operations
Topic: Pilot schedluing/"bidding" at European full service airlines?
Replies: 10
Views: 1764

Re: Pilot schedluing/"bidding" at European full service airlines?

There are different kinds of bidding systems in place in European airline. I mostly flew for smaller companies, there was no real bidding system (in one ACMI company you could try to ask the company to assign you a specific base for a couple of months, but no specific flights). The "bigger"...

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by Flow2706
Sun Aug 22, 2021 2:22 pm
Forum: Technical/Operations
Topic: Weight conversions to imperial/metric for 'used' aircraft- how does it work?
Replies: 14
Views: 1458

Re: Weight conversions to imperial/metric for 'used' aircraft- how does it work?

On the aircraft side, it is not a big change. I'm not an engineer, but it may even be possible to change the aircraft from kg to lbs (or vice versa) without any hardware change. Paperwork may be more of an issue. In one of my previous companies most of the fleet was using the metric system, however ...

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by Flow2706
Tue Aug 10, 2021 7:45 am
Forum: Technical/Operations
Topic: A320 Wingtip strobes
Replies: 19
Views: 2847

Re: A320 Wingtip strobes

The strobe light switch has three settings: OFF, AUTO and ON. On and Off are self-explanatory, Auto will activate the strobes at lift off. Airbus SOP is to turn on the strobe lights when entering the runway, during ground operations they are left in Auto. Probably the Frontier crew forgot to turn th...

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by Flow2706
Sat Aug 07, 2021 2:20 pm
Forum: Technical/Operations
Topic: A320neo small differences/updates (+FLS&GLS Questions)
Replies: 6
Views: 1410

Re: A320neo small differences/updates (+FLS&GLS Questions)

Never flown the NEO, but the MORA on ND option has been there already when I started flying on the Airbus back in 2010, so it's not a new option.

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by Flow2706
Tue Aug 03, 2021 9:17 pm
Forum: Technical/Operations
Topic: Can severe turbulence damage avionics in the E&E bay?
Replies: 12
Views: 1876

Re: Can severe turbulence damage avionics in the E&E bay?

There was one case where a bleed air duct detached during a severe turbulence encounter. However, it was determined that the connector was not secured correctly to beginn with and it would have shaken loose anyway, possibly a bit later: http://www.bst-tsb.gc.ca/eng/rapports-reports/aviation/2015/a15...

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by Flow2706
Mon Jun 14, 2021 4:43 pm
Forum: Civil Aviation
Topic: Off duty DL F/A causes dvx to OKC on LAX-ATL flight
Replies: 39
Views: 42449

Re: Off duty DL F/A causes dvx to OKC on LAX-ATL flight

The FAA needs to act on mental health screening. Drug test are given randomly and due to reasonable suspicion, but the mental health examination is the elephant in the room. A mental health fitness screening should be a mandatory requirement in the transportation industry on an annual basis. Like t...

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by Flow2706
Wed Jun 02, 2021 8:00 pm
Forum: Technical/Operations
Topic: Retro-jet maintenance
Replies: 8
Views: 2932

Re: Retro-jet maintenance

Not sure about the American Airlines retro liveries, but when I was working for Aer Lingus a couple of years ago we also had quite a few special liveries, one of them a retro livery (EI-DVM). I don't think maintenance needed to apply special procedures/considerations due to the livery. From the pilo...

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by Flow2706
Fri May 21, 2021 7:41 pm
Forum: Technical/Operations
Topic: EU / UN "government fleets" ?
Replies: 7
Views: 2359

Re: EU / UN "government fleets" ?

Many states have transport category aircraft for their government officials. The German "Flugbereitschaft" has some A340 that are being replaced by A350s. Other states have similar arrangements. Regarding the UN, the tend to lease the aircraft they need from different airlines. The UNHAS (...

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by Flow2706
Fri May 21, 2021 11:19 am
Forum: Technical/Operations
Topic: Inflight Oscillation at Cruise
Replies: 15
Views: 3631

Re: Inflight Oscillation at Cruise

These oscillations can be caused by mountain wave activity. As mentioned by VMCA787 the ALT CRZ mode on the A320 allows small altitude variations to increase passenger comfort, therefore the reaction to slight altitude change due to mountain wave activity can be slightly delayed.

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by Flow2706
Fri May 21, 2021 11:15 am
Forum: Technical/Operations
Topic: (Warning) Question about disturbing or morbid topic
Replies: 7
Views: 4670

Re: (Warning) Question about disturbing or morbid topic

It's strange if the victims of the IB610 accident were indeed found naked, as this accident happened during the approach phase. Finding the victims naked usually means that there was an explosive depressurization or that the victims were ejected from the aircraft while it was still in flight (f.e. s...

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by Flow2706
Wed Apr 14, 2021 10:38 am
Forum: Technical/Operations
Topic: YouTube Video - Late Throttle Override. Any further information?
Replies: 26
Views: 4121

Re: YouTube Video - Late Throttle Override. Any further information?

My question is why aren't they using simulators in Europe? The fidelity of modern full motion sims is so good that the lag is imperceptible. They work extraordinarily well for pilot training. Twice I've been on flights where it was the FO's first time actually flying the plane. Smooth as silk. The ...

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by Flow2706
Wed Apr 14, 2021 9:36 am
Forum: Technical/Operations
Topic: YouTube Video - Late Throttle Override. Any further information?
Replies: 26
Views: 4121

Re: YouTube Video - Late Throttle Override. Any further information?

My question is why aren't they using simulators in Europe? The fidelity of modern full motion sims is so good that the lag is imperceptible. They work extraordinarily well for pilot training. Twice I've been on flights where it was the FO's first time actually flying the plane. Smooth as silk. The ...

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by Flow2706
Fri Apr 09, 2021 10:13 am
Forum: Technical/Operations
Topic: Extension of flaps and landing gear during turns on large aircraft
Replies: 18
Views: 3630

Re: Extension of flaps and landing gear during turns on large aircraft

Regardless, I'd get a thrashing if I asked for flaps three as the gear was still moving. Convention is a powerful thing. :D In my previous company flaps 3 with gear still in transit apparently resulted in an FDM event. I was quite surprised when the safety department asked me to submit a report reg...

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by Flow2706
Wed Apr 07, 2021 9:39 pm
Forum: Technical/Operations
Topic: Extension of flaps and landing gear during turns on large aircraft
Replies: 18
Views: 3630

Re: Extension of flaps and landing gear during turns on large aircraft

There is no limitation regarding extending flaps during turns. The load on the flap mechanism is not increased due to the turn, there is no safety risk involved. The speed at flap extension is more critical though. On my type (A320) many pilots try to avoid flap extension close to the limit speed (u...

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by Flow2706
Tue Mar 30, 2021 9:48 pm
Forum: Technical/Operations
Topic: Crosswind Landing Question
Replies: 4
Views: 1599

Re: Crosswind Landing Question

Which is easier to control during a good stiff crosswind situation, an A380 or a CRJ? I'm sure this has been discussed before but does aircraft size affect drift? Is an A380 due to its massive fuselage and tail vertical size subject to more drift as it may act more like a huge sail or is not suscep...

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by Flow2706
Tue Mar 30, 2021 2:39 pm
Forum: Technical/Operations
Topic: A/C type behaviour in turbulence
Replies: 26
Views: 5209

Re: A/C type behaviour in turbulence

Regarding the A320 family, the A320 flies better in turbulence compared to the A319 and A321. The A319 is very light and therefore very sensitive. The A321 tends to yaw a lot in moderate turbulence as the fuselage is quite long compared to the A320. Also the cockpit and aft cabin is further from the...

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by Flow2706
Mon Mar 29, 2021 6:01 pm
Forum: Technical/Operations
Topic: Airlines that don't require their crews to overnight
Replies: 21
Views: 3202

Re: Airlines that don't require their crews to overnight

As far as I know Ryanair and EasyJet don’t have scheduled overnights. Unfortunately, overnights have become relatively uncommon for short/medium haul flights with many airlines.

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by Flow2706
Mon Mar 29, 2021 9:16 am
Forum: Civil Aviation
Topic: SAA flight had an "extaordinarily dangerous" takeoff
Replies: 24
Views: 10164

Re: SAA flight had an "extaordinarily dangerous" takeoff

A possible invalid activation of envelope protections intrigues me. Does anyone know how often this might occur? I don't think I've ever heard of an instance before. There was an OEB about the incorrect activation of the AOA protection. The reason for the publication of this OEB were two events of ...

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by Flow2706
Wed Mar 24, 2021 3:26 pm
Forum: Technical/Operations
Topic: Different manufacturers for jet engines #1 vs. #2
Replies: 25
Views: 5054

Re: Different manufacturers for jet engines #1 vs. #2

For the A320 CEO there is a thing called "engine intermix". However this does not refer to different engine types, but to different versions of the same (CFM56-5) engine. This intermix is usually not really not noticeable to the pilots, except that the EGT/N1 might be a bit different betwe...

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by Flow2706
Mon Mar 22, 2021 2:27 pm
Forum: Technical/Operations
Topic: Grass landing strips
Replies: 21
Views: 2890

Re: Grass landing strips

I have flown gliders for many years, mostly from Grass runways (they are still very common for gliders nowadays). Grass Runways are actually more "forgiving" than hard surface (for firm/hard landings). If the grass is mowed regularly it poses not particular challenges. Long grass can be cr...

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by Flow2706
Sun Mar 21, 2021 3:25 pm
Forum: Technical/Operations
Topic: Why not wider runways?
Replies: 31
Views: 5659

Re: Why not wider runways?

What runway width would you consider sufficient? 60m? 90m? 120m? Everything in life is a compromise. It is clear that every increase in runway width increases costs. The safety benefit is rather negligible. You could probably argue the same thing about roads. The most critical thing about narrow run...

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by Flow2706
Thu Mar 18, 2021 11:52 pm
Forum: Civil Aviation
Topic: Viva Aerobus A320 nose gear collapse at PVR
Replies: 46
Views: 8563

Re: Viva Aerobus A320 nose gear collapse at PVR

If you turn the tiller too far, it will unscrew right off the strut. It's not possible to "unscrew" the nose wheel by tiller movement. There is a mechanical stop on the tiller, the nose wheel movement is limited. No authority would certify an aircraft that could suffer a nose gear collaps...

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by Flow2706
Tue Mar 16, 2021 2:33 pm
Forum: Technical/Operations
Topic: Why are engines on planes changed so often?
Replies: 18
Views: 4192

Re: Why are engines on planes changed so often?

Some airlines also choose to „de-pair“ engines on new aircraft (i.e. swap on of the engines on a new aircraft with the engine of an older aircraft) if there is a reliability issue. This was mandated by the authorities on the 787s when it had so many engines issues. SQ also did it on A330s after they...

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