NASA-UAP-D017_Preliminary-Gemini-4-Crew-Debriefing_Part2_1965.pdf

DECLASSIFIED
Authority: NW 91526
CONFIDENTIAL
65
CLASSIFICATION CHANGE
To UNCLASSIFIED
By authority of PO 11652, 6-1-72
Changed by A. Bergstein Date NOV 20 1973
PRELIMINARY
GT-4 FLIGHT CREW DEBRIEFING TRANSCRIPT
PART II
Prepared By
Spacecraft Operations Branch
Flight Crew Support Division
June 18, 1965
This material contains information affecting the national defense of the United States within the meaning of the Espionage Laws, Title 18. U. S. C. Section 793 and 794, the transmission or revelation of which in any manner to an unauthorized person is prohibited by law.
Group 4: Downgrade at 3 y…

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# PREFACE

This preliminary transcript was made from voice tape recordings of the GT-4 flight crew debriefing conducted aboard the recovery ship, the USS Wasp, on June 9, 1965, and concluded at the Manned Spacecraft Center on June 12, 1965.

Although all the material contained in this transcript has been edited, the urgent need for the preliminary transcript by mission analysis personnel precluded a thorough editorial review prior to its publication. Errors in this transcript will be corrected as soon as possible and an official transcript will be published at a later date.

This…

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TABLE OF CONTENTS

|  Paragraph | Page number  |
| --- | --- |
|  8.0 SYSTEMS OPERATION |   |
|  8.1 Platform | 1  |
|  8.2 OAMS | 5  |
|  8.3 RCS | 17  |
|  8.4 Environmental Control System | 22  |
|  8.5 Communications | 68  |
|  8.6 Electrical System | 82  |
|  8.7 Computer | 87  |
|  8.8 Crew Station | 93  |
|  8.9 Bio-Medicat | 134  |
|  9.0 OPERATIONAL CHECKS |   |
|  9.1 Apollo Landmark Identification (D-6) | 144  |
|  9.2 Apollo Yaw Orientation | 168  |
|  9.3 One Attitude Thruster Failure Check | 171  |
|  9.4 Horizon Scanner Track Check | 172  |
|  9.5 Horizon Scanner C…

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12.0 PRE-MISSION PLANNING
12.1 Mission Plan (Trajectory) ... 234
12.2 Flight Plan ... 234
12.3 Spacecraft Changes ... 239
12.4 Mission Rules ... 240
12.5 Experiments ... 241
12.6 Training Activities ... 245

13.0 MISSION CONTROL
13.1 GO/NO GO's ... 249
13.2 PLA and CLA Updates ... 249
13.3 Consumables ... 249
13.4 Flight Plan Changes ... 250
13.5 Systems ... 254

14.0 TRAINING
14.1 Gemini Mission Simulator ... 255
14.2 LTV Simulation ... 260
14.3 Centrifuge ... 261
14.4 Translation and Docking Trainer ... 262
14.5 Planetarium ... 263
14.6 Systems Briefings ... 266
14.7 Flight Exp…

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8.0 SYSTEMS OPERATION

8.1 Platform

McDivitt Actually, the first portion of any alinement is to cage the thing. The case of caging the thing is much more important than the alinement itself. In the daytime I felt that I could cage the platform to a reference with an error plus or minus about 3 or 4 degrees in all axes. Did you think we could do that well?

White Only in the daytime.

McDivitt The yaw was a little problem. It took longer to get it, but if you kept after it for awhile, I felt that you could get down to just a few degrees.

White Within a couple of degrees.

McDivi…

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White I'm not sure.

McDivitt The caging of the thing with small-end-forward in the daytime was relatively easy. At night I don't think it would be quite that simple. I think what you would have to do at night time is to point the spacecraft down at the ground pretty much so you can see the track across the ground. I could see which way the land was moving under me. I felt--although I never did this--that if I could do that and then roll around to where I had no bank angle, and face in my yaw direction, either small-end or blunt-end-forward, stop the roll there and pitch up to th…