Sponsor Message:
Aviation Technical / Operations Forum
My Starred Topics | Profile | New Topic | Forum Index | Help | Search 
Unknown Business Jet  
User currently offlineSovietjet From Bulgaria, joined Mar 2003, 2616 posts, RR: 17
Posted (11 years 4 months 2 days 10 hours ago) and read 2542 times:
Support Airliners.net - become a First Class Member!

I saw a movie with Silvester Stallone yesterday about some criminals that jacked money from a plane in flight and while flying over the Swiis Alps or something and then they crash landed and the movie went on...

My question is...what was the small bizjet they were flying in? It was about as big as a Yak-40 and had four tail-mounted engines like an Il-62 or VC-10. Also it had built-in fuel tanks in the wings sort of like a Comet 4 but bigger in size and located in the middle of the wing and extending back like those gear wells on every Tupolev. What is this plane called? I think it looks really cool. And why does it need 4 engines? I mean can't they put 2 engines like a Gulfstream?

9 replies: All unread, jump to last
 
User currently offlineLY744 From Canada, joined Feb 2001, 5536 posts, RR: 10
Reply 1, posted (11 years 4 months 2 days 9 hours ago) and read 2509 times:

Lockheed Jetstar most likely.


View Large View Medium
Click here for bigger photo!

Photo © Europix



The thing dates back to the late 50's, so that explains why it has 4 engines...  Smile

LY744.



Pacifism only works if EVERYBODY practices it
User currently offlineCitationJet From United States of America, joined Mar 2003, 2444 posts, RR: 3
Reply 2, posted (11 years 4 months 2 days ago) and read 2454 times:

I have seen the movie, and I agree with LY744 it is a Lockheed Jetstar. Some people consider this to be the very first business jet. It predates the LearJet. However I think it was mainly used for military transport. The two pods on the wings are fuel tanks, due to the four engines.


Boeing Flown: 701,702,703;717;720;721,722;731,732,733,734,735,737,738,739;741,742,743,744,747SP;752,753;762,763;772,773.
User currently offlineIMissPiedmont From United States of America, joined May 2001, 6305 posts, RR: 33
Reply 3, posted (11 years 4 months 1 day 23 hours ago) and read 2446 times:

Some people would be wrong indeed. I believe the MS-760 would take that honor.

Regardless, the only aircraft fitting the description is the L-1329. The most beautiful small jet of all time, in my opinion. I just saw one land at TUS yesterday and almost.........well, never mind but it almost always takes a woman to do that.  Smile/happy/getting dizzy

And no, most were civilian owned,



Damn, this website is getting worse daily.
User currently offlineJETSTAR From United States of America, joined May 2003, 1650 posts, RR: 10
Reply 4, posted (11 years 4 months 1 day 2 hours ago) and read 2383 times:
Support Airliners.net - become a First Class Member!

As you can tell by my user name, the JetStar is my favorite airplane.

A brief history of the Lockheed JetStar.

In response to a request form the US Air Force in the late 1950’s for a 9 -10 passenger utility jet transport, Lockheed designed the JetStar and won the competition against a design from McDonnell Aircraft and the JetStar was given the designation C-140. At about the same time the Air Force issued a requirement from a smaller jet transport and North American Aviation won the contract and built the Saberliner and it was called the T-39. Due to politics the Air Force ordered over a hundred T-39’s, but eventually ordered only 16 JetStars. To appease Lockheed for the small order, the Air Force allowed Lockheed to sell the JetStar as a corporate jet and the first 15 were sold commercially before the Air Force received its first one. The FAA for many years operated the first production JetStar with the registration number N1.


View Large View Medium
Click here for bigger photo!

Photo © Mel Lawrence




In Air Force use, some were used as VIP transports, with one serving as Air Force Two for the Vice President, but if the President needed to fly into a smaller airport, he used a JetStar and then it was Air Force One. One of these VIP JetStars is now on display at the Air Force Museum at Wright Patterson Air Force Base in Dayton, OH.


View Large View Medium
Click here for bigger photo!

Photo © Ben Wang



A total of 162 first generation JetStar’s were built powered by Pratt & Whitney JT12 engines. An additional 40 second generation JetStars were built and powered by Airesearch TFE 731 fan engines and is known as the JetStar II. The official Lockheed designation is L-1329. All JetStars were built at the Lockheed plant in Marietta GA. Lockheed used the word “star” in some of their civilian airplanes, also as in TriStar & LoadStar. Lockheed also used Constellation and Electra as names of their aircraft. The P-80 fighter was the “Shooting Star”

The JetStar was the first real corporate jet and was way ahead of its time when introduced in the early 60’s. It was so far ahead that a lot of corporate chief pilots who were World War 2 trained pilots and at the time were flying DC-3’s, Convair 240’s and Lockheed Loadstars were afraid of the airplane and would not recommend it to their companies. Most of these pilots were used to flying slow 2 engine transports and jets, especially a 4 engine one were a whole new and frightening world to them. But for those who did transition to the JetStar, they found it was a docile airplane to fly. It had the title of the Cadillac of the skies because of its handling.

A lot of major corporations operated JetStars at one time including Ford, Xerox, Union Carbide, Exxon, Mobil and Gulf Oil to name a few. The JetStar was replaced as the queen of the corporate fleet when the longer range and larger Gulfstream 2 was introduced the late 1960’s. Elvis Presley had a JetStar and it is on display next to his Convair 880 at Graceland.

The JetStar’s major shortcoming was its range, it could not make it from coast to coast nonstop and to Europe it required 2 fuel stops, in Gander and Shannon. The JetStar II with its more fuel efficient fan engines could make it to Europe and coast-to-coast non stop. The original JetStar had about 3½ hours endurance and at that time you should be on approach so a landing could be made with enough fuel reserve for a go around.

It had a 6’1” cabin, fully enclosed aft lavatory and galley and depending on the cabin configuration sat up to 9 passengers with 6 seats and a 3-place couch. Almost all were equipped with onboard auxiliary power units and was self sustaining.


View Large View Medium
Click here for bigger photo!

Photo © Julian Whitelaw



The wing pods seen in the photo are auxiliary fuel tanks and are in addition to the 4 integral wing fuel tanks. Total fuel capacity was 2660 gallons in the 6 fuel tanks with the aux tanks holding 565 gallons each. FAA regulations require all transport category aircraft to have a dedicated fuel tank for each engine for take off and landing. For takeoff the fuel selectors are set for tank to engine configuration with each of the four engines drawing fuel from its respective internal tank. After takeoff the fuel selectors are switched to the auxiliary fuel tanks with the left engines, #1 & 2 drawing fuel from the left aux tank and the right engines, #3 & 4 from the right tank. Once all the fuel is used up in the aux tanks the engines would start drawing from the internal tanks and the aux tank fuel boost pump would be shut off and the fuel selectors switched back to the tank to engine configuration for the rest of the flight.

One of the easy ways of determining the version JetStar, on the original JetStar the aux fuel tank is mounted with the wing going through the middle of the tank and on the modified and JetStar II’s the tank is mounted underneath the wing. The aux tank had to be lowered because the airflow over the original aux tank affected the larger fan engines. And the easy way to tell the apart a modified JetStar from a JetStar II is the newer model has an air intake at the base of the vertical fin while the modified JetStar does not have this intake at this location.


View Large View Medium
Click here for bigger photo!

Photo © Johan Ljungdahl
View Large View Medium
Click here for bigger photo!

Photo © Europix



The first JetStar was built as a twin engine airplane using British engines and smaller external aux tanks, but it could not meet Air Force second segment climb requirements so to meet this rule Lockheed installed the 4 Pratt’s instead. But with the increased fuel consumption more fuel capacity was needed so instead of redesigning the wing, the external fuel tanks were enlarged. Also the main landing gear was changed from a single wheel to dual wheels.


View Large View Medium
Click here for bigger photo!

Photo © John P. Stewart



Of the 162 original JetStars built about 75 were modified during the late 1970’s with TFE 731 engines and they were called 731 JetStars. Almost all the original JetStars still flying today have this mod because they meet stage 3 noise requirements.

One JetStar was used in the James Bond movie Goldfinger. This was a Lockheed demo airplane and eventually was sold to Ogden Corp. and based in White Plains NY (HPN).

TWA also operated 2 JetStars as training airplanes for their 707 and 727’s before flight simulators came along. One cockpit was modified to the same configuration as a 707 and the other as a 727 with the same flight instruments and control panels as their big brothers. .



View Large View Medium
Click here for bigger photo!

Photo © George W. Hamlin



Also Eastern Airlines at one time operated a JetStar, known as the WisperStar.

One unique feature of the JetStar was instead of the horizontal stabilizer being adjustable during flight, the entire tail structure moved on a pivot at the base of the tail structure. There is only one other airplane that has this feature, the single engine Mooney. And the reason for this design is that when Al Mooney, who designed the Mooney sold his airplane business, he went to Lockheed as an engineer and he was one of the engineers who worked on the Jetstar. In the photo below at the base of the tail there is a exposed polished metal plate extending from the front to the back of the tail section, this is where the front of the tail section tilted up or down from inputs from the pilot. Also is a view of the thrust reversers in their extended position.


View Large View Medium
Click here for bigger photo!

Photo © AirNikon



Lockheed being a military oriented company decided not to continue civilian production after the 40 JetStar II’s were built because the Air Force was not interested in replacing their older JetStar’s with newer ones. The Air Force already had ordered Gulfstreams instead as their VIP airplanes and the C-140 JetStars were retired after a long career.

The JetStar was the most complex corporate jet built, with its 4 engines and multiple back up systems and it was considered a mini 707, but it had none of today’s modern technology. But for a complex airplane, it was very easy to maintain, basically a one mechanic airplane and a delight to fly, very forgiving,
A pilot’s airplane.


User currently offlineMD-90 From United States of America, joined Jan 2000, 8508 posts, RR: 12
Reply 5, posted (11 years 4 months 3 hours ago) and read 2294 times:

What is the L-1329? Never heard of it, unless you're referring to the L-139, which is definately not a bizjet.

User currently offlineGDB From United Kingdom, joined May 2001, 13229 posts, RR: 77
Reply 6, posted (11 years 4 months 3 hours ago) and read 2291 times:

Really fascinating post JETSTAR, thanks.

The first time I 'saw' one was in the James Bond film 'Goldfinger', but you still saw a few for real at LHR in the 1980's, looked an impressive beast close up.
Once, in 1983, one was in a BA hangar, (at the time this TBD hangar had space for some biz-jets to be parked, mostly HS-125s, but the odd more exotic one, like a JetStar.
I look at the pics I took, (no scanner sadly!), in TBD 20 years ago, and suddenly feel very old!
Seems like yesterday.


User currently offlineJETSTAR From United States of America, joined May 2003, 1650 posts, RR: 10
Reply 7, posted (11 years 3 months 4 weeks 1 day 23 hours ago) and read 2263 times:
Support Airliners.net - become a First Class Member!

Lockheed’s model designation for the JetStar is L-1329, manufactured by Lockheed-Georgia in Marietta GA.

There are 3 models of the JetStar, the original model powered by P&W JT12-6A engines is known as a JetStar-6, model number L-1329-23, The later version powered by P&W JT12-8A engines is known as a JetStar-8, model number L-1329-24 and the JetStar II powered by Airesearch TFE 731 engines is an L-1329-25.

Most of the original –6 models were upgraded to –8 engines which increased the maximum gross weight and engine thrust. Also the –8 airframe upgrade was needed for the re-engining program which replaced the P&W’s with the same engines used on the JetStar II, these models are known as 731 JetStar’s





User currently offlineSovietjet From Bulgaria, joined Mar 2003, 2616 posts, RR: 17
Reply 8, posted (11 years 3 months 4 weeks 1 day 16 hours ago) and read 2241 times:
Support Airliners.net - become a First Class Member!

Thanks alot everyone especially JETSTAR. This plane looks amazing. I guess i found a new favortie regional jet along with my old favorite the Yak-40.

User currently offlineJETSTAR From United States of America, joined May 2003, 1650 posts, RR: 10
Reply 9, posted (11 years 3 months 4 weeks 1 day 11 hours ago) and read 2226 times:
Support Airliners.net - become a First Class Member!

The JetStar was never used as a regional jet, some were and are still used in charter flying, but the JetStar was built as a utility transport for the US Air Force and as a corporate jet in civilian aviation.



Top Of Page
Forum Index

Reply To This Topic Unknown Business Jet
Username:
No username? Sign up now!
Password: 


Forgot Password? Be reminded.
Remember me on this computer (uses cookies)
  • Tech/Ops related posts only!
  • Not Tech/Ops related? Use the other forums
  • No adverts of any kind. This includes web pages.
  • No hostile language or criticizing of others.
  • Do not post copyright protected material.
  • Use relevant and describing topics.
  • Check if your post already been discussed.
  • Check your spelling!
  • DETAILED RULES
Add Images Add SmiliesPosting Help

Please check your spelling (press "Check Spelling" above)


Similar topics:More similar topics...
Boeing Business Jet As A Regular 737 posted Wed Nov 23 2005 09:53:15 by AirWillie6475
Unknown Business Jet posted Sun Jun 22 2003 18:57:44 by Sovietjet
Business Jet Minimum Equipment posted Fri May 24 2002 14:24:06 by Oecmr
How Much Water Can A Jet Take? posted Sat Dec 2 2006 21:11:45 by Kearney
What Happens If You Put Petrol In A Jet? posted Sat Dec 2 2006 02:53:27 by RichM
How Long Can You Store Jet Fuel? posted Wed Aug 23 2006 21:50:39 by A342
The Cone Behind The Last Turbine Stage In A Jet... posted Sat Aug 5 2006 20:21:05 by Lehpron
ATA 100 Codes For Business/Corporate Aircraft posted Tue Aug 1 2006 19:02:53 by Aogdesk
Please Help Identify This Jet Engine posted Fri Jul 14 2006 23:34:50 by EDDM
Engine Ingestion And Jet Blast Question posted Thu Jul 13 2006 19:14:48 by Phxplanes

Sponsor Message:
Printer friendly format