United Airline
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Who Will Power Newer B 747s?

Fri May 23, 2003 8:22 pm

According to Flight International, Boeing plans to build the B 747-800, which is 50 seats more than the current B 747-400. Also, earlier they stated that they want to build the B 747-400QLR. There are some airlines that are interested.

Who will power these new proposed B 747s? Pratt and Whitney, Rolls Royce, GE all three???????? Just like the B 747-400?
 
aloges
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RE: Who Will Power Newer B 747s?

Fri May 23, 2003 9:35 pm

Does QLR mean Quiet Long Range?

Anyway, I assume that not "all three" will place high bets on the 747 programme for much longer, meaning that they will hardly develop entirely new engines for that aircraft. New Trent derivatives instead of the RB211 might however be viable, for example.
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MD-11 forever
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RE: Who Will Power Newer B 747s?

Fri May 23, 2003 10:08 pm

"New Trent derivatives instead of the RB211 might however be viable, for example."

I'm sure that Rolls still has the drawings for the Trent600 (was planned for the 747 X or whatever the designator was) in the drawer, ready to pull them out when there's a need for a new 747 engine.....

Cheers, Thomas
 
aer lingus
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RE: Who Will Power Newer B 747s?

Sat May 24, 2003 9:39 pm

Rolls Royce all the way! Big grin

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Guest

RE: Who Will Power Newer B 747s?

Sat May 24, 2003 11:34 pm

Likely that the new generation 747s (if any) will still be powered with derivatives of current JT9, CF6 or RB211 type engines, these all have potential of thrust well into (I think) some 65,000 lbs thrust ratings, to power 747s into or near 1 million lbs (450 metric tons) takeoff weights... and they are proven engine technology...
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ConcordeBoy
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RE: Who Will Power Newer B 747s?

Sun May 25, 2003 4:45 am

According to Flight International, Boeing plans to build the B 747-800

Hmm...
747X
747-400X
747-800
747-400QLR
747-400XQLR

...five derivatives proposed in 2 years, and yet the pax model line is still going nowhere.

While I think there is some bastion of hope remaining for the pax-747 (i.e., Boeing waiting for the A388 to take flight and then reacting to its weaknesses); it seems Boeing has lost the affection they once had for the 747.
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SAS-A321
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RE: Who Will Power Newer B 747s?

Sun May 25, 2003 11:36 pm

QLR could stand for Quite a Long Range!  Big grin
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rendezvous
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RE: Who Will Power Newer B 747s?

Mon May 26, 2003 3:59 am

The trent seems like a good option.

Or maybe a new Russian engine could be given a chance?
 
ConcordeBoy
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RE: Who Will Power Newer B 747s?

Mon May 26, 2003 6:47 am

Or maybe a new Russian engine could be given a chance?

Probably... right around when Airbus is given a chance to create a new AirForce1  Big grin
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AussiePete
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RE: Who Will Power Newer B 747s?

Tue May 27, 2003 11:01 am

With the demand for 744 Pax variants reducing (the 777 offers much of what a 744 offered 10 years ago) there are doubts that the costs of offering numerous engine types is viable. The 744SQLR involved many changes to wing, strut and nacelles and was offered (I believe) only with GE power (sole source). Given the current split of orders/deliveries for 744 pax and to some extent F GE is leading the way. For this sort of airplane program some rationalisation is inevitable so I would expect GE to be sole source on future variants until a customer comes along who is willing to back orders for other engine types (say for example NWA ordered many airplanes with PW).

Looking at A380 and its weight issues, its low speed (to make range and payload targets), and its less than target overall performance (recognising there is still time to go) future variants of the 744 platform may become more attractive. Time will tell.
 
WomBat151
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RE: Who Will Power Newer B 747s?

Mon Aug 09, 2004 4:43 am

At Aircraft info i saw that there will be 2 engines available for A380: The RR and the Engine Alliance PW+GE. Is this only for the A380 or also for boeing in the future?
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DfwRevolution
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RE: Who Will Power Newer B 747s?

Mon Aug 09, 2004 5:18 am

At Aircraft info i saw that there will be 2 engines available for A380: The RR and the Engine Alliance PW+GE. Is this only for the A380 or also for boeing in the future?

The Engine Alliance GP7000 can be used for 747 derrivatives and the A380 only. That was the cachet of the EU agreement for the General Electric/Pratt Whittney partnership. Boeing wanted to use the GP7000 for the 767-400ERX, but after the concept was dropped, Boeing stopped lobying for its use in this way.

Or maybe a new Russian engine could be given a chance?

Nope, not a snowball's chance in hell. Perm and others build some decent engines, but I doubt they could throw their best against the might of GE or Rolls Royce. Where would they have maintenance bases, where is their support infastructure, how would they distribute spares?

Looking at A380 and its weight issues, its low speed (to make range and payload targets), and its less than target overall performance (recognising there is still time to go) future variants of the 744 platform may become more attractive

A direct 1:1 or slight growth of the 744 might please many of the airlines who are hesitant to replace a 744 with another 744 and are worried about the risk of moving up to the A380-800. Also, a 747-Adv would look much better (on paper) than a A380-700.
 
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HAWK21M
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RE: Who Will Power Newer B 747s?

Mon Aug 09, 2004 11:07 pm

Why 747-800 & not call it 747-500.Any reason.
regds
HAWK
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JeffDCA
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RE: Who Will Power Newer B 747s?

Tue Aug 10, 2004 1:55 am

I've seen indications of a Trent 1000 derivative being used on the new 74.

Cheers,

Jeff
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Klaus
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HAWK21M

Tue Aug 10, 2004 3:16 am

HAWK21M: Why 747-800 & not call it 747-500.Any reason.

The -500 and -600 were "burned" by the earlier failed proposals. I´m not certain, but I guess that the XQLR was supposed to be the -700, so that one was consumed as well.

Airbus probably won´t use the A330-500, as it was the proposed version number of the (earlier) proposed short-range derivative as far as I know. So a new potential counter-proposal to be pitched against the 7E7 would probably have to get a different number if it would still be declared a member of the A330 family...

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