Background Notes - Updated : 2014-12-19 - 01:24

The SNECMA ATAR is a French axial-flow turbojet engine built by Snecma. It was derived from the German World War II BMW 018 design, and developed by ex-BMW engineers, among them pioneering Dr Hermann Östrich who participated in the design of the BMW 003 engine, through a progression of more powerful models. The ATAR name is derived from its original design group, Atelier technique aéronautique de Rickenbach near Lindau within the French Occupation Zone of Germany.

In October 1945, Dr Östrich is invited by French Authorities to come to work in France with SNECMA.  Assisted with a good hundred other engineers, he then started to work on a development of the BMW 003 engine for which the French Government ordered six test examples.  The engine was named ATAR 101, and the targeted thrust was 2000 kgp.  The first prototype of the engine (101.V1 or A1) was tested at 1700 kgp on March 26, 1948, and the second prototype at 2200 kgp on April 15, 1948

Summary Table
Source (1) : https://fr.wikipedia.org/wiki/Snecma_Atar
Source (2) : https://en.wikipedia.org/wiki/SNECMA_Atar
Source (3) : http://dev.museesafran.com/wp-content/uploads/2012/11/Rototo-bulletin-04-f%C3%A9vrier-1992.pdf
Source (4) : http://www.secretprojects.co.uk/forum/index.php?topic=456.5;wap2
Source (5) : 
Source (6) : 

(S) Year Engine Application Length Diam Weight Weight Thrust.Dry Thrust.Dry SFC.Dry Thrust.Wet Thrust.Wet SFC.Wet Industrial
Production
(3) 1949 ATAR.101A Testing     890.kg 1960.lb 2200.kgp 4846.lbf 1.17 /// /// /// 6
(3) 1952 ATAR.101B Testing     910.kg 2004.lb 2600.kgp 5727.lbf 1.11 /// /// /// 50
(3) 1952 ATAR.101C Testing 3680.mm 890.mm 920.kg 2026.lb 2800.kgp 6167.lbf 1.09 /// /// ///  
(1) 1953 ATAR.101D Mystere IIC     915.kg 2015.lb 3000.kgp 6608.lbf 1.09 /// /// /// 370
(3) 1954 ATAR.101E3 Vautour     882.kg 1943.lb 3500.kgp 7709.lbf 1.05 /// /// ///
(3) 1956 ATAR.101E5 Vautour     870.kg 1916.lb 3700.kgp 8150.lbf 1.06 /// /// /// 600
(3) 1955 ATAR.101F Testing     1280.kg 2819.lb 2900.kgp 6388.lbf 1.18 3800.kgp 8370.lbf 1.98  
(1) 1957 ATAR.101G SMB2 6450.mm 940.mm 1240.kg 2731.lb 3700.kgp 8150.lbf 1.06 4400.kgp 9692.lbf 1.95 460
(4) 1948 ATAR.103 Testing 4300.mm 1200.mm 2000.kg 4405.lb 4000.kgp 8811.lbf 1.03 /// /// ///  
(4) 1950 ATAR.104A Testing 3750.mm 1150.mm 1525.kg 3359.lb 5400.kgp 11894.lbf 1.07 /// /// ///  
(4) 1951 ATAR.104B Testing 3750.mm 1150.mm 1600.kg 3524.lb 6000.kgp 13216.lbf 1.05 /// /// ///  
(1) 1956 ATAR.8B Testing     1079.kg 2377.lb 3530.kgp 7775.lbf   /// /// ///  
(1) 1959 ATAR.8C Etendard IV     .kg .lb 4400.kgp 9692.lbf 0.97 /// /// /// 176
(1) 1959 ATAR.9B Mirage IIIG/CZ     .kg .lb 4250.kgp 9361.lbf 1.01 6000.kgp 13216.lbf 2.22 419
(2) 1962 ATAR.9C Mirage IIIE 5900.mm 1000.mm 1456.kg 3207.lb 4300.kgp 9471.lbf 1.01 6000.kgp 13216.lbf 2.03 1670
(1) 1963 ATAR.9K Mirage IVA     .kg .lb 4700.kgp 10352.lbf 1.01 6700.kgp 14758.lbf 2.16 265
(1) 1972 ATAR.9K50 Mirage.F1     .kg .lb 5000.kgp 11013.lbf 0.97 7200.kgp 15859.lbf 1.99 1014
(1) 1976 ATAR.8K50 S.Etendard     .kg .lb 5000.kgp 11013.lbf 0.97 /// /// /// 111
                             

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