cmhjets Posted November 2, 2007 Share Posted November 2, 2007 Which are larger in physical size, diameter, engines of 777 or A380? My son asked me, and I don't know the answer...yet. Quote Link to post Share on other sites
David Walker Posted November 2, 2007 Share Posted November 2, 2007 (edited) That depends on which type of B777 is being discussed. United B777-200ERs have P&W 4804 engines with a fan diameter of 112". The A380 uses the RR Trent 900 with a fan diameter of 116". The B777-300ER (such as those operated by Air France) is powered by the GE 90 which has a fan diameter of 128". From what I've read the GE 90 is apparently the largest diameter airliner engine made, at least for now. Edited November 2, 2007 by David Walker Quote Link to post Share on other sites
vc-10 Posted November 3, 2007 Share Posted November 3, 2007 The Trent 900 is the biggest produced by RR so far..... I think. The GE90 is the biggest, but the Trent 900 is 'bigger' than the PW and RR options on the 777...... Quote Link to post Share on other sites
Stephen Posted November 3, 2007 Share Posted November 3, 2007 The Trent 900 is the biggest produced by RR so far..... I think. The GE90 is the biggest, but the Trent 900 is 'bigger' than the PW and RR options on the 777...... Wow, the GE90 nacelle is about the same diameter as a 737 fuselage so the Trent 900 must be something. Stephen Quote Link to post Share on other sites
vc-10 Posted November 4, 2007 Share Posted November 4, 2007 At Farnborugh last year RR had a Trent 900 on their stand. It's huge, the centre of the spinner was at eye level..... and you could push the engine round with a finger, it was sooo smooth. The curved blades are amazing! Quote Link to post Share on other sites
Charlie Cheetah Posted November 4, 2007 Share Posted November 4, 2007 (edited) What about the engines of the C-5? Edited November 4, 2007 by Charlie Cheetah Quote Link to post Share on other sites
vc-10 Posted November 4, 2007 Share Posted November 4, 2007 They are much smaller. 56,000 lb/f thrust, the GE TF39 is basically the military version of the CF6. The Trent 970 on the A380 develops 70,000 lb/f of thrust...... and the uprated one planned for the freighter and the higher MTOW passenger aircraft has 76,000 lb/f! The GE90 on the 777-300ER has an astonishing 115,000 lb/f of thrust! Quote Link to post Share on other sites
Pruz Posted November 12, 2007 Share Posted November 12, 2007 They are much smaller. 56,000 lb/f thrust, the GE TF39 is basically the military version of the CF6. The Trent 970 on the A380 develops 70,000 lb/f of thrust...... and the uprated one planned for the freighter and the higher MTOW passenger aircraft has 76,000 lb/f! The GE90 on the 777-300ER has an astonishing 115,000 lb/f of thrust! The Trent 800 on the B777 is two tons lighter than the GE90, and develops up to 95,000lb vs the 85,000lb of the GE90. That said, the GE90's huge fan makes it the larger engine of the two. We've got a nice pic on the wall of our training dept of almost an entire airline crew of 14 adults standing and sitting inside the fan intake of a GE90! Quote Link to post Share on other sites
SebastianP Posted November 12, 2007 Share Posted November 12, 2007 128 inches, that's 10 2/3 feet or 3.2 meters. What's the fuselage diameter of a Gulfstream V? It should be in the same general region... (A Learjet 35 is less than 13 feet tall including the tail and landing gear - it'd take about as much damage from a birdstrike to the engines as the CF90 would take from a Learjet strike... :o) SP Quote Link to post Share on other sites
Fiddler Posted November 12, 2007 Share Posted November 12, 2007 Some 2 years ago now Boeing proposed the 777-200LR with the by then largest engines ever put on an airliner. I don't know what type they are but I thought 300 were produced before the release of the LR (which I think has no orders yet...) Greetings Quote Link to post Share on other sites
Atlant Posted November 12, 2007 Share Posted November 12, 2007 Here is a model of Trident between engines of A-380. Quote Link to post Share on other sites
David Hingtgen Posted November 12, 2007 Share Posted November 12, 2007 The -300ER and -200LR are equivalent besides length. The basic 777-200 didn't last long, most are the -200ER--which is now considered the "standard" 777-200. So when they came out with a truly long-range version based on the -300ER's improvements, they needed another name, since -200ER was already taken. Thus, -200LR. The basic -300 already has most of what makes a -200ER an ER, so the -300 and -200ER are equivalent. A -200 would be equivalent to a -300SR, if it existed. So the longest-range version of each, with GE90's and rakelets, are the -200LR and -300ER, respectively. 772 names are complex. Originally it was the 777-200A and 777-200B. Then it was the 777-200 and 777-200IGW. Finally, they became the 777-200 and 777-200ER. All those pairs are the same planes, just named differently. The basic -200 isn't very common, less than a hundred built, the vast majority being the initial UA, BA, ANA order. All others for a long time were -200IGW's, renamed -200ER. Quote Link to post Share on other sites
Hooker169 Posted November 14, 2007 Share Posted November 14, 2007 (edited) Some 2 years ago now Boeing proposed the 777-200LR with the by then largest engines ever put on an airliner. I don't know what type they are but I thought 300 were produced before the release of the LR (which I think has no orders yet...) Delta has an order for two of the 200LR right now with options for three more later. These will be powered by GE-90's instead of the Trent's we have on the 200ER's now. These are actually orders we already had in place just upgraded to the LR's to try to keep expanding to asia and the middle east. Anyway sorry for being off topic. Mike Edited November 14, 2007 by Hooker169 Quote Link to post Share on other sites
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