Search found 15 matches

by Charlie757
Mon May 04, 2020 6:23 pm
Forum: Technical/Operations
Topic: Cabin Door Locks
Replies: 7
Views: 1406

Cabin Door Locks

As far as I’m aware cabin doors can’t be opened in-flight due to differential pressure on plug-type doors, or locking devices on doors that open outwards. I know that on the ground some airliner doors show as ‘Locked’ and show ‘unlocked’ when the handle is lifted/rotated. So are these locking mechan...

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by Charlie757
Mon Jan 27, 2020 7:02 pm
Forum: Technical/Operations
Topic: 777 crew rest area
Replies: 12
Views: 1945

Re: 777 crew rest area

Thanks for all the answers guys :)

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by Charlie757
Mon Jan 27, 2020 7:01 pm
Forum: Technical/Operations
Topic: 777 crew rest area
Replies: 12
Views: 1945

Re: 777 crew rest area

The original A market 777s didn't have the range to justify a crew rest area so were delivered without. When BA ordered the 777IGW (GE powered ERs) it was only ever planned to operate to the east coast USA, Middle East and Nigeria. Aside from the odd flights to SEA, DEL, NBO and some of the Gatwick...

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by Charlie757
Sat Jan 25, 2020 3:20 pm
Forum: Technical/Operations
Topic: 777 crew rest area
Replies: 12
Views: 1945

777 crew rest area

A friend of mine that works for British Airways mentioned that some of their 772ER’s don’t have crew rest areas installed, just some seats with a curtain around which seems odd for an airliner that can easily fly up to 14 hours. I later found an FAA document online which permits changes to overhead ...

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by Charlie757
Wed Oct 02, 2019 12:33 am
Forum: Civil Aviation
Topic: A320neo Family 'Excessive Pitch' Issue Thread
Replies: 215
Views: 53270

Re: A320neo Family 'Excessive Pitch' Issue Thread

Alarming to think this is what cabin densification is doing. The implementation of that galley and toilet layout (spaceflex) which is impossible for crew to work out of, and the addition of 6 extra seats on A320’s is something these aircraft were never designed for (hence the last row having no wind...

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by Charlie757
Tue Sep 17, 2019 5:09 pm
Forum: Technical/Operations
Topic: Boeing 787 Range
Replies: 39
Views: 4293

Boeing 787 Range

On the Boeing website they state that the range of the 787-9 is 7,530 miles yet Qantas manages to make the aircraft fly non-stop LHR-PER which is a distance of almost 9000 miles routing dependant. So my question is, how can they make an aircraft fly so much further than its stated distance? Is it du...

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by Charlie757
Tue Sep 17, 2019 4:57 pm
Forum: Civil Aviation
Topic: 777 Retirement/Scrapping Thread - 2019
Replies: 147
Views: 41443

Re: 777 Retirement/Scrapping Thread - 2019

How come certain -200ER/LR aircraft are being scrapped so young. With some examples being around 10-15 years old?

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by Charlie757
Tue Jul 30, 2019 7:24 pm
Forum: Technical/Operations
Topic: B777 Crew Bunks
Replies: 1
Views: 2344

B777 Crew Bunks

So I understand that the 777-200ER can have flight and cabin crew bunks retrofitted at a later date but when the -200ER first entered service in the late 90's did it come from the factory with these rest areas? or are they only a fairly recent installation due to new rules etc.

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by Charlie757
Tue Jul 02, 2019 2:53 am
Forum: Technical/Operations
Topic: Jet buzzsaw noise
Replies: 17
Views: 1928

Jet buzzsaw noise

When a jet aircraft takes off you get the famous ‘buzzsaw’ sound that carries on for most of the climb and just gradually fades away. But during cruise you can’t hear that sound even though the engines are still operating at let’s say 70-80% So does this buzzsaw sound disappear in-flight because of ...

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by Charlie757
Thu Jun 20, 2019 6:54 pm
Forum: Civil Aviation
Topic: Buzzsaw sound on takeoff
Replies: 56
Views: 11528

Buzzsaw sound on takeoff

Recently took two flights on an A321 and B77W sitting in front of the engine and noticed that even when power is reduced after takeoff the buzzsaw sound never seems to go away it just fades out slightly? I always thought the buzzsaw noise went away after decel but does the noise just get drowned out...

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by Charlie757
Tue Apr 09, 2019 7:50 pm
Forum: Civil Aviation
Topic: 777 Retirement/Scrapping Thread - 2019
Replies: 147
Views: 41443

Re: 777 Retirement/Scrapping Thread - 2019

How come some airlines are retiring the 777-200ER so early on? It’s relatively efficient with good range and capacity? Is it simply because planes like the A350 and 787 are cheaper to operate?

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by Charlie757
Fri Dec 14, 2018 1:37 am
Forum: Civil Aviation
Topic: British Airways 777 Engines
Replies: 7
Views: 3188

British Airways 777 Engines

So after doing a bit of spotting up at Heathrow I know that British Airways uses GE90 and Trent 800 on its 777-200ER fleet. Now I know earlier versions of the GE90 aren’t as powerful as the -115B used on the -200LR & -300ER. So I was wondering if the Trent 800 BA use is more or less powerful tha...

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by Charlie757
Fri Oct 19, 2018 11:45 pm
Forum: Technical/Operations
Topic: A320 Series Doors
Replies: 9
Views: 2921

Re: A320 Series Doors

greg85 wrote:
Are you sitting near the front when you hear it?



I’ve been sat at the front and also right at the back

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by Charlie757
Fri Oct 19, 2018 11:44 pm
Forum: Technical/Operations
Topic: A320 Series Doors
Replies: 9
Views: 2921

Re: A320 Series Doors

As seals get older, they become a little stiffer, less pliable. The seal takes a little bit more pressure to seat against the seal depressor or frame. The hiss you're hearing is the air escaping between the seal and the frame. It should go away rather quickly as the pressure differential goes up. F...

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by Charlie757
Thu Oct 18, 2018 10:47 pm
Forum: Technical/Operations
Topic: A320 Series Doors
Replies: 9
Views: 2921

A320 Series Doors

So this is probably a really obvious question but I’ve been flying on the A320 family a lot recently and noticed a hissing noise during the initial climb. I’ve been told it’s just the pressurisation, but was wondering if anyone could shed some more light on what it actually is and why it makes that ...

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