r

F'L 01,014?-INTERNAL LETTE RNORTH A MERICAN AVIATION, INC .

TOADDRESS/Show Dept. , Group,Div . & Location/

Weekly Progress Report(Test Systems Unit )

Week Ending 20 February 1965

PHONE 5107

SUBJECT

FORM 131-R-1 NEW 1 .63

Moisture Monitor and Flowmeter Calibration Systems (W . Reid/R . Milner)

Comments on Sketch SK10402 (100$) showing . the subjec tcalibration systems were issued in FL11 .--5»4128 .

I

ALTITUDE SIMULATION

J-2 Altitude-System - VTS-3A (0 . Haroldsen )

FL11-5.4150

DATE 22 February 196 5

E . G. Spencer FROM R. E, Fenton

096-211 ADDRESS - 096--211

Rocketdyne, SSFL Rocketdyne, SSFL

It has been observed that diffuser film-coolant does nothave an effect upon ejector performance : If the water

is not turned on until after altitude is established .Tests were conducted in which the steam was admitted

after the film-coolant . The results were degradedaltitude .

H2 - F Engine Prososal (H . Zweig/G. Gaylord)G

Studies were performed to determine adequate facilities

to test a 2500 lb H2 -- F2 thrust chamber with altitudesimulation. Three choices were analyzed : 1) The planned

system at PRA,. 2) A new system at PRA, 3) Nevada B . Thelatter was deemed most desirable for this program, and will

be proposed as such.

DESIGN REVIEW ,

Bravo Offsite LOX Storage (L. Oswalt )

Additional comments on Project 2835 "Bravo Offsite LOXStorage and Transfer System " (1000 were issued in

FL11 .5-4138 .

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IL TO : E . G . Spencer LFROM: R . E. Fenton 22 February 6

SUBJECT : Weekly Progress Report(Test Systems Unit )Week Ending 20 February 196 5

GAS SYSTEMS

Page 2

GN Cascade Modifications, Project 8001x22 (D . Land

The activation date of the CTL'-3 Cascade is pending the receipt

of the Goddard Valves . The contractor stated that if ;Ie 7a17es

are shipped per schedule .22 February, and are air freighted to

Los Angeles . Then the CTL-3 cascade should start activation on

26 February, and be operational by 5 March .

The Alfa/Bravo cascade will not be shut down for modification until

the CTL-3 cascade is operational.

Centralized Helium Dist ibution System Project K037-15; D . Lanal-T)

The 30% drawings and specifications have been received from D/022.

D/083 receives directions for this project from D/022 . Test Systems

and the test responsible engineer are directed to make all designreview comments to D/022. D/096-210 has recommended the flow meter

for this project in 7L..-210-5-331 .

SERVO SYSTEM S

EFL Test Stand 1A Eeli ;un Heat Exchanger U . Roark/j. 3unner )

A new 1" Annin valve has been installed in the helium heat exchangersystem. Pressure oscillations similar to those in the old systemwere noted. Controller parameters will be monitored in an attemp t

to isolate the causes of these oscillations . The system is presentlybeing operated in the manual mode during hot firings with 5% pressureregulation. -

VTS-3B Gimbal Actuators (W . Doi )

Two gimbal actuators were assembled and sent to the Canoga plant

for service prior to installation on the test stand .

VTS-3B Heat Exchanger Throttling System (K. Schurman/G . :Montgomery )

A request was received from D/096-213, ,T-2 Test, to provide a

throttling valve system for heat exchanger evaluation on TITS-3B .

Flow calculations were completed for selection of the regulatorvalve. A suitable valve was located and will be modified forregulator usage and for high temperature requirements .

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IL TO : E. G . Spencer IA 1-.5-41 ;0FROM : R. E . Fenton - 22 February ,965SUBJECT : Weekly Progress Repor t

(Test Systems Unit )

Week Ending 20 February 196 5

SERVO SYSTEMS (Continued)

?age 3

'ITS.-3B Heat Exchanger Throttling System (font l d ;

A servo controller is available and has been set-up for usage in

this system.

CTL-5 Turbo Pump Flow Controllers ( .R. Sturges )

An EWR has been issued to D/096-210 for modification of two -EK970 1r r ITT,. .-controllers i Or

I7-(]w control at C Tv ~T-+j-are SACL

CTIr-•II Module 3- +Iissile Tank Pressurizing Line Vibration SimulationK. Schurman `

An electro--hydraulic servo system ( 111-1600 Annin) for temperature

control is under consideration for the LH2-line upstream of .he 1 -;-

GH2 mixer; and two dome regulators are planned for the 1H2- i neupstream of the LH2 tank for pressure control .

CTL-IlI Module I (M Schurman )

An internal letter FL11-5-4141 was issued concerning APCO regulator

malfunctions at CTT~Ill Module I.

Servo-Valves (S . Goldstein)

MOOG has furnished to us four servo valves which they modifie das a solution to the first stage oscillation problem, These valves

will be evaluated by us and returned to MOOG . Preliminary tests

show that the oscillation has not been eliminated in these valvesbut has been attenuated.

Delta 3C Vent Controller (R . Ellis )

Wiring discrepancies were found in-the vent controller, and have

been corrected .

USEFF - Flowmeter Calibration (D. Fenwick )

A motorized Hoke valve was serviced and put back into use in the

MMH cubicle. A spare Fisher "Gismo" valve together with positioner,

transducer pressure regulator, and cylinder was sent to E.L. with

instructions for servicing .

SM 151401, "Servicing Instructions for Electrically Operated Metering

Valve", was written.

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IL TO : S . G . Spencer ?L11-5-4150

PROM : R . E. Penton 22 February 1965

SUBJECT : ;Meekly ?.ogress Report ?age 4

(Test Systems Unit )Neer Ending 20 February 196 5

SERVO SYSTEMS (Continued,)

3ravo-1 Heat Exchan er Control (X, Sehurman )

Two Mason-Neilan electro-pneumatic relays, Hodel 8003 for Domotion-

positioning received , and will be acceptance-tested.

, '.►~ R. E. Anton, YupervisorTest Systems UnitAnalysis and Equipment Sectio n

REE :ji

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