Search found 92 matches

  • 1
  • 2
by unimproved
Tue Jul 23, 2019 10:22 pm
Forum: Technical/Operations
Topic: Where do old/discontinued J class seat products end up?
Replies: 18
Views: 1437

Re: Where do old/discontinued J class seat products end up?

Another thing to think about is that most seat upgrades are competition based. Why spend a lot of money (don't underestimate the electrical work needed to get those new seats in) when your competitors don't have it either? Lie flat seats will start to trickle down into those markets after the 777's...

Jump to post
by unimproved
Tue Jul 23, 2019 12:40 pm
Forum: Technical/Operations
Topic: Where do old/discontinued J class seat products end up?
Replies: 18
Views: 1437

Re: Where do old/discontinued J class seat products end up?

Another thing to think about is that most seat upgrades are competition based. Why spend a lot of money (don't underestimate the electrical work needed to get those new seats in) when your competitors don't have it either? Lie flat seats will start to trickle down into those markets after the 777's ...

Jump to post
by unimproved
Fri Jul 19, 2019 11:31 am
Forum: Technical/Operations
Topic: Usage ratio of MIL-PRF-23827 to MIL-PRF-81322 grease on A320
Replies: 8
Views: 777

Re: Usage ratio of MIL-PRF-23827 to MIL-PRF-81322 grease on A320

Can't speak for the A320 but on the 747 it's #33 unless specified otherwise. I'd say about 90%.

Jump to post
by unimproved
Thu Jul 18, 2019 8:46 pm
Forum: Technical/Operations
Topic: Recirc Fans/ engine start
Replies: 9
Views: 824

Re: Recirc Fans/ engine start

Depends on of they're switched on or not. Usually leave them off myself but that's without self loading cargo in the back.

Jump to post
by unimproved
Thu Jul 18, 2019 3:49 pm
Forum: Technical/Operations
Topic: Where do old/discontinued J class seat products end up?
Replies: 18
Views: 1437

Re: Where do old/discontinued J class seat products end up?

I think most of ours were given away, sold, used for cabin trainers, etc. At least a dozen ended up in company break rooms and offices.

It's one of those things people in middle management like to give away to get their name known.

Jump to post
by unimproved
Wed Jul 10, 2019 11:48 am
Forum: Technical/Operations
Topic: FAA to order AoA vane changes on 727/757/767.
Replies: 8
Views: 1931

Re: FAA to order AoA vane changes on 727/757/767.

Do wonder how the 737 managed to be excluded, as the fuselage is almost 1:1 with the 727 and these sensors have been used for quite a while it seems.

Jump to post
by unimproved
Sun Jul 07, 2019 9:04 am
Forum: Technical/Operations
Topic: Delta 747 Question
Replies: 10
Views: 2449

Re: Delta 747 Question

I have not heard of any real upgrades that should make a difference in smoke. It's probably a case of operator procedure as they only get real smokey when pushed to full power.

It's not just the DL 747's either, PW4000 is smokey in general:

Jump to post
by unimproved
Mon Jul 01, 2019 7:10 pm
Forum: Technical/Operations
Topic: Apu overheat protective shutdown in flight
Replies: 4
Views: 1674

Re: Apu overheat protective shutdown in flight

Too much power asked for the FL? IIRC the max altitude for packs is around 15,000ft and elec at 37,000.

Jump to post
by unimproved
Sun Jun 23, 2019 9:28 am
Forum: Technical/Operations
Topic: 19 seat airliner question
Replies: 35
Views: 3823

Re: 19 seat airliner question

I don't know if the photo's are representative of the end product, but I've seen home built simulator cockpits with higher build quality.

Jump to post
by unimproved
Mon Jun 17, 2019 1:23 pm
Forum: Technical/Operations
Topic: Crew Control/Operations
Replies: 13
Views: 2222

Re: Crew Control/Operations

Major airlines are a case of being inside the company and branching out from there. So a check in agent with the same qualifications has a higher chance than you, at least at getting an interview. I've seen more than enough people who started at the HR front desk and worked themselves up to middle m...

Jump to post
by unimproved
Tue Jun 11, 2019 6:48 am
Forum: Non-Aviation
Topic: Gender Wage Gap in Airlines
Replies: 48
Views: 1985

Re: Gender Wage Gap in Airlines

These statistics always account for company wide (with more women in lower paying functions) statistics. Pilots are more expensive and largely male.

Anything under middle management is based on fixed union wages with us. Above that the wages are high enough that complaining is just useless whining.

Jump to post
by unimproved
Sun Jun 09, 2019 7:59 am
Forum: Technical/Operations
Topic: All white liveried B757.
Replies: 9
Views: 1842

Re: All white liveried B757.

White, military reg, US Air force titles on the side?

We've had 99-6143 here a few weeks ago, was quite surprised to see a 757 next to all the tiny private jets.

Jump to post
by unimproved
Sun Jun 09, 2019 5:55 am
Forum: Travel, Polls & Preferences
Topic: Do any airlines still use ceiling mounted CRT televisions for IFE?
Replies: 25
Views: 2279

Re: Do any airlines still use ceiling mounted CRT televisions for IFE?

SWISS still doing it on intra-Europe flights with usually some kids cartoons (if there are multiple children on board). On all other European carriers I know don't use it for IFE. Norwegian however still has the mounted televisions, but uses them for advertising and route info instead of IFE. SWISS...

Jump to post
by unimproved
Sun Jun 09, 2019 5:53 am
Forum: Technical/Operations
Topic: Question About Older IFE Systems
Replies: 5
Views: 2815

Re: Question About Older IFE Systems

Because most IFE systems now include wifi over satellite, which has much higher bandwidth. Thus not allowing room to include connecting flight info? Do you know of any DL domestic aircraft that still have those drop-down LCD screens the OP mentions? Cost savings with Delta. Most EU airlines still h...

Jump to post
by unimproved
Fri Jun 07, 2019 1:32 pm
Forum: Travel, Polls & Preferences
Topic: Do any airlines still use ceiling mounted CRT televisions for IFE?
Replies: 25
Views: 2279

Re: Do any airlines still use ceiling mounted CRT televisions for IFE?

SWISS still doing it on intra-Europe flights with usually some kids cartoons (if there are multiple children on board). On all other European carriers I know don't use it for IFE. Norwegian however still has the mounted televisions, but uses them for advertising and route info instead of IFE. AFAIK...

Jump to post
by unimproved
Sun Jun 02, 2019 8:50 pm
Forum: Technical/Operations
Topic: Spirit airlines SEA issue?
Replies: 4
Views: 1062

Re: Spirit airlines SEA issue?

The FR24 transponder only starting in the buffer and the delay point towards some tech issue. Most likely it went to the buffer to completely reboot it (which can fix quite a lot on the 'bus).

Jump to post
by unimproved
Thu May 30, 2019 9:27 pm
Forum: Technical/Operations
Topic: Aircraft tilting back on ground due to weight imbalance
Replies: 25
Views: 3794

Re: Aircraft tilting back on ground due to weight imbalance

Freighters have a jack point at the tail to prevent this, and newer weight and balance systems will scream bloody murder before it's even close to tipping (or being jacked for a nose wheel change....). For passenger operations IIRC the 737-900 gets a tail stand as well due to its length. When someth...

Jump to post
by unimproved
Thu May 30, 2019 8:06 am
Forum: Technical/Operations
Topic: Status of JFK Tower Air Terminal
Replies: 3
Views: 919

Re: Status of JFK Tower Air Terminal

Last time I checked it was abandoned with all the old signs still in place.

Jump to post
by unimproved
Wed May 29, 2019 7:10 am
Forum: Technical/Operations
Topic: Fear of aircraft lavatories
Replies: 19
Views: 2787

Re: Fear of aircraft lavatories

It's not a normal lock, it's just a single pin you move into the frame with the knob.

Doors can easily be openend from the outside, some can even be removed completely while the door is still locked.

Jump to post
by unimproved
Tue May 28, 2019 2:05 pm
Forum: Civil Aviation
Topic: Why does BA (and others) decide to use 20+ year old planes on specific popular routes?
Replies: 103
Views: 22384

Re: Why does BA (and others) decide to use 20+ year old planes on specific popular routes?

Most EU-US J travel is business related, aka the company is paying for it. And at least for that it means that unless the food is inedible, seat broken or something like that I couldn't care less. All I want is a place to get some shuteye and a ride home.

Jump to post
by unimproved
Tue May 28, 2019 10:09 am
Forum: Technical/Operations
Topic: Question About Older IFE Systems
Replies: 5
Views: 2815

Re: Question About Older IFE Systems

Why don't they do that anymore? Because most IFE systems now include wifi over satellite, which has much higher bandwidth. Some newer systems have the ability to display any rebooking/cancellation on the related passengers seat automatically. Otherwise there's also the use of tablets by cabin crew ...

Jump to post
by unimproved
Sun May 26, 2019 8:00 pm
Forum: Technical/Operations
Topic: On Flight Internet System / Turboprop
Replies: 6
Views: 1847

Re: On Flight Internet System / Turboprop

If it works on a jet, it works on a turboprop. Not much difference in drilling a hole on top of the fuselage.

Actually getting someone to pay for the STC is going to be the hard part.

Jump to post
by unimproved
Tue May 14, 2019 9:47 am
Forum: Technical/Operations
Topic: Seat change - forced
Replies: 19
Views: 3696

Re: Seat change - forced

Layout or A/C changes happen. Once had my seat changed 3 times within 2 hours because they couldn't find a suitable A/C.

Jump to post
by unimproved
Tue May 14, 2019 9:44 am
Forum: Technical/Operations
Topic: Barking noise A320
Replies: 6
Views: 2187

Re: Barking noise A320

It's only heard while running on APU or single engine hydraulics as in normal operation there is no power to be transferred.

Jump to post
by unimproved
Mon May 13, 2019 9:35 pm
Forum: Technical/Operations
Topic: Closing and Opening of Aircraft Doors
Replies: 14
Views: 3302

Re: Closing and Opening of Aircraft Doors

These videos both seem to be recorded in Asia, where it is a lot more common. Even bus drivers point at the green light and call out "All clear, crossing the intersection".

Jump to post
by unimproved
Sun May 12, 2019 7:47 pm
Forum: Technical/Operations
Topic: Delta 767 Engine Question
Replies: 5
Views: 1797

Re: Delta 767 Engine Question

Delta has at least 4 different cabin configs on the -300ER, so it might be because those newer birds have the long haul cabin. Or because the longer flights require crew rests which aren't standard on the 767.

Jump to post
by unimproved
Sun May 12, 2019 7:17 pm
Forum: Technical/Operations
Topic: 789 Western Europe to Southeast Asia
Replies: 7
Views: 1953

Re: 789 Western Europe to Southeast Asia

Definitely not a technical thing. I guess there’s just not many 787s in Europe. Mainline carriers are BA, AF and LO. DY and VS have them too, but they generally fly transatlantic routes. LO does WAW-SIN, WAW-NRT and occasionally WAW-DPS on the 788. Norwegian did LGW-SIN, but I guess they dropped it...

Jump to post
by unimproved
Sun May 12, 2019 7:14 pm
Forum: Technical/Operations
Topic: 789 Western Europe to Southeast Asia
Replies: 7
Views: 1953

Re: 789 Western Europe to Southeast Asia

It's also doing AMS-KIX/NRT/SFO, along with some routes ex-NRT/HND from ANA and JAL. And other than JAL I try to avoid them due to the cramped 9 abreast config. Europe to Asia has a lot of competition from the ME3 which means an extra frequency with a smaller jet isn't going to give you many more pa...

Jump to post
by unimproved
Sat May 04, 2019 6:43 pm
Forum: Technical/Operations
Topic: Transfer Checked Baggage Allowance?
Replies: 2
Views: 676

Re: Transfer Checked Baggage Allowance?

No. Only if they travel on the same reservation (=checking in at the same time).

Jump to post
by unimproved
Fri May 03, 2019 5:13 pm
Forum: Technical/Operations
Topic: Do Airlines/MROs responser type rating course for you?
Replies: 1
Views: 588

Re: Do Airlines/MROs responser type rating course for you?

Depends on the employer. Even the interview could make the difference. With us you either start as a mechanic and move to certifying staff if your manager thinks you're capable after a few years of experience (and get both your licence and type rating paid for) or start as certifying staff with a si...

Jump to post
by unimproved
Thu May 02, 2019 2:50 pm
Forum: Technical/Operations
Topic: Hypothetical Question about MD-11
Replies: 12
Views: 2103

Re: Hypothetical Question about MD-11

It isn't always that easy. Yes, it can fly on two engines as that's a requirement from before ETOPS. But with the engine you also lose a hydraulic pump, generator and bleed air, which means you might have to use alternate procedures or have cruise restrictions. Every aircraft is certified for engine...

Jump to post
by unimproved
Sat Apr 27, 2019 9:49 am
Forum: Technical/Operations
Topic: Size of fans on hypothetical A340neo
Replies: 33
Views: 2983

Re: Size of fans on hypothetical A340neo

The Trent 500 are around 50klbf, where there isn't much else. They could either go back to the 200/300 and bolt on a CFM LEAP, or keep it this size and use the GEnx or XWB-75 with around 65k. Either way nobody would buy it over the A330neo. 8 abreast on a 4 engine aircraft just isn't profitable anym...

Jump to post
by unimproved
Sat Apr 27, 2019 9:24 am
Forum: Technical/Operations
Topic: Hangar queens, still a thing ?
Replies: 34
Views: 5630

Re: Hangar queens, still a thing ?

Yup, of course they exist. It's not a particular fleet-type, just a few tails, across the fleet, that seem to be our "least-best". Disappointingly, one of those tails is about 6 months old with about 1500 hours. But, it's getting better. You know an aircraft is a "hangar queen" ...

Jump to post
by unimproved
Thu Apr 25, 2019 3:53 pm
Forum: Technical/Operations
Topic: Hangar queens, still a thing ?
Replies: 34
Views: 5630

Re: Hangar queens, still a thing ?

A hangar queen is not a model, it's a certain aircraft.


And yes, they do still exist. We have a 787 that just keeps coming back with issues to the point where mechs go "It's <reg> again, isn't it?"

Jump to post
by unimproved
Wed Apr 24, 2019 5:11 pm
Forum: Technical/Operations
Topic: 767-300 (non-ER) Transatlantic
Replies: 28
Views: 3241

Re: 767-300 (non-ER) Transatlantic

Obviously the 777-200ER and the 777-200LR have extended range beyond the vanilla 777 A models. They also have other enhancements that allow them to operate as an ETOPS flight. BA operates B777-200 A models ETOPS to the USA. I thought all B777 were ETOPS built by Boeing. ETOPS is more about operator...

Jump to post
by unimproved
Tue Apr 23, 2019 3:22 pm
Forum: Technical/Operations
Topic: 767-300 (non-ER) Transatlantic
Replies: 28
Views: 3241

Re: 767-300 (non-ER) Transatlantic

N140LL is ETOPS certified (small text under the "1401" on the nose gear door) so it should be able to do the route.

However on a route like CDG-JFK with many flights per day they'd rather cancel and rebook than have an oddball aircraft on the other side of the ocean.

Jump to post
by unimproved
Sat Apr 13, 2019 8:27 pm
Forum: Technical/Operations
Topic: Distinct noise inside 737 cabins
Replies: 30
Views: 6053

Re: Distinct noise inside 737 cabins

The AC packs are located under the fuselage at the wings. That's probably what you're hearing.

Jump to post
by unimproved
Sat Apr 13, 2019 4:38 pm
Forum: Technical/Operations
Topic: De-rating a CFM56?
Replies: 14
Views: 3272

Re: De-rating a CFM56?

Can someone please explain why a manufacturer would charge less for a derated engine if it's simply a plug change? Would it have to do with power-by-the-hour setups where the engine would presumably last longer between overhauls if it wasn't operated at full rated power? Sent from my SM-G950U using...

Jump to post
by unimproved
Fri Apr 12, 2019 4:36 pm
Forum: Technical/Operations
Topic: De-rating a CFM56?
Replies: 14
Views: 3272

Re: De-rating a CFM56?

http://www.sjap.nl/cfm56-7-hybrid-identification-plug/

It has some config options, but the thrust rating is hardcoded.
-->

Here's more info on the plug: http://www.sjap.nl/cfm56-7-hybrid-identification-plug/

It has some config options, but the thrust rating is hardcoded.

Jump to post
by unimproved
Tue Apr 09, 2019 1:53 pm
Forum: Technical/Operations
Topic: Why do MD-80s lock their horizontal stabilizer in an upright position at the gate?
Replies: 24
Views: 4040

Re: Why do MD-80s lock their horizontal stabilizer in an upright position at the gate?

The MD-80s have had the 717 tail cone retrofitted to reduce drag. IIRC AA made them in house. The elevator is controlled only by the control tab, which moves it into position the same way the elevator moves the entire aircraft. On the ground it doesn't do anything and the elevator is weighed so that...

Jump to post
by unimproved
Sun Apr 07, 2019 9:03 am
Forum: Technical/Operations
Topic: A380 wing twist modifications
Replies: 5
Views: 1546

Re: A380 wing twist modifications

I think it was only a 1-2% change, which results in a slightly straighter attitude in cruise. Can't see the difference myself.


It wasn't like a DC-10/MD-11 were the galley carts would roll away due to the cruise angle.

Jump to post
by unimproved
Mon Mar 18, 2019 12:36 am
Forum: Technical/Operations
Topic: Forensic exam of aircrash victims
Replies: 6
Views: 1887

Re: Forensic exam of aircrash victims

It's 100% for the families. The crash investigation has no use for the identity, as we're all just bags of meat. The cause of death can sometimes be of interest (lack of oxygen, smoke inhalation, died after impact, etc), but in a case like this where everyone died on impact right after takeoff it's ...

Jump to post
by unimproved
Fri Mar 15, 2019 8:22 pm
Forum: Technical/Operations
Topic: Too far?
Replies: 11
Views: 1785

Re: Too far?

Military aircraft are designed to be unstable since a plane that only wants to fly straight ahead would be at a huge disadvantage in aerial fights. Nobody designs a passenger aircraft that way, but certification costs for a new design can drive them to keep on stretching. The basic 737 fuselage has ...

Jump to post
by unimproved
Tue Feb 26, 2019 11:02 am
Forum: Technical/Operations
Topic: Aviadvigatel PS-90
Replies: 7
Views: 1098

Re: Aviadvigatel PS-90

If the no-source wikipedia claims are true: The A2 was comparable to current engines when it was certified (with western parts), and the PD-14 seems to be 15% more efficient than that.

Jump to post
by unimproved
Mon Feb 25, 2019 10:18 pm
Forum: Technical/Operations
Topic: Is a Swing-Tail Possible?
Replies: 25
Views: 2473

Re: Is a Swing-Tail Possible?

Ignoring the forces on the tail because you're using it to steer, there's also a lot of cables, hydraulics and such going to it. And the APU being fitted in it doesn't help either,

Jump to post
by unimproved
Sat Feb 23, 2019 12:12 pm
Forum: Technical/Operations
Topic: KLM MD-11 Scrapped
Replies: 21
Views: 4835

Re: KLM MD-11 Scrapped

Absolutely nobody is looking for a freighter, much less a passenger version. The KLM/Martinair cargo MD11's were retired not long after, and out of 7 a/c 2 went to FedEx (but never entered service and were only used for parts). SkyLease scrapped another and the rest was stored to be dismantled for p...

Jump to post
by unimproved
Sat Feb 16, 2019 12:53 pm
Forum: Technical/Operations
Topic: More and more wing clipping incidents?
Replies: 70
Views: 4907

Re: More and more wing clipping incidents?

Aircraft movements are increasing each year. This alone is already a factor for increased occurrences of wing clippings. Now what about the frequency of wing clippings per movement? If this frequency has increased over the time, then there are obviously other factors. Increasing (average) wingspans...

Jump to post
by unimproved
Tue Feb 05, 2019 2:44 pm
Forum: Technical/Operations
Topic: How is AVOD content uploaded to aircraft?
Replies: 19
Views: 3297

Re: How is AVOD content uploaded to aircraft?

With us it gets loaded by Panasonic technicians using the service port on the IFE system. Here's a video which shows the equipment used: https://www.youtube.com/watch?v=jiahz8pW7Yk We once made a system for Lufthansa Technik that worked on AES encrypted SSDs, with the unlock password securely store...

Jump to post
by unimproved
Tue Jan 29, 2019 8:58 pm
Forum: Technical/Operations
Topic: How is AVOD content uploaded to aircraft?
Replies: 19
Views: 3297

Re: How is AVOD content uploaded to aircraft?

https://www.youtube.com/watch?v=jiahz8pW7Yk
-->

With us it gets loaded by Panasonic technicians using the service port on the IFE system.

Here's a video which shows the equipment used: https://www.youtube.com/watch?v=jiahz8pW7Yk

Jump to post
  • 1
  • 2