(Sanitized)

• Document Type: CREST
• Collection: General CIA Records
• Document Number (FOIA) /ESDN (CREST): CIA-RDP63-00313A000600010009-6
• Release Decision: RIPPUB
• Original Classification: S
• Document Page Count: 2
• Document Creation Date: December 14, 2016
• Document Release Date: August 9, 2002
• Sequence Number: 9
• Publication Date: May 2, 1958
• Content Type: MEMO

Approved For Release SEC
',r
CIA-RDP6'3'6031 p00600010009-6
CHAL - 0045
Copy of 5
2 May 1955
MEmCRANDUM TO: Deputy Project Director
25X1 A SUBJECT
25X1 A 1. The following information was elicited from
this date. As pertains to the J-57/P31 Engine:
T.O. 35,000 70,Q
A. Specific Fuel Consumption 1.06 .95 1.13
B. Mass Air Flow 234#/sec 75#/sec 13#/sec'
C. Thrust 14,600, 3750 655-.
D. Compression Ratio 13.1 13.1 13:1
E. Engine Basic Weight
Thrust at 3700 37 3700
atd Altitudes;
F. Fuel Consumption and
(1)
Sea Level
a. Thrust
b. 1.06 Fuel Consumption
(2) 15,000 Feet
a. 7,000 Thrust
b. 1.015 Fuel Consumption
(3)
25,000 Feet
a. 5350 Thrust
b. 1.00 Fuel Consumption
(4) 35,000 Feet
a. 3750 Thrust
b. .95 Fuel Consumption
G. Turbine Inlet Temperature
(2
(3
Take Off - 1670?F
35,000 Feet - 1670?F
70,000 Feet - 1670?F
Approved For Release 2002/10/23EG P63-0J0313A000600010009-6
 -4./
Approved For Release 2002/1ST"~1 I RDP63-OM 3A0000600010009-6
CHAL - 0045
Page two of two
25X1A
Approved For Release 2002/1050 1RDP63-00313A000600010009-6