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by Tristarsteve
Tue Jan 25, 2022 5:12 pm
Forum: Technical/Operations
Topic: Idle thrust - questions
Replies: 9
Views: 810

Re: Idle thrust - questions

There is a “flight idle” setting, that is higher than the “ground isle” setting in order to provide faster response in the air. Modern big jet engines now have an approach idle. The engine stays at ground idle until it is close to landing, then accelerates to approach idle. Approach idle is designe...

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by Tristarsteve
Tue Jan 18, 2022 8:11 pm
Forum: Civil Aviation
Topic: Tristar at BA - cabin & config & long-haul routes
Replies: 222
Views: 24775

Re: Tristar at BA - cabin & config & long-haul routes

again off topic, but does anyone know why the first forward half of tristar wing engines were painted and rear not? (as seen on the landor BA and Caledonian) I had wondered if something to do with thrust reverser. Look at the photo in post 205. The blue paint is the nose cowl, and the grey paint is...

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by Tristarsteve
Thu Jan 13, 2022 11:37 am
Forum: Technical/Operations
Topic: Are holding patterns used very much anymore and at which airfields?
Replies: 27
Views: 2354

Re: Are holding patterns used very much anymore and at which airfields?

Arriving at LHR from Stockholm, which I have done many hundreds of times, the hold is normal. Once about 4 years ago the pilot announced over the PA that we were missing the hold and going straight in. He was as surprised as we were. But in the past few years , one lap around is the normal, not more...

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by Tristarsteve
Mon Jan 10, 2022 11:28 am
Forum: Civil Aviation
Topic: Tristar at BA - cabin & config & long-haul routes
Replies: 222
Views: 24775

Re: Tristar at BA - cabin & config & long-haul routes

TUGMASTER wrote:
So I guess you were at LHR and your office at H7..?
Remember the TWA crews talking about swapping GF/TW frames on runs to the US & Middle East.


No I was working at Bahrain, mostly in the hangar on B737-200 and Tristar.

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by Tristarsteve
Sun Jan 09, 2022 8:12 pm
Forum: Civil Aviation
Topic: Tristar at BA - cabin & config & long-haul routes
Replies: 222
Views: 24775

Re: Tristar at BA - cabin & config & long-haul routes

Question for Tristarsteve, who may know the specifics behind it. Late70’s BA lsd a L1011 from Eastern, N323EA. However, they seemed to keep it quite a while, and was never re-registered in the UK. Did they eventually buy this aircraft..? Or was it a huge lease.. like 10 yrs ish.? Infact, pretty sur...

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by Tristarsteve
Sat Jan 08, 2022 5:13 pm
Forum: Civil Aviation
Topic: Tristar at BA - cabin & config & long-haul routes
Replies: 222
Views: 24775

Re: Tristar at BA - cabin & config & long-haul routes

I regularly flew to KUL on the Tristar 200s in the 1980s... The Tristars were lovely planes to fly on… The rear section (after of Door3) had 4-5 rows of Economy and in those days this was the Smoking section…This was also a semicircular corridor with 5 main toilets for Economy and the engine 3 inta...

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by Tristarsteve
Wed Jan 05, 2022 1:46 pm
Forum: Civil Aviation
Topic: Tristar at BA - cabin & config & long-haul routes
Replies: 222
Views: 24775

Re: Tristar at BA - cabin & config & long-haul routes

BA converted many of their Tristar 200 to remove the lower galley and extend the fwd freight hold in its place. The main deck galleys were made larger by removing the lifts. They must have made more money from freight than Y pax. Was this the Tristar 200F??

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by Tristarsteve
Tue Jan 04, 2022 1:47 pm
Forum: Civil Aviation
Topic: HS Trident
Replies: 117
Views: 16075

Re: HS Trident

Apologies on the five aircraft to Zaire - I'd obviously never recalled the fifth! The boost engine was used primarily when flying in southern Europe in relatively hot temperatures to improve runway performance out of the likes of Malta or Palma. Quite a lot of the Trident pilots became fairly senio...

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by Tristarsteve
Fri Dec 17, 2021 5:32 pm
Forum: Civil Aviation
Topic: Final A320ceo Family Aircraft Delivered to Delta
Replies: 34
Views: 8229

Re: Final A320ceo Family Aircraft Delivered to Delta

What are the differences between the 100 & 200 in the family? I believe the A320-100 didn't have wing fences, whereas the A320-200 did. Not sure about the A321s. Though I believe the wingtip fences were added to the -100s afterwards. There were only 20 A320-100, and BA operated 10 of them. (Air...

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by Tristarsteve
Tue Dec 14, 2021 12:40 pm
Forum: Technical/Operations
Topic: Which airliners have two jackscrew assemblies to control their horizontal stabilizer?
Replies: 7
Views: 1303

Re: Which airliners have two jackscrew assemblies to control their horizontal stabilizer?

And the L1011 Tristar had four hydraulic jacks. Really big and long jacks. One on each hydraulic system.

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by Tristarsteve
Tue Nov 30, 2021 3:52 pm
Forum: Technical/Operations
Topic: Turbofan Engine Shutdown Question
Replies: 12
Views: 2607

Re: Turbofan Engine Shutdown Question

You don't want the fan to stop turning. Spinning in the breeze is much better.
Many years ago I was doing some engineering things with a Tristar simulator, and afterwards we went flying in it, and the simulator engineer simulated a seized fan. Loads of vibration and very noisy. Not recommended!

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by Tristarsteve
Wed Nov 17, 2021 8:45 pm
Forum: Military Aviation & Space Flight
Topic: Peru's government try to sell presidential Boeing jet
Replies: 15
Views: 2119

Re: Peru's government try to sell presidential Boeing jet

But it isn't a full pax aircraft. It has VIP fittings including a presidential bedroom.

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by Tristarsteve
Wed Nov 17, 2021 8:42 pm
Forum: Technical/Operations
Topic: Restrictions on #2 Thrust Reverse L1011/DC10/MD11
Replies: 20
Views: 2922

Re: Restrictions on #2 Thrust Reverse L1011/DC10/MD11

I worked the Tristar/Rb211 for a long time, from 1974 to around 2000. The very early engines were really hard to work on , it seemed as if Rolls Royce had not thought that they could fail!!, and lock out was very hard. But after a couple of years it was redisigned and much easier, if the translating...

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by Tristarsteve
Tue Nov 16, 2021 6:25 pm
Forum: Civil Aviation
Topic: RR to re-engine Silk Way 747Fs swapping for PWs on two
Replies: 34
Views: 6050

Re: RR to re-engine Silk Way 747Fs swapping for PWs on two

As every one is guessing here BA had a number of B744 fitted with RB211-524GT engines. The HP 04 module was replaced with the 04 module for the Trent engine. I believe BA had about 12 B744 fitted with these engines, which moved around and were fitted to some B767 as well. These engines were much bet...

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by Tristarsteve
Mon Nov 01, 2021 12:36 pm
Forum: Technical/Operations
Topic: Is it dangerous when aircraft carry fuel in a center tank beneath the passenger cabin?
Replies: 43
Views: 3571

Re: Is it dangerous when aircraft carry fuel in a center tank beneath the passenger cabin?

The primary purpose of the tail tank on most aircraft is for CG control. Except the B747-400, where the fuel only flows out, usually to the centre tank. It is emptied very early in the flight, and if it fails to empty the aircraft must land soon before the C of G goes too far aft. Refuelling can be...

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by Tristarsteve
Wed Oct 27, 2021 11:26 am
Forum: Technical/Operations
Topic: Is it dangerous when aircraft carry fuel in a center tank beneath the passenger cabin?
Replies: 43
Views: 3571

Re: Is it dangerous when aircraft carry fuel in a center tank beneath the passenger cabin?

The Airbus has the option of "ACT"s, Additional Center Tanks, to enhance its range, available on the 319, 320, and 321, but I've only heard of it being installed on the A321 Qatar Airways has two A319 aircraft fitted with an ACT. They have provisions for six ACT which would fill up both h...

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by Tristarsteve
Thu Oct 21, 2021 2:25 pm
Forum: Civil Aviation
Topic: Nordic Aviation 2021
Replies: 794
Views: 154284

Re: Nordic Aviation 2021

A flight that long will require 3 crew up front and blocking a first class seat for the pilot on rest. A third crew member for a flight shy above 3000nm? Is that even 7 hours? Or do I miss something important? FAA rules for long haul flights are much stricter than EU rules, and I expect that UA uni...

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by Tristarsteve
Sun Oct 17, 2021 3:53 pm
Forum: Technical/Operations
Topic: Can you talk with a handheld transreceiver to aircraft?
Replies: 17
Views: 2010

Re: Can you talk with a handheld transreceiver to aircraft?

When I worked at ARN for BA I had a hand held VHF radio. Used it every day in the winter to pass deicing codes to the aircraft, and occasionally during delays to talk to the pilots when we didn't have their mobile numbers.

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by Tristarsteve
Fri Oct 08, 2021 4:21 pm
Forum: Civil Aviation
Topic: Nordic Aviation 2021
Replies: 794
Views: 154284

Re: Nordic Aviation 2021

SAS flights ARN ORD Looking in SAS online it seems that the non stop flight starts again in Feb next year with an A330. Does anyone know if this is going to happen, or is it just an idea. We are expecting to import a dog from USA, and Chicago is the best departure point, and I have used it before. A...

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by Tristarsteve
Thu Oct 07, 2021 7:48 pm
Forum: Technical/Operations
Topic: During a standing takeoff on a water-injected aircraft like the early 707, when does the water start?
Replies: 17
Views: 2630

Re: During a standing takeoff on a water-injected aircraft like the early 707, when does the water start?

On the HS748 the water is injected when the throttle moves past a microswitch correlating with 14750 RPM (15000 is takeoff power) if the W/M pumps were turned on in the after start checks. If we were to do a standing takeoff it would burn water once the the throttle goes by that position (hence we ...

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by Tristarsteve
Thu Sep 30, 2021 4:42 pm
Forum: Technical/Operations
Topic: Which airliners have ram air turbines. Which power hydraulics and which provide electricity?
Replies: 31
Views: 2493

Re: Which airliners have ram air turbines. Which power hydraulics and which provide electricity?

An aux battery was a customer option on the 737 NGs, which I believe doubled that time to 60 minutes. Our B737-400 had a second battery at the rear of the e and e bay. I don't know if Wikipedia can be counted on, but according to them the Vickers VC-10 had a RAT and the A-380 has the largest RAT pr...

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by Tristarsteve
Sat Jul 31, 2021 4:25 pm
Forum: Technical/Operations
Topic: 737 MAX electrical system
Replies: 10
Views: 1363

Re: 737 MAX electrical system

Our B737-300/500 had IDGs.
But our B737-400 were delivered with VSCF. They were very unreliable and after a while all the engines were retrofitted with IDGs.

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by Tristarsteve
Tue Jul 20, 2021 7:10 pm
Forum: Technical/Operations
Topic: What Is it? Old Luggage Container?
Replies: 29
Views: 3775

Re: What Is it? Old Luggage Container?

It reminds me of the containers that the RAF used on their Tristars.
They were loaded through the L2 pax door and ran on a track in the fwd cabin.

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by Tristarsteve
Thu Jun 17, 2021 3:25 pm
Forum: Technical/Operations
Topic: APU Usage
Replies: 18
Views: 3630

Re: APU Usage

I spent many years working on the ramp at Stockholm ARN. When I arrived in 1987 there was no APU policy. Most aircraft had them running when the crew were on board. then one day around 1991 a British Airways BAC111 was parked on a gate nearest to the terminal, and it stayed there for four hours from...

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by Tristarsteve
Mon Jun 07, 2021 6:26 pm
Forum: Technical/Operations
Topic: Cargo doors open inward or outward
Replies: 26
Views: 4162

Re: Cargo doors open inward or outward

The widebody jets have forward and aft cargo doors that open outwards and a bulk cargo door in the back that opens inwards. I can't think of a widebody jets that didn't have this configuration. As far as I know, the A320 can be container loaded depending on the options selected by the airline, and ...

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by Tristarsteve
Sun Apr 11, 2021 3:49 pm
Forum: Technical/Operations
Topic: Airline wide-body ULD types and management
Replies: 3
Views: 2072

Re: Airline wide-body ULD types and management

I see you ask about LD2. In my experience LD2 are not common. We use only LD3 in B767. We can fit enough LD3 to carry all the bags in the rear hold, and they are then able to be through shipped at the hub onto a B777 or B744. We normally only carry pallets in the B767 fwd hold. We sometimes carry fr...

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by Tristarsteve
Tue Mar 23, 2021 4:27 pm
Forum: Technical/Operations
Topic: Parting out retired aircraft
Replies: 14
Views: 2229

Re: Parting out retired aircraft

25 years ago Nordic East Airline scrapped a Tristar at ARN. They needed the spares, especially the engines, so they stripped it. When they had finished, the airport was getting upset about this hulk parked on their ramp so they had to remove it,. They found a firm that could dismantle the aircraft a...

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by Tristarsteve
Tue Mar 16, 2021 11:21 am
Forum: Civil Aviation
Topic: Jet fuel from waste 'dramatically lowers' emissions
Replies: 71
Views: 8023

Re: Jet fuel from waste 'dramatically lowers' emissions

All the food waste in this part of Sweden is collected and turned into biogas to run the busses. There is none left for aircraft. Where are we going to get it from?

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by Tristarsteve
Sun Mar 14, 2021 4:35 pm
Forum: Technical/Operations
Topic: Door Latch Question
Replies: 18
Views: 2700

Re: Door Latch Question

No need for MEL, nothing is broken. The door handle on the inside is normal, and there is no warning in the cockpit. This happens all the time on B737 and B757 (different system, but same problem.) Usually spotted by the ground crew, and fixed from the ground by pushing it with a long broomstick! Bu...

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by Tristarsteve
Fri Mar 05, 2021 2:16 pm
Forum: Technical/Operations
Topic: Holding the nose wheel off
Replies: 35
Views: 4559

Re: Holding the nose wheel off

When I worked in Bahrain around 1980 we used to handle a LTU Tristar that stopped for fuel. It operated from the Maldives to Germany on a Tristar 1., and stopped at BAH for fuel only. Normal on chocks time was around 20 minutes using two bowsers, one each side. There were never any defects or discus...

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by Tristarsteve
Mon Mar 01, 2021 6:22 pm
Forum: Technical/Operations
Topic: A321XLR’s rear fuel tank demands special fire-protection conditions
Replies: 224
Views: 49153

Re: A321XLR’s rear fuel tank demands special fire-protection conditions

I mean it's not just going to be cold feet, right? Those rows in the cabin over and near the RCT will be very cold in general if there's an icebox on the floor. So either the passengers in those rows will be very cold or the rest of the cabin will have to be overly hot to compensate. That is a pret...

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by Tristarsteve
Mon Mar 01, 2021 11:25 am
Forum: Technical/Operations
Topic: A321XLR’s rear fuel tank demands special fire-protection conditions
Replies: 224
Views: 49153

Re: A321XLR’s rear fuel tank demands special fire-protection conditions

I am a bit confused here. Many years ago when I worked on a B737 C check hangar, we used to lift the floor panels over the centre tank for inspections. Beneath the floor panels were the floor beams that held up the floor, and below the beams was the top of the centre tank. Very close at its highest ...

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by Tristarsteve
Fri Feb 19, 2021 4:00 pm
Forum: Technical/Operations
Topic: Is it true that when flying air pressure won't allow the cabin door to open?
Replies: 22
Views: 3364

Re: Is it true that when flying air pressure won't allow the cabin door to open?

A little anecdote about door pressure. Our overnight parked A320 is left on a jetty for the morning departure and has heating /cooling hose connected. It delivers air from the terminal at 22degC at low pressure. It often happened that the morning departure flight crew arrived at the airport, with th...

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by Tristarsteve
Thu Feb 18, 2021 3:39 pm
Forum: Technical/Operations
Topic: The Magic of "CAT IIIB"
Replies: 281
Views: 17761

Re: The Magic of "CAT IIIB"

In 2009 British Airways started using the Microwave Landing System (MLS) at LHR. The Ils/Gps receivers were modified with an MLS card. and most of the narrow body Airbus were so equipped. The system worked exactly the same as the ILS as far as the crews were aware. But as the BA A320 fleet was respo...

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by Tristarsteve
Mon Feb 15, 2021 3:28 pm
Forum: Travel, Polls & Preferences
Topic: Emirates at the beginning
Replies: 17
Views: 3641

Re: Emirates at the beginning

TUGMASTER wrote:
I remember GF had flights between AUH-DXB.
Mental huh...?

Yes every morning at 0700 a B737-200 departed on the milk run
BAH-DOH-AUH-DXB and back for lunch!

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by Tristarsteve
Sun Feb 14, 2021 4:15 pm
Forum: Travel, Polls & Preferences
Topic: Emirates at the beginning
Replies: 17
Views: 3641

Re: Emirates at the beginning

Thanks for the information, was there a predecessor to Emirates that may have operated turboprops or another operator out of Dubai in that era perhaps? It may not have been Dubai, the operator did have the name ‘Emirates’ something and I’m pretty sure it was Twin Otters they operated ? The predeces...

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by Tristarsteve
Tue Feb 02, 2021 1:21 pm
Forum: Travel, Polls & Preferences
Topic: BA lesser known discontinued services
Replies: 44
Views: 4482

Re: BA lesser known discontinued services

Apparently, BA used to fly to some of Finland until Covid screwed everything up and they had to close their Helsinki service until further notice. What happened to the rest of the routes, ie. Tampere, Turku and Vaasa? I remember I had such a nice holiday once in the early 2000s in one of these citi...

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by Tristarsteve
Sat Jan 30, 2021 2:12 pm
Forum: Technical/Operations
Topic: Refueling wide bodies
Replies: 31
Views: 5445

Re: Refueling wide bodies

Along the same lines, do airlines strategically shop around for fuel at airports/states/countries with lower prices? Our computor flight plan always gives the crew fuel cost factors so they can decide whether to carry tanker fuel or not. Sometimes, this flight plan will add the fuel for the crew. W...

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by Tristarsteve
Thu Jan 07, 2021 2:19 pm
Forum: Technical/Operations
Topic: Why are preflight walk-arounds done by pilots and not ground personnel?
Replies: 38
Views: 4985

Re: Why are preflight walk-arounds done by pilots and not ground personnel?

The pilots are always there! Many times maintenance is not. 30 years ago in Sweden all walk rounds on transport aircraft were carried out by a type licensed engineer. We had to jumpseat on charter flights to carry out the turnround inspection. In SAS the pilot did not leave the cockpit. He was not t...

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by Tristarsteve
Sat Dec 26, 2020 1:27 pm
Forum: Technical/Operations
Topic: Airline catering question.
Replies: 16
Views: 2867

Re: Airline catering question.

Then you can let us know where Scottish salmon and Hereford beef are sourced for BA / VS U.S. / Caribbean flights. I worked for BA in Europe up until 3 years ago. They had just changed catering contractor in LHR and at that time all meals in Europe were prepared at LHR. I worked at ARN, and all our...

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by Tristarsteve
Thu Dec 17, 2020 2:02 pm
Forum: Technical/Operations
Topic: A320 Fuel System Center Tank (Original Configuration) Question
Replies: 8
Views: 2143

Re: A320 Fuel System Center Tank (Original Configuration) Question

The 5 minute time delay is there because, when the tank is nearly empty, the pump inlet will be uncovered, leading to low pressure, then covered again as the fuel sloshs around and the aircraft rolls about. So Airbus lets the low pressure indication flash on and off for 5 minutes before closing the ...

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by Tristarsteve
Wed Dec 16, 2020 8:25 pm
Forum: Technical/Operations
Topic: Gates with automatic sensor for the pilots instead of rampers
Replies: 17
Views: 2987

Re: Gates with automatic sensor for the pilots instead of rampers

In Europe, marshalling aircraft to a parking position is not carried out by rampers, but by airport employed staff. Here in Stockholm these guys were all replaced by automated docking systems about 10 years ago. I find the automated system is more accurate, especially when docking on a gate that onl...

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by Tristarsteve
Mon Dec 07, 2020 4:10 pm
Forum: Technical/Operations
Topic: How was aircraft dispatching made before computers?
Replies: 7
Views: 1680

Re: How was aircraft dispatching made before computers?

When I worked for Gulf Air in 1980, all the flights around the Gulf, up to about 3 hours, were issued by operations to the crew on a double sided A4 sheet of paper. On one side was the route and average times, and average fuel for no winds. On the other side was the fuel planning for different winds...

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by Tristarsteve
Tue Nov 24, 2020 1:26 pm
Forum: Technical/Operations
Topic: New airline to an airport
Replies: 7
Views: 1953

Re: New airline to an airport

I worked for a major European airline, and once was involved in opening a new station. I could not believe how much work was involved in getting the station ready for its first flight. It was Keflavik in Iceland, and we had no staff there at all. Everything was contracted including the station manag...

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by Tristarsteve
Tue Nov 24, 2020 9:46 am
Forum: Civil Aviation
Topic: BA 747 catches fire in Spain.
Replies: 69
Views: 14506

Re: BA 747 catches fire in Spain.

As was previously mentioned, I doubt this aircraft was in any form of "scrapping" mode, with the engines still slung. That is where most of the value of an WFU aircraft is. The engines are generally the very first thing removed from any aircraft that has been permanently parked. The BA B7...

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by Tristarsteve
Fri Oct 30, 2020 4:34 pm
Forum: Technical/Operations
Topic: Are cargo doors of passenger aircraft operated from the outside?
Replies: 11
Views: 2724

Re: Are cargo doors of passenger aircraft operated from the outside?

Zeke On all Airbus aircraft the opening and closing of cargo doors using the control panel can be overridden by turning the associated electric hydraulic pump off. By default these pumps are in auto mode, when exercising the switch from the outside it will energize the electric hydraulic pump to ena...

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by Tristarsteve
Sat Oct 17, 2020 3:44 pm
Forum: Technical/Operations
Topic: B747 Leading Edge Slats
Replies: 9
Views: 2468

Re: B747 Leading Edge Slats

BA had a close accident on a B744 taking off from Johannesburg.
The sensor that tells the LE flaps to retract actuated during a take off run, causing the slats to retract just before rotation.
The aircraft managed to get airborne, but it was close. The logic was changed after that.

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by Tristarsteve
Fri Oct 16, 2020 4:20 pm
Forum: Technical/Operations
Topic: When does it become safe to approach an engine after shutoff?
Replies: 15
Views: 2975

Re: When does it become safe to approach an engine after shutoff?

But doesn't the flight deck crew wait for the engine to spin down before turning off the beacons? The last two airlines I worked with did. In a strong wind the fan wasn't slowing down much and they were waiting to turn off the beacons, and we were waiting for them!! Here is part of the shutdown chec...

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by Tristarsteve
Sun Oct 04, 2020 3:45 pm
Forum: Technical/Operations
Topic: In your airline, do you start the APU upon landing?
Replies: 23
Views: 4757

Re: In your airline, do you start the APU upon landing?

Here at ARN the rule is that the ground crew do not cross the red line to approach the aircraft until the engines and beacon are off. So you need to start the APU after landing, or you will have no power at the gate. If the APU is inop, then the pilot tells the handling agent and ground power is con...

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by Tristarsteve
Fri Sep 18, 2020 6:31 pm
Forum: Technical/Operations
Topic: Off position for landing gear handle
Replies: 24
Views: 5388

Re: Off position for landing gear handle

Redbellyguppy wrote:
Very much NOT resting on the gear doors but rather, on the up locks themselves.

On the Tristar main gear the uplocks held the doors up, and the gear rested on the doors.

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