Lockheed L-1011-8

KJ_Lesnick

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I remember hearing of an ultra-long ranged L-1011 model with an extra 20% wing-area, more powerful engines and a small fuselage stretch called the L-1011-8.4...

Does anybody have any diagrams, or sketches of the L-1011-8 series (particularly the 8.4)


KJ Lesnick
 

flateric

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1011-8 [CORRECTED - THIS IS *NOT* 1011-8]
Thanks to Caravellarella for noticing a mistake.
 

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KJ_Lesnick

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Thanks!

You know, I actually thought the L-1011-8.4 was only stretched to like 182 or 184 feet or something.

BTW: What modifications did they make to the main landing-gears to deal with the increased weight? (The DC-10 for example required a center-wheel leg added to deal with footprint pressure) Also, do you have any overhead shots of the L-1011-8's? I'm wondering what the wing-mods would have looked like.


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flateric

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No, to my sorrow, nothing comes to mind at the moment that I have.
May be this book has it http://www.amazon.com/Lockheed-L-1011-TriStar-AirlinerTech-Vol/dp/158007037X/ref=pd_bbs_sr_3?ie=UTF8&s=books&qid=1208731006&sr=8-3
 

Caravellarella

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Re: Lockheed L-1011-8 Intercontinental TriStar project......

Dear Flateric, that picture looks more like the L-1011-300 which was intended to be a basic stretch of the standard domestic TriStar. The L-1011-8 only featured a stretch in the centre fuselage to accomodate the slightly larger wing chord. I have an old Flight International somewhere which shows how the wing was increased in size to accomodate more fuel and a six-wheel main undercarriage bogie. I'll try to find it, but Hesham might find it in Flight's on-line archive before I do......

All best wishes, Terry (Caravellarella).
 

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flateric said:
No, to my sorrow, nothing comes to mind at the moment that I have.
May be this book has it http://www.amazon.com/Lockheed-L-1011-TriStar-AirlinerTech-Vol/dp/158007037X/ref=pd_bbs_sr_3?ie=UTF8&s=books&qid=1208731006&sr=8-3

I have that book and I don't recall anything about the -8 proposal. I"ll have to check again.
 

flateric

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http://www.flightglobal.com/pdfarchive/view/1969/1969%20-%202820.html
http://www.flightglobal.com/pdfarchive/view/1969/1969%20-%202821.html

Shame on me, I was confused with Lockheed Horizon article chapter of 1011-8 accompanied with above posted side views.
More written stuff on 1011-8 from Lockheed Horizon will be posted on the evening.
 

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flateric

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Promised L-1011-8 extract from Lockheed Horizons Issue 8
 

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Caravellarella

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Re: Lockheed L-1011-8 Intercontinental TriStar project......

Dear Boys and Girls, I've just bought some Lockheed drawings of a slightly larger iteration of the intercontinental Lockheed TriStar derivative. I believe it is the original and larger L-1011-8 rather than the L-1011-8.4 previously illustrated. May I scan and post the images to share with you?

Terry (Caravellarella)
 

Jemiba

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OM said:
...Wait - there's girls here? ??? :eek:

As we don't know for sure, it's just a simple matter of politeness, I think. ;)
 

Caravellarella

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Re: Lockheed L-1011-8.4 Intercontinental TriStar project......

Dear Boys and Girls (or anyone in between) here is a contemporary article in French I've found describing the L-1011-8.4 Intercontinental TriStar (which is a "project", but which isn't "secret") and the TriStar programme in general. It changes my understanding of how the L-1011-8.4 wing was enlarged from the wing used on the standard L-1011-1. I had previously believed the wing was stretched at the root so that the engines were moved outboard; this article implies by illustration that the wing-tip and the chord of the leading edge and trailing edge was extended instead :-\......

The article comes from the 15th December 1969 issue of Aviation Magazine International......

Terry (Caravellarella)
 

Caravellarella

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Re: Lockheed L-1011-8 Intercontinental TriStar project......

Dear Boys and Girls, to add to the confusion about the L-1011-8, here are 2 images of Lockheed origin showing a different and longer fuselage stretch of 160" to the original L-1011-1 fuselage......

Terry (Caravellarella)
 

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carsinamerica

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<quote>Dear Boys and Girls, to add to the confusion about the L-1011-8, here are 2 images of Lockheed origin showing a different and longer fuselage stretch of 160" to the original L-1011-1 fuselage......</quote>

Years late to this discussion, but I'm thinking that Terry's last drawings shows the original -8 design, not the later -8.4 proposal.

From Flight International, 1969 (https://www.flightglobal.com/pdfarchive/view/1969/1969%20-%200833.html):

<quote>"Lockheed's latest proposals for a long-range version of the L-1011 TriStar are based on an enlarged airframe with some 20 per cent more wing area, a fuselage 13ft 6in longer (maximum seating capacity up from 345 to 390) and gross weight up from 409,0001b to 545,0001b, giving a capacity-payload range of 5,000 miles.... All the stretched versions are at present known as the L-1011-8, but there are numerous specification variables — including the vital question of choice of engine—at this stage."</quote>

That dovetails almost perfectly with the 3-views posted.

Shortly thereafter, it was dubbed the L-1011 Intercontinental (http://www.flightglobal.com/pdfarchive/view/1969/1969%20-%203237.html), and "all 'dash' designations have now been dropped," so said Flight.

There's another proposal I'm trying to find out about, though. It's the L-1011-3. As best I can understand, it's described as a stretch of the L-1011-2 (later dubbed the L-1011-200 in service), using more powerful Rolls-Royce RB211 engines. I can't find any details about the stretch through Google searches, though, except in foreign-language Wikipedia articles, which mention a stretch of 20-40 feet, which is a bit vague. Has anyone ever heard of it?
 

Caravellarella

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How confusing, have the L-1011-8/L-1011-8.4 & the L-1011-3/L-1011-300 topics been merged? ???

Terry (Caravellarella)
 

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