Thrust
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Stretch The L-1011: Why Not?

Fri Dec 26, 2003 2:25 am

I know for a fact that neither the DC-10 nor the L-1011 were ever stretched; only shrunk in order to increase range. I know Douglas had plans to build a stretched version of the DC-10-10, the DC-10-60, which could carry more passengers with increased range, but they were bought out by McDonnell before the project could get started. Did Lockheed have plans to stretch the L-1011 with increased range? Would that have been possible?
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yyz717
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RE: Stretch The L-1011: Why Not?

Fri Dec 26, 2003 2:36 am

There were no plans by Lockheed to ever stretch the L-1011.

I recall the DC-10-60 proposal. Although offered to airlines none were takers.
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CanadianNorth
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RE: Stretch The L-1011: Why Not?

Fri Dec 26, 2003 2:45 am

The DC-10 recieved a new flt deck, more modern engines and wings, and a streched fuselage. I believe it was called the MD-11.


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RE: Stretch The L-1011: Why Not?

Fri Dec 26, 2003 2:56 am

The L-1011 program did undergo a shrink with increased range though, resulting in the L-1011-500 series.
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planemaker
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RE: Stretch The L-1011: Why Not?

Fri Dec 26, 2003 3:00 am


Lockheed's goal was always to develop a family of airliners - here are just two of them: In autumn 1976, the manufacturer announced the L-1011-300 with 410 passengers on the maindeck and a further 45 in the underfloor cabin. This would have added 15 ft (4.5 m) each to the forebody and afterbody of the airframe, giving an overall length of 207 ft 4 in (63.2 m). By the end of 1980, Lockheed's developments focused on variants based on the Dash 500. The L-1011-500 Stretch would have combined the fuselage of the L-1011-200 and the active controls and wings of the Dash 500 to allow transatlantic capability.

And as everyone knows, the DC-10 stretch plans became the MD-11 which is 18.6 feet longer than the DC-10 and carries from around 285 in a three-class arrangement to 410 pax in an all-economy configuration.

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hmmmm...
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RE: Stretch The L-1011: Why Not?

Fri Dec 26, 2003 6:11 am

To significantly increase the fuselage, and therefore the weight of the airplane, you need to also increase the wing area. That means a lot of work and therefore a lot of expense.
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RE: Surviving A Crash!

Fri Dec 26, 2003 9:45 am

Because its a dumb idea

If someone wants to haul more people/freight the same or a longer distance Boeing or even Scarebus make larger airplanes. Some with more engines, some with less (twins are cheaper to operate and more reliable) so instead of investing many millions into an old, worn out airframe that takes 3 people to fly then paying many more millions to stretch it they can just go out and buy a 777/767/747/A330/whatever.

Face it the L-1011s and DC-10s have outlived their useful lives to most passenger carriers and will only widely see freight service in the future.
 
Thrust
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RE: Stretch The L-1011: Why Not?

Fri Dec 26, 2003 9:52 am

Startvalve, it is obvious that the L-1011s and DC-10s are not an option today. I simply meant why didn't Lockheed stretch these versions in the late 1970s, when the 767, 777, and 757 were not yet on the drawing board? I simply meant, was there a way to make the L-1011 longer ranged by stretching it and adding more passengers? I'm not interested in the expenses, simply puzzled why Lockheed did not stretch the L-1011 to compete with the MD-11.
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hmmmm...
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RE: Stretch The L-1011: Why Not?

Fri Dec 26, 2003 4:18 pm

I'm not interested in the expenses, simply puzzled why Lockheed did not stretch the L-1011 to compete with the MD-11.

But expense is at the heart of the answer to your original question. Stretching the plane significantly would have meant a wing re-design. Incidentally, the L-1011 program was cancelled in 1982, long before the MD-11 existed. Lockheed got out of the business because they were losing money on every L-1011 they produced. They had no interest in sustaining production, especially if they had to invest more money in a product line that bankrupted them. I wish they did, but they didn't.

All you need to do is research the topic on the internet, rather than here. There are lots of L-1011 sites on there.
An optimist robs himself of the joy of being pleasantly surprised