Lockheed Jetstar 3 project......

Caravellarella

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Dear Boys and Girls, here is an article in French announcing the development of a trimotor version of the L-329 Jetstar that resembles a scaled-down Lockheed TriStar. This Lockheed Jetstar 3 remained a "project"; and would have been powered by the then new Garrett-AiResearch ATF-3 cross-compounded turbofan engines (a kind of back-to-front, reverse-flow combustion engine; I've never been able to understand how this engine works, so all explanations will be greatfully received!)......

The article comes from the 1st November 1969 issue of Aviation Magazine International......

Terry (Caravellarella)
 

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fightingirish

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TriJetStar
This conceptual model image, released around 1969, looks like a cross between a JetStar executive transport and an L-1011 TriStar airliner. The caption reads: Lockheed-Georgia Company, Marietta, Ga., is studying possible follow-on configurations to the JetStar which will herald the advent of a second generation of corporate aircraft. Pictured here is a three-engine JetStar, with two engines wing-mounted and a third in the tail. Two other versions are also being studied.” The JetStar II—one of those other versions—kept the original four-engine configuration, but featured higher performing engines and incorporated other improvements. The JetStar II was first flown in 1976. The model is superimposed on a photo of the Marietta plant, but if this had been real, the aircraft would have crashed into the main assembly building!


Posted: 4 September 2015
Source: http://www.codeonemagazine.com/gallery_slideshow.html?item_id=4520
 

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Triton

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Model of Lockheed JetStar 3

Aviation Week & Space Technology October 6, 1969 p.67
 

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DermotODyna

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While the original post asked this question six years ago, the unusual design of the ATF3 engine is described in detail at: http://www.atf3.org/ATF3_Engine.html

The rest of the website devoted to it is worth a read as well. I found the low infrared signature reported during the Teledyne-Ryan Compass-Cope YQM-98A testing most interesting.
 

RAP

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AWST article
 

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