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744 With PW "screamer" Engines?  
User currently offlineQantas747-sp From , joined Dec 1969, posts, RR:
Posted (13 years 7 months 2 weeks 5 days 3 hours ago) and read 1627 times:

Do any 747-400's today have the old Pratt and Whitney "screamer engines which we so commonly see on older 747's?

I recently saw a computer graphic showing the 747IGW in Qantas livery with those engines? so is ths out dated form of engine to be used on a top of the range new aircraft??

regards,

Qantas-the spirit of Australia

8 replies: All unread, jump to last
 
User currently offlineHA_DC9 From United States of America, joined Jul 1999, 653 posts, RR: 1
Reply 1, posted (13 years 7 months 2 weeks 5 days 3 hours ago) and read 1569 times:

To my knowledge, nobody flies a 747-400 with the old Pratt and Whitney JT9D turbofans. People can get confused with the 747-300 which looks very similar to a 747-400 but uses P & W JT9D engines. Boeing built 2 747-100B's with the stretched upper deck (SUD) of the 747-300 which makes it look like a 747-300/400, but these were hybrid aircraft and designated 747-100B(SR/SUD). A picture and more info about these hybrid 747's is in the book "Boeing 747: Design and Development Since 1969" by Norris and Wagner.

User currently offlineQantas747-sp From , joined Dec 1969, posts, RR:
Reply 2, posted (13 years 7 months 2 weeks 5 days 2 hours ago) and read 1545 times:

I am aware of these aircraft but the plane in the computer graphic I was referring to (which by the way is in the latest edition of Australian Aviation magazine) was the soon to be made 747IGW<<

User currently offlineTEDSKI From , joined Dec 1969, posts, RR:
Reply 3, posted (13 years 7 months 2 weeks 5 days ago) and read 1508 times:

The only models of the 747 that had the JT9D were the 100/200 & 300. If you see picture of a Swissair 747-300 you will see the JT9Ds.

User currently offlineC3000 From , joined Dec 1969, posts, RR:
Reply 4, posted (13 years 7 months 2 weeks 4 days 23 hours ago) and read 1493 times:

Hi!

I think Qantas747-sp is referring to Boeing's CGI of the upcomming B747IGW as below.

The engines do look suspiciously similar. But I'm quite sure that's an oversight on the part of the artist or that the new engines do share an uncanny similarity afar but not technologically of course.



Copyright © 2001 The Boeing Company - All rights reserved


User currently offlineAA61hvy From United States of America, joined Nov 1999, 13977 posts, RR: 57
Reply 5, posted (13 years 7 months 2 weeks 4 days 23 hours ago) and read 1482 times:

Is it me or does the JT8D's on the 747-100/200/300/SP sound the best? I think they sound the coolest out of any plane I have herd. The 777 w/ PW comes close though


Go big or go home
User currently offlineHkg_clk From Hong Kong, joined Jan 2001, 999 posts, RR: 2
Reply 6, posted (13 years 7 months 2 weeks 4 days 18 hours ago) and read 1460 times:

What engines did Qantas order these aircraft with? I thought they usually use RR engines on 744s.


See my homepage for a comprehensive guide to spotting and photography at HKG
User currently offlineCeilidh From , joined Dec 1969, posts, RR:
Reply 7, posted (13 years 7 months 2 weeks 4 days 13 hours ago) and read 1445 times:

AA61hvy - you'd need about a dozen JT8s to power a B747 - I agree that it would sound spectacular, though!

User currently offlineTSV From Australia, joined Nov 1999, 1641 posts, RR: 5
Reply 8, posted (13 years 7 months 2 weeks 4 days 12 hours ago) and read 1432 times:

If it's anything like the Airbus order Qantas is yet to select the engines.

What engines were Boeing offering on the IGW?

Regards

Rob



"I told you I was ill ..." Spike Milligan
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