Yes, its different, preparing a tender costs a lot of money.
Wasn’t NG/EADS re-paid/compensated by the U.S. DOD to the tune of 30-40 million dollars for the preparation of their bid? I thought I read that somewhere.
Just because they make one engine that is better in an aircraft (your example of the F-16) doesn’t mean ALL their engines will be better in ALL aircraft.
I’m sure there are alot of considerations (more than us “laymen” would guess) in engine selection.
I would argue that they not only did really well with the F-16, but also with the big commercial engines. For example, according to Boeing’s Sept 30, 2009 ETOPS quarterly report, the PW 4000 has flown 24.9 million hours and and had 211 In Flight Shut Downs (IFSD). According to the same report, the CF6-80C2 has flown 27.2 million flight hours and had only 140 IFSD. And according to my own informal observation, the GE burns slightly less fuel.
I’m interested in this story, could you link to it?
Thanks
Hmm… I’m more of the way of thinking he was doing his job rather than being a hero to be honest. I wish him a happy retirement though!
Paul
+1
He did what he was trained and paid to do. An interesting point lost in all the hero worship is that the much maligned (in some quarters) fly-by-wire A320 performed flawlessly without any engine power.
Best wishes on retirement Sully, you’ve got a lucrative part time career ahead of you performing speaking engagements for lemmings.
I’ve never seen so much alleged “concern for the American taxpayer” by people who are not American taxpayers as on this forum. It’s kind of hard to believe actually.
Did anyone seriously believe that a labor friendly Democratic administration would allow a European competitor to assemble government airplanes in a southern, non-union, Republican, state? The hilariously ironic part about it all is how much Europeans apparently love Obama.
I was slightly wrong, it is 1375kg, not 1500kg per engine.
CF6-80C2B7F = 9,790lb Dry
http://rgl.faa.gov/Regulatory_and_Guidance_Library/rgMakeModel.nsf/0/b0…GEnx-1B67 = 12,822lb Dry
http://rgl.faa.gov/Regulatory_and_Guidance_Library/rgMakeModel.nsf/0/77…= 3,032lb or 1375kg
It does seem a big difference.
Thanks very much for that…..I’ve been looking for awhile.
I am amazed the difference is so large.
Hey, all you experts, please indulge a “stupid question” from a layman….I am not an engineer.
Aren’t the vertical tails WAY too small? Doesn’t this affect maneuverability very significantly, not to mention the high speed stability/inertia coupling? I thought the reason high speed fighters had big vertical tails was so they wouldn’t swap ends at very high speed.
The GENx does weigh more than 1500kg more per engine that the equivalent CF6 fitted to the 747-400. Adding to this would be the additional weight of the cowling, wing strengthening and certification costs.
I would be very interested to see your source for the GEnx weight being 1500kg more per engine than the CF6. I’ve looked all over the web for GEnx weight and have come up empty.
Frankly, I’m surprised that no one is talking about re-engining 744’s with GEnx engines. I saw somewhere in the aviation press recently that doing so would produce about a 17% fuel savings…..or about 3 times the savings that winglet installations are giving on other airframes. I ran some rough numbers and if you fly about 4,000 hours a year and burn 25,000lb/hr, that would save about 2.5 million gallons of fuel per year per airplane. (17% of 25,000 is 4250 lbs/hr. 4250 x 4000 hr is 17 million gallons….17 million divided by 6.7 gives about 2.537 million gals of fuel)
I’m quite sure Boeing wouldn’t be happy about re-engining 744’s….they would rather sell all new 748’s. But I agree with the previous poster who said that large 4 engine airplanes are not highly desired by airlines right now, and IMHO probably not ever again.
I think I understand
You are happy that everybody now has the freedom not to be able to afford health care.
Excellent.
A bright shining new dawn indeed.
Moggy
A rather deliberate mis-statement of the argument, and by a moderator no less. Shame.
I think I understand
You are happy that everybody now has the freedom not to be able to afford health care.
Excellent.
A bright shining new dawn indeed.
Moggy
A rather deliberate mis-statement of the argument, and by a moderator no less. Shame.
Oh Moggy.
Of course it’s a good thing. By denying free health care to all, people like Ship 741 can, as one who has, look down on those who have not, with a feeling of superiority.
“one nation under God, indivisible, with liberty and justice for all.”
Indivisible except by the dollar and with liberty and justice for those who can afford a good lawyer.
Regards,
kev35
Thank you for at least saying “free,” most people say, “denying health care” which is not the same.
FYI, most of the amublance chasing lawyers work on commission…ie., you don’t need any money to hire them. After they get their huge court settlement, the costs are passed on to everyone else.
Oh Moggy.
Of course it’s a good thing. By denying free health care to all, people like Ship 741 can, as one who has, look down on those who have not, with a feeling of superiority.
“one nation under God, indivisible, with liberty and justice for all.”
Indivisible except by the dollar and with liberty and justice for those who can afford a good lawyer.
Regards,
kev35
Thank you for at least saying “free,” most people say, “denying health care” which is not the same.
FYI, most of the amublance chasing lawyers work on commission…ie., you don’t need any money to hire them. After they get their huge court settlement, the costs are passed on to everyone else.
Every American has health care….and all the illegals too. It is against the law for an emergency room to turn someone away who needs medical care.
It’s just not free, ie., it has a cost and the person receiving the care is supposed to pay for it.
In other words, everyone who lives a decent lifestyle doesn’t have to subsidize the lifestyles of those who endanger themselves through drugs, unsafe sex, etc.
Every American has health care….and all the illegals too. It is against the law for an emergency room to turn someone away who needs medical care.
It’s just not free, ie., it has a cost and the person receiving the care is supposed to pay for it.
In other words, everyone who lives a decent lifestyle doesn’t have to subsidize the lifestyles of those who endanger themselves through drugs, unsafe sex, etc.