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-   -   747 with 5 engines (https://www.pprune.org/questions/328584-747-5-engines.html)

spikeair 27th May 2008 11:15

747 with 5 engines
 
When I was younger, I seem to recall seeing on a couple of occasions seeing a 747 take off over my house with a 5th engine attached.

I've not seen the same since. Was this common practice then or does it still occur on occasions?
Doesn't it mean there is a lot of drag with presumably a lot of rudder trim involved?
Please tell me I was not imaginiing it!

Notso Fantastic 27th May 2008 11:28

Quite a lot of drag, not a great deal of rudder trim as it is mounted inboard. They do attach covers to help reduce the drag. Quite a lot of work attaching and removing, but because of the size of the engine, the easiest way to ship around. Quite rare.
I'm not sure how the large GE engine of the B777 is shipped around!

forget 27th May 2008 11:32

http://i21.photobucket.com/albums/b2...as/0763404.jpg

sinkingship 27th May 2008 11:37

Its a less common sight now as there are more engine worksops globally now and airline pooling arrangements.
Ivé seen engines transported by 747 cargo planes, not sure about 777 engs there a lot smaller without the cowls.

Intruder 27th May 2008 14:16

777 engines fit inside a 747F.

William A Bong 27th May 2008 14:57

The only way to transport a spare A380 engine is inside a B747 Freighter.:ok:

point8six 27th May 2008 18:52

Spikeair - known as '5th Engine podding' - required different performance figures and also longer turnround time at destination to 'unpod' the engine. Not so common these days with engine pools at various airports, but can still be done on the 747-400. B777, A345/6 and A380 engines would not fit a 747 for carriage due ground clearance.

AircraftOperations 27th May 2008 19:48

Surely any engine that fits in a 747 freighter also fits into an Anotnov 124/225?

They have certinaly flown 777 engines for AOG in the past.

And some large engines do also fit inside IL-76 aircraft, although I don't know if this includes 747/777 and A380 engines.


Can a 747-400 definitely pod a 5th engine as I've only ever seen Classics do it.

744rules 27th May 2008 20:05

On all 747-400 you can still see the attachment points, but I think the a/c is not certified for the actual transport.

chock2chock 27th May 2008 20:10

Probably a morbid point- Air india Flight 182 brought down by a bomb over the atlantic in 1985, was transporting a fifth engine. I believe it was limited to a cruise of 280Kts or so.

Nepotisim 27th May 2008 22:00


On all 747-400 you can still see the attachment points, but I think the a/c is not certified for the actual transport.
I don't know, but I reckon that there is a -400. All QF 400's certified to carry V-Pod except the GE powered ones.

http://www.!!!!!!!!!!!!!!/photo/Qanta...438/0289429/M/

Sir Richard 27th May 2008 22:33

On the 747-200 I believe the speed limits were 290/.85....pretty much normal speeds. (R-R engines)

Dan Winterland 28th May 2008 12:59

When I flew 747Cs, my performance manuals had all the spare engine ferry figures.

Also, the VC10 could carry a spare engine, but it was enclosed in an aerodynamic pod and I gather there wasn't much of a drag penalty. BOAC had RR Conways on both their 707s and VC10s and the VC10 was the aircraft that transported engines around if needed down route.

gas path 28th May 2008 18:29

The 744 fifth pod mounts was a customer option. BA's 744 had that option (all except the last few I believe... note to self to go check:\).
We have used it but not often as ops don't like the penalty!:p preferring to use the Russian freighter.(RB211 and similar engines will fit in a IL 76.)
The GE90 and Trent will only fit in the AN124 and even that is a tight fit:hmm: If you only need to ship a GE90 propulsor it will go into a 747 freighter.

spikeair 28th May 2008 18:41

thanks for the replies. So I wasn't going mad!

nice picture of the mea 747, don't see that very often.

ix_touring 5th June 2008 19:57

see also the dc-10 here (about half way down)

http://www.aviationpics.de/tech/tech.htm

iX

dabz 7th June 2008 03:17

http://www.youtube.com/watch?v=iHE1FpR0BTo

Diesel_10 11th June 2008 12:38

BA 5th Pods
 
All 3 sitting unused for donkeys (geddit) years in corner of the Casualty Hangar. Scrap value only I'd suggest - PW one for the -100 probably museum material.

howard2107 12th June 2008 21:38

I seem to remember the Air India 747 that crashed in the atlantic off Southern Ireland in the early 1980`s was carrying a fifth engine, however this had nothing to do with the accident as far as i can remember.

green bean 16th June 2008 19:54

DW, a couple of pix, 707 being podded.. and the VC10 with it's complete, sleek 5th Pod..

http://i304.photobucket.com/albums/n...n78/10002c.jpg

http://i304.photobucket.com/albums/n...n78/10001b.jpg

forget 16th June 2008 19:59


VC10 with it's sleek lookin' 5th Pod..
Good post! I've never seen that before. Are the hard points standard fit?

wiggy 16th June 2008 20:09

Fifth pod carriage can cause unforseen problems. We were taking over a 744 on a transit through DEL a few years back to shuttle onwards to elsewhere in the subcontinent. It had come in carrying a fifth pod for another of our 400's which had landed in DEL a couple of days earlier on three:ok:. Unfortunately some of the pax going through on the aircraft to it's final destination see the fifth pod being taken off, and really dont like the idea of going flying with an engine "missing" :} Since they were non English speaking it took a little to convince them to stay onboard...

bvcu 16th June 2008 20:27

777 trent fits in 747F , but pretty tight !! GE90 has to have fan case removed unless you've got an AN124 available. Have seen trents shipped on il76 's as well

green bean 17th June 2008 21:24

Forget: The holes are in place ready to take the mounting brackets, followed by clever contraption with integral hoist and man in white coat to turn the handle...

http://i304.photobucket.com/albums/n...an10003b-1.jpg

merlinxx 18th June 2008 05:59

&4s & 70s all had ability to 5th pod. Go to www.britishairtours.com click on pics & you'll see one our finest with a 5th pod, 'O' yup along with Skipper & clubs, now you'll see the real reason for the 5th pod, 'tis for the crews golf clubs!

the rim 18th June 2008 11:02

5th pod
 
hey green the first pic you posted is a 707 5th pod being built up very labour intensive ...but in them days we had a lot of people.....they dont 5th pod 744 engines any more most are built up at the scene and no one has the money to keep engines anymore thank god they dont blow up much now

CR2 18th June 2008 13:04

spelling
 
You can squeeze 313cms through the side-door as long as you're in between the actuators (not a problem for an engine since its round). At this height you will touch the insulation...

green bean 18th June 2008 18:31

Rim.. Thanks, ammended!

punkalouver 9th February 2019 23:02

https://www.flightradar24.com/blog/h...wing-of-a-747/


perantau 10th February 2019 03:26

74 Classic on Pratts. 5th pod inboard of #2, plastic template on the ASI (speed limitation), a bit of aileron trim (2 units?), max alt FL350, iirc.

That's going back more than 25 years, memory a bit hazy now...

Jackjones1 10th February 2019 08:04

My first ever overseas engine change was to the Seychelles on a BA 747-100 ..... took the spare engine out with us as a fifth pod .... took about an hour to drop into the stand .... great experience!

frieghtdog2000 20th February 2019 12:49

Took a 5th Pod to JFK on the VC10 years ago - took it back the next day - -550B when they needed a -540 for a Standard.:D

Wodrick 20th February 2019 22:28

It's all very well saying these engines will fit a 747F. You are snookered if there are no offload facilities at destination. Been there A330 with a Trent failure in CUN had to get the AN whatever as it self loaded/unloaded down the ramp.


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