The answer to all our secrets

[Groundloop]

Originally Posted by BOAC

I've no doubt some old Trident puke will be along soon to tell you that they used to use reverse on number 2 engine (yawn

Not a Trident puke myself but remember many years ago at the hold at Glasgow as a BA Trident came in. Reversers deployed on outboard engines at about 30 feet.
Asked my instructor (who was a Trident FO) what that was about. Stated that it was quite common to "get the bl**dy thing on the ground!".
So, yawn away BOAC!

[Digby-dude]

BA 465 MAD - LHR Sunday 21/01/07

Hi All,

I noticed the BA465 from Madrid to LHR almost got canned on Sunday, the aircraft was a 75 (G-CPES I think) that seemed to have an issue when starting the r/h engine.

The engineering team arrived with a ladder and changed something that was situated inside the engine pylon (on the side of the aircraft body), a few mins later the engine was restarted and the aircraft departed.

Does anyone know the problem was? or what equipment may have been replaced within the pylons? Just to feed my intereset !! (And to learn more)

Thanks,

Adam

[SteveSmith]

B737 tech delay

I'm sat at gate 19 at NCL at the moment, waiting for a technical delay on my flight home to Bristol (EZ569). It's a 737 (not sure which type), registration ending JP.

As the crew went onto the plane, I noticed a bloke getting up into a cavity behind the nose gear a couple of times. It was obviously big enough for him to pull himself up into it completely, and sit with just his feet dangling out. Having done that a couple of times, he shut the cavity, and then the delay was announced.

What is in there, and might it give any clue as to why I'm still sitting here?

Thanks,

Steve.

[forget]

Electrics and Instruments bay......... most of the 'black boxes'. Here -

http://www.b737.org.uk/eandebay.htm

Now you can pop outside and tell him what's wrong.

[spannersatcx]

Electronic and Equipment (E&E) Bay

[PK-GDU]

Night flight over Moskwa, 1992

In May 1992, I occupied a left window seat of Cathay Pacific flight from HKG to LHR, departed 00.15. The CX flight flew the "great circle" which overflew, most of the hours ,ex USSR air space.

The F/A religiously told all passengers to keep the window shutters closed at all times. It was dark and everybody were sleeping, so it was okay with me, but a fellow passenger at the right side tried to have a peek, almost at once two of the female F/A urgently ,or in an almost "histeric" instruction requested him to close it immediately.

Fifteen minutes later, the cabin was in a total peace and silence. The light was dimmed to almost totally dark. I managed to lift my window shutter about an inch. Through the gap, in the faint moonlight, I could recognized two forms of jet fighters, down below at 7 o'clock position.

My question is, was it normal if a commercial flight overflying that area escorted or threaten by jet fighters? If yes then who paid the fuel bill for those fighters? Or it was just a close encounter like the unfortunate KAL 007 over Kamchatka ?

Thanks for any illuminating answer or information given to this question.

PK-GDU

[clifftop]

Landed okay, but cannot take off again...

Are any of you folks aware of such an incident?

An aircraft managing to land safely on a short runway (in an emergency for example), but then not having enough runway to take off, effectively permanently grounding the a/c??

[forget]

Hardly likely. If it got in - it'll get out - stripped.

http://www.abpic.co.uk/photo/1001607

http://www.thirdamendment.com/wrongway.html

[perkin]

A south African airline retired a 747-SP fairly recently which was donated to an aviation museum and landed on a runway at an aviation museum from where it would never take off again...quite a few videos of the landing if you google for it...the strip was almost too narrow for the 747's gear to fit on...!

[Golf Charlie Charlie]

Concorde at Duxford ?

[llondel]

Concorde would probably have managed to get out of Duxford OK if it wasn't for the fact that immediately after its arrival the runway got shortened so they could route the M11 through. However, I think the B52 at Duxford arrived after this time and it's the shortest runway ever used for one of them, with no chance of getting it up again.

[HEATHROW DIRECTOR]

VC-10 at Brooklands??

[mutt]

Mexican Gulfstream made an emergency landing in an Irish race course many years ago, they had to built a runway to get it out.

Saudi B747-100 landed with a full load of passengers at a military runway in Madras India, that runway was too short for the aircraft to takeoff, however it was stripped to make it capable of taking off from a 2nd runway.

Mutt

[The_Steed]

Vibration at V1

I came back from Bergamo to Edinburgh on Sunday with Jet2.com (733 - Ex BA?) and at V1 there was a strong vibration that felt like it was coming from the port engine.

Question is, is that normal or something to be concerned about?

Also, on both the outbound and return flights we were delayed by about an hour due to "air traffic flow-control restrictions" - is that a valid excuse or was the 25 minute turn around just too tight?

Thanks!

The Steed

[jet2impress]

So how do you know you were at V1? Flow control.... yes a valid excuse.

Can you describe the sound any better? Where were you sitting? Did the cabin crew look concerned?

[The_Steed]

We were rotating (apologies if that's not V1 ).

I was in row 6 or 7C and it lasted for about two or three seconds - kinda hard to describe the noise other than like the noise when the engine first spools up accompanied with the shakes!

(Couldn't see the cabin crew but they went about their business as normal).

[jet2impress]

This may of been the nose wheel still spinning as the aircraft left the runway. It can pick up a bit of a shimmy sometimes as it leaves the tarmac. I can't think what else it could of been. If the cabin crew did not seem to notice anything, then don't worry. Also, the speed on rotation is referred to as Vr. Hope this helps.

[NWT]

With regards to steering the aircraft while taxiing. On a lot of the larger jets (i.e. 747), the nose wheels are steered using a hand operated steering 'tiller' (via cables and hydraulic actuators), there is also an input from the rudder pedals, if I remember correctly, only active below 80 knots and only moves the steering by about 6 degrees, mainly used for keeping plane straight during the take off and landing roll. Some crews will use during normal taxiing for small corrections. Also on the 747 while taxiing, once the nose wheels go past a certain angle (20 degrees ?) the main body gear also steers, but in the opposite direction, to relieve the stress on the legs and assist with turning the rear of the aircraft.

[Impress to inflate]

We elect to leave our gear down for longer than normal periods of time at times of heavy rain or snow/slush on the taxiway/runway to "blow" away water/slush/snow that may have stuck on the gear. Arriving at an offshore rig and not being able to drop the gear is very embarrassing.

[Rainboe]

'Relative Motion' dear boy. The fact that you, the viewer, is moving affects the apparent motion of another object. Have you noticed how lamp posts whizz past you in a car. Is the lamp post whizzing, or are you observing it to apparently? And who put that lamp post in a car anyway?

Now get back to your school work- it's still term time. To get anywhere, you have to be better than the next guy.