Moderators: richierich, ua900, hOMSaR

 
Max Q
Topic Author
Posts: 8171
Joined: Wed May 09, 2001 12:40 pm

L1011, so many versions ?

Sat Jun 06, 2020 12:29 pm

L1011-1

L1011-50

L1011-100

L1011-150

L1011-200

L1011-250

L1011-500


If I have it right, always found it a bit puzzling there were so many different versions of the Tristar, the DC-10 had the -10 -15 -30 and 40 series, four sub types whereas the L1011 had seven.
The best contribution to safety is a competent Pilot.


GGg
 
atlamt
Posts: 253
Joined: Thu Sep 13, 2001 12:15 am

Re: L1011, so many versions ?

Sat Jun 06, 2020 1:19 pm

The -1 is the original design.
I’m going off memory so I hope I still remember this stuff.
-100 was an increased gross weight model.
-200 had more powerful engines
-250 had more “upgrades” I can’t remember specifics.
-500 was a shorter fuselage long range model.
Those were all factory built variants.

-50 and -150 were -1 airframes modded after delivery. I know they both increased gross weight but I don’t remember details.
Fwd to MEL and Placard
 
User avatar
747classic
Posts: 3049
Joined: Sat Aug 15, 2009 9:13 am

Re: L1011, so many versions ?

Sat Jun 06, 2020 1:41 pm

Because Lockheed indicates most operating weight upgrades by a different version (subtype)
Only the dash 1, 100, 200 and 500 were factory built.
The L1011-50, L1011-150 and L1011-250 are not factory built but only weight upgrades.(with sometimes more powerfull engines to obtain that weight increase)

Both Boeing and McDonnell Douglas are not indicating each weight increase with a new sub-model, the actual operating weights are mentioned in the relevant AFM.

Note : In the Lockheed L1011 Type Certificate A23WE only 4 sub types are mentioned :
L-1011-385-1
L-1011-385-1-14
L-1011-385-1-15
L-1011-385-3

See : https://rgl.faa.gov/Regulatory_and_Guid ... /a23we.pdf
Last edited by 747classic on Sat Jun 06, 2020 1:53 pm, edited 1 time in total.
Operating a twin over the ocean, you're always one engine failure from a total emergency.
 
citationjet
Posts: 2547
Joined: Sun Mar 09, 2003 2:26 am

Re: L1011, so many versions ?

Sat Jun 06, 2020 1:50 pm

The various versions were because heavier, longer range versions were not initially offered. Model changes were required to compete with the DC-10.

A good article that describes the L-1011 variants:
https://aircraft.fandom.com/wiki/Lockheed_L-1011_TriStar
Boeing Flown: 701,702,703;717;720;721,722;731,732,733,734,735,73G,738,739;741,742,743,744,747SP;752,753;762,763;772,773,788.
 
User avatar
Starlionblue
Posts: 19872
Joined: Fri Feb 27, 2004 9:54 pm

Re: L1011, so many versions ?

Sun Jun 07, 2020 12:53 am

Another L-1011 version breakdown.

http://aviation.rosboch.net/?p=29
"There are no stupid questions, but there are a lot of inquisitive idiots." - John Ringo
 
User avatar
DL_Mech
Posts: 2437
Joined: Fri Feb 18, 2000 7:48 am

Re: L1011, so many versions ?

Sun Jun 07, 2020 3:24 am

IIRC the -50 was a heavier weight landing gear on a late build -1 airplane. The -100 has increased center tank capacity. The -200 is a -100 with -524 engines. The -250 was a Lockheed designed structural mod for late -1 airplanes with Increased tankage over the -100/-200 and -524 engines. The -500 is the short body with -524s only.
This plane is built to withstand anything... except a bad pilot.
 
User avatar
SheikhDjibouti
Posts: 2052
Joined: Sat Sep 30, 2017 4:59 pm

Re: L1011, so many versions ?

Sun Jun 07, 2020 9:47 am

Max Q wrote:
L1011-1
L1011-50
L1011-100
L1011-150
L1011-200
L1011-250
L1011-500

If I have it right, always found it a bit puzzling there were so many different versions of the Tristar, the DC-10 had the -10 -15 -30 and 40 series, four sub types whereas the L1011 had seven.
Four? I'm puzzled by that myself.
From another perspective, I see the DC-10 with EIGHT sub-types (one more than the L1011 !)
Here are the missing four;
DC-10-10CF
DC-10-30CF
DC-10-30ER
DC-10-30AF

In truth, in both cases many of the differences between models were hard to identify, and barely justified a new description.
In reality, the L1011 came in two fuselage lengths (hence the L1011-500), whilst the DC-10 came with different wingspans.

The rest is all down to the respective Marketing Depts. :duck:

Then again, what else would us avgeeks have to talk about, eh?
Nothing to see here; move along please.
 
BravoOne
Posts: 4094
Joined: Fri Apr 12, 2013 2:27 pm

Re: L1011, so many versions ?

Sun Jun 07, 2020 4:21 pm

As I recall CAL had a couple of DC10-10CFs. Who else has this model?
 
MO11
Posts: 1380
Joined: Sun Jan 08, 2017 5:07 pm

Re: L1011, so many versions ?

Mon Jun 15, 2020 8:29 pm

SheikhDjibouti wrote:
Max Q wrote:
...the DC-10 had the -10 -15 -30 and 40 series, four sub types....

Four? I'm puzzled by that myself.
From another perspective, I see the DC-10 with EIGHT sub-types (one more than the L1011 !)
Here are the missing four;
DC-10-10CF
DC-10-30CF
DC-10-30ER
DC-10-30AF



DC-10-10
DC-10-15
DC-10-30
DC-10-40
DC-10-10F
DC-10-30F
DC-10-40F

Any other nomenclature you could scribble on the side of the airplane, but wouldn't be on the Airworthiness Certificate.
 
vikkyvik
Posts: 12558
Joined: Thu Jul 31, 2003 1:58 pm

Re: L1011, so many versions ?

Tue Jun 16, 2020 4:59 pm

SheikhDjibouti wrote:
whilst the DC-10 came with different wingspans.


Don't forget the center landing gear, which I think was only on the -30 and -40.
I'm watching Jeopardy. The category is worst Madonna songs. "This one from 1987 is terrible".
 
Max Q
Topic Author
Posts: 8171
Joined: Wed May 09, 2001 12:40 pm

Re: L1011, so many versions ?

Tue Jun 16, 2020 5:20 pm

I think there was a difference in fuselage length between the DC10-10 and -30 versions ?
The best contribution to safety is a competent Pilot.


GGg
 
User avatar
novarupta
Posts: 65
Joined: Wed Feb 08, 2006 10:32 am

L1011, so many versions ?

Tue Jun 16, 2020 5:50 pm

SheikhDjibouti wrote:
whilst the DC-10 came with different wingspans.


All DC-10s have the same wingspan as far as I’m aware, the main differences were powerplant options and weights (with the associated landing gear changes).

L1011-500s did have a slight wingspan increase though.
 
User avatar
Polot
Posts: 10448
Joined: Thu Jul 28, 2011 3:01 pm

Re: L1011, so many versions ?

Tue Jun 16, 2020 6:13 pm

Max Q wrote:
I think there was a difference in fuselage length between the DC10-10 and -30 versions ?

All DC-10s had the same fuselage length. The variants had differing overall lengths depending on the engines installed though (since the center engine juts out past the the end of the fuselage).

novarupta wrote:
SheikhDjibouti wrote:
whilst the DC-10 came with different wingspans.


All DC-10s have the same wingspan as far as I’m aware, the main differences were powerplant options and weights (with the associated landing gear changes).

L1011-500s did have a slight wingspan increase though.

The DC-10-30/40 has a larger wingspan than the -10, by about 10’/3m. As you mention the L-1011-500 also had a larger wingspan than its siblings, by just under 10’/3m.
 
User avatar
novarupta
Posts: 65
Joined: Wed Feb 08, 2006 10:32 am

Re: L1011, so many versions ?

Tue Jun 16, 2020 7:28 pm

Polot wrote:
The DC-10-30/40 has a larger wingspan than the -10, by about 10’/3m. As you mention the L-1011-500 also had a larger wingspan than its siblings, by just under 10’/3m.


Thanks much, I stand corrected

Who is online

Users browsing this forum: No registered users and 16 guests

Popular Searches On Airliners.net

Top Photos of Last:   24 Hours  •  48 Hours  •  7 Days  •  30 Days  •  180 Days  •  365 Days  •  All Time

Military Aircraft Every type from fighters to helicopters from air forces around the globe

Classic Airliners Props and jets from the good old days

Flight Decks Views from inside the cockpit

Aircraft Cabins Passenger cabin shots showing seat arrangements as well as cargo aircraft interior

Cargo Aircraft Pictures of great freighter aircraft

Government Aircraft Aircraft flying government officials

Helicopters Our large helicopter section. Both military and civil versions

Blimps / Airships Everything from the Goodyear blimp to the Zeppelin

Night Photos Beautiful shots taken while the sun is below the horizon

Accidents Accident, incident and crash related photos

Air to Air Photos taken by airborne photographers of airborne aircraft

Special Paint Schemes Aircraft painted in beautiful and original liveries

Airport Overviews Airport overviews from the air or ground

Tails and Winglets Tail and Winglet closeups with beautiful airline logos