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The 747-8 And A Fifth Pod.  
User currently offlineMax Q From United States of America, joined May 2001, 4068 posts, RR: 19
Posted (1 year 9 months 3 weeks 6 days 3 hours ago) and read 5589 times:

Just wondering if the -8 can carry an engine in a fifth pod if necessary ?


The best contribution to safety is a competent Pilot.
11 replies: All unread, jump to last
 
User currently offlineokie From United States of America, joined Jul 2003, 2851 posts, RR: 3
Reply 1, posted (1 year 9 months 3 weeks 6 days 2 hours ago) and read 5544 times:

The 5th pod was an option that only 3 original operators chose, largely due to the lack of ability to ship a motor the size required for a 47 at the time.
There are turbines out there now considerably larger now not requiring an additional pod and shipped by freight aircraft which were not available at the time the 47 was new.
I suspect the option has fallen off into the round file.

Okie


User currently offlinetdscanuck From Canada, joined Jan 2006, 12709 posts, RR: 80
Reply 2, posted (1 year 9 months 3 weeks 6 days 2 hours ago) and read 5539 times:

Quoting Max Q (Thread starter):
Just wondering if the -8 can carry an engine in a fifth pod if necessary ?



I suspect not; they never tested a 5th pod and, given the new wing and significant size difference for the GEnX-2B over prior 747 engines, I don't think you'd be able to have certified it without flight testing.

Tom.


User currently onlineKELPkid From United States of America, joined Nov 2005, 6264 posts, RR: 4
Reply 3, posted (1 year 9 months 3 weeks 5 days 23 hours ago) and read 5431 times:

Qantas ordered the 5th pod option on their -400's...they may have been the only operator to order it on the -400.


Celebrating the birth of KELPkidJR on August 5, 2009 :-)
User currently offlineBreninTW From Taiwan, joined Jul 2006, 1569 posts, RR: 1
Reply 4, posted (1 year 9 months 3 weeks 5 days 23 hours ago) and read 5426 times:

Quoting KELPkid (Reply 3):
Qantas ordered the 5th pod option on their -400's...they may have been the only operator to order it on the -400.

SA also had the option on its 744s. There are (were?) a couple of photos in the database of SA 744 with the pod fitted.



I'm tired of the A vs. B sniping. Neither make planes that shed wings randomly!
User currently offlineViscount724 From Switzerland, joined Oct 2006, 24075 posts, RR: 22
Reply 5, posted (1 year 9 months 3 weeks 5 days 3 hours ago) and read 4911 times:

Quoting okie (Reply 1):
The 5th pod was an option that only 3 original operators chose

Since the question involved the 747-8 it's not clear what 747 model you are referring to. If you are referring to all 747s, there are A.net photos of 747s (all models, -100/200/300/400) of at least 12 original operators with the 5th pod installed.


User currently offlineStitch From United States of America, joined Jul 2005, 29680 posts, RR: 84
Reply 6, posted (1 year 9 months 3 weeks 5 days 2 hours ago) and read 4856 times:
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Quoting BreninTW (Reply 4):
SA also had the option on its 744s. There are (were?) a couple of photos in the database of SA 744 with the pod fitted.

View Large View Medium
Click here for bigger photo!

Photo © Sunbird Photos by Don Boyd



User currently offlinegolfradio From Canada, joined Jun 2009, 714 posts, RR: 2
Reply 7, posted (1 year 9 months 3 weeks 1 day 8 hours ago) and read 4147 times:

If I am not wrong AI had the option too. Incidently AI 182 was carrying a 5th engine back to BOM when it went down.

User currently onlineL-188 From United States of America, joined Jul 1999, 29693 posts, RR: 59
Reply 8, posted (1 year 9 months 3 weeks 1 day 7 hours ago) and read 4108 times:

I don't think having this option is quite the deal it was with the growth of large freighters and regional repair shops.

I will say that passengers tend to like symetric aircraft and seeing 3 engines on one side does tend to freak those that notice out a bit.



OBAMA-WORST PRESIDENT EVER....Even SKOORB would be better.
User currently online747classic From Netherlands, joined Aug 2009, 2009 posts, RR: 14
Reply 9, posted (1 year 9 months 3 weeks 16 hours ago) and read 3884 times:

All 747-100/200/300 series had the option (attachment point installed) to carry a fifth pod.
If an operator wanted to use this option, Boeing provided the amended OM (after paying the required fee).

AFAIK only the PW JT9D series and the RR RB211-524 series were certified for fifth pod operation at the 747 classic aircraft.
No GE engines (-50E/E1/E2 and -80C2B series) were certified for fifth pod operation. Both GE engine types were designed to be split for (lower deck) transportation and all early 747/CF6 operators (KL, AF, LH, etc) had 74M and/or 74F in their fleets, able to transport a spare engine (no splitting required) at the main cargo deck.

I have no knowledge about fifth pod operation at the 747SP.

The 747-400 series were also sometimes used for fifth pod operation. Known users are QF and SA (both RB211 series). But at that time (end of the eighties of the last century) almost all spare engines are already shipped with 74M, 74F or other wide body freighter aircraft.

The 747-8 series has not been certified for 5th pod operation. Also AFAIK no attachment point and re-enforced wing structure , inboard of engine #2, has been included in the new wing built up. ( for weight saving reasons ?).

[Edited 2012-06-30 06:02:01]


Operating a twin over the ocean, you're always one engine failure from a total emergency.
User currently offlineMax Q From United States of America, joined May 2001, 4068 posts, RR: 19
Reply 10, posted (1 year 9 months 3 weeks 6 hours ago) and read 3702 times:

Thanks 747Classic.


Great information as usual.



The best contribution to safety is a competent Pilot.
User currently offlinegemuser From Australia, joined Nov 2003, 5552 posts, RR: 6
Reply 11, posted (1 year 9 months 3 weeks 3 hours ago) and read 3647 times:

Quoting 747classic (Reply 9):
The 747-400 series were also sometimes used for fifth pod operation.

For a video of recent QF "fifth pod" operation see the following video from 24 November 2011.

http://www.youtube.com/watch?v=ewbFlRaAd5c

Gemuser



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