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2017-11-20

ENGINES
 
  THE  ATAR  ENGINES  
-
Historical Background

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

(S) Year

Qty

Engine.ID

Aircraft.ID

Aircraft Name

Length
mm
Diam
mm
Weight
lb
Thrust Dry
lbf
SFC Dry Thrust Wet
lbf
SFC Wet
(3) 1949

6

ATAR.101A

-

-

    1960.lb 4846.lbf 1.17 - -
(3) 1952

50

ATAR.101B

-

-

    2004.lb 5727.lbf 1.11 - -
(3) 1952

?

ATAR.101C

-

-

3680.mm 890.mm 2026.lb 6167.lbf 1.09 - -
(1) 1953

370

ATAR.101D

MD452C

Mystere IIC

    2015.lb 6608.lbf 1.09 - -
(3) 1956

600

ATAR.101E

SO504

Vautour II

    1916.lb 8150.lbf 1.06 - -
(3) 1955

?

ATAR.101F

-

-

    2819.lb 6388.lbf 1.18 8370.lbf 1.98
(1) 1957

460

ATAR.101G

MD456B

Mystere SMB2

6450.mm 940.mm 2731.lb 8150.lbf 1.06 9692.lbf 1.95
(4) 1948

?

ATAR.103

-

-

4300.mm 1200.mm 4405.lb 8811.lbf 1.03 - -
(4) 1951

-

ATAR.104

-

-

3750.mm 1150.mm 3524.lb 13216.lbf 1.05 - -
(1) 1956

?

ATAR.08B

-

-

    2377.lb 7775.lbf   - -
(1) 1959

176

ATAR.08C

MD480M

Etendard IV

    .lb 9692.lbf 0.97 - -
(1) 1959

419

ATAR.09B

MD550C

Mirage IIIC

    .lb 9361.lbf 1.01 13216.lbf 2.22
(2) 1962

1670

ATAR.09C

MD550E

Mirage IIIE

5900.mm 1000.mm 3207.lb 9471.lbf 1.01 13216.lbf 2.03
(1) 1963

265

ATAR.09K

MD580A

Mirage IVA

    .lb 10352.lbf 1.01 14758.lbf 2.16
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
 
The Atar Engines in AAC
 
As a matter of simplification, the number of Atar variants in AAC will be reduced which may imply a slight (theoretical) increase of performances for the varous aircrafts involved.  Also, these will apply to other French designed aircrafts otherwise equipped with British engines.  This will effectively reduce the list to two engines, each with its reheat variant.   Incidentally, the Super Mystere SMB2 is rechristened "Mystere IVB" in AAC.

Engine.ID

Thrust
Dry
: lbf
SFC
Dry
Thrust
Wrt
: lbf
SFC
Wet

Aircraft

Name

Aircraft

Name

Aircraft

Name

Aircraft

Name

ATAR.101E

8150.lbf 1.06 - -

MD450A

Ouragan

MD452C

Mystere.IIC

MD454A

Mystere.IVA

SO405

Vautour.II

ATAR.101G

8150.lbf 1.06 9700.lbf 1.95

MD456B

Mystere.VIB

 

 

 

 

 

 

ATAR.008C

10350.lbf 0.97 - -

MD480M

Etendard IVM

MD480P

Etendard IVP

MD480Z

Etendard IVZ

 

 

ATAR.009C

10350.lbf 0.97 14750.lbf 2.03

MD550C

Mirage.IIIC

MD550E

Mirage.IIIE

MD580

Mirage.IV