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NASA Project Mercury Working Paper No. 192 



POSTLAUNCH REPORT 
FOR 

MERCURY-REDSTONE NO. 3 
(MR- 3) 



CLASSIFICATION CNAN««?R T» 



NATIONAL AERONAUTICS AND SPACE ADMINISTRATION 
SPACE TASK GROUP 
Langley Field, Va. 
June 16. 1961 




POSTLAUNCH REPORT FOR MERCURY-REDSTONE NO. 3 
(MR-3J 



NASA Project Mercury Working Paper No. 192 



Editors: Jerome B. Hammack, Senior Editor 
Norman F. Smith 
J. D. Hodge 
Major Donald K. Slay ton 
Dr. William Augerson 
Paul C. Donnelly 



Authorized for Distribution: 




Walter C . Williams 
Associate Director 




Director 

NATIONAL AERONAUTICS AND SPACE ADMINISTRATION 
SPACE TASK GROUP 
Langley Field, Va. 
June 16, 1961 



FIGURE 7.3-2 PILOT VOICE COMMUNICATIONS DURING MR-3 FLIGHT 

TIME DURATION 
NUMBER MIN:SEC SECONDS VOICE 



1 


00:02.3 


3 


Ahh, Roger; lift-off and the 
clock is started 


2 


00:08.3 


2 


Yes sir, reading you loud and 
clear 


3 


00:25. 5 


8.5 


This is Freedom Seven. The 
fuel is go, 1.2 g, cabin at 
14 psi, oxygen is go 


4 


00 : 48. 5 


2.5 


Freedom Seven is still go 


5 


00:58.5 


8.5 


This is Seven. Fuel is go, 
1.8 g, 8 psi cabin, and the 
oxygen is go 


6 


01:21.5 


2.6 


Cabin pressure is holding at 
5.5. Cabin holding at 5.5 


7 


01 :33 


10 


ruci its go , 6 . d g, caoin 0 . O , 
oxygen is go, the main bus 24, 
and the isolated battery is 29 


8 


01 : 50. 5 


3 


Okay, it's a lot smoother now. 
A lot smoother 


9 


02 :01 


9 


Seven here. Fuel is go, 4 g, 
5.5 cabin, oxygen go, all 
systems go 


10 


02 ; 15 


1.5 


5 g 


11 


02 :22 


2.5 


Cut— off . Tower jettison green 


12 


02 :27. 5 


1.5 


Disarm 


13 


02:32.5 


2 


Capsule separation is green 


14 


02:35. 5 


6 


Periscope is coming out and 
the turn-around has started 


15 


02:50 


3 


ASCS is okay 


16 


02:53. 5 


2.5 


Control movements 



73 




FIGURE 


7-3- 


2 (Cont 


d) 






NUMBER 


TIME 
MIN:SEC 


DURATION 
SECONDS 


VOICE 


17 


03 


:04 


4 


.5 


Okay, switching to manual pitch 


18 


03 


:21 


2 


.5 


Pitch is okay 


19 


03 


:24 


4 


.5 


Switching to manual yaw 


20 


03 


:42 


5 




Yaw is okay. Switching to 
manual roll 


21 


03 


:55.5 


2 


5 


Roll is okay 


22 


03 


:59.5 


4 


5 


On the periscope. What a 
beautiful view 


23 


04 


:05. 5 


9 


5 


Cloud cover over Florida. 
3 to 4 tenths near the 
eastern coast. Obscured 
up to Hatteras 


24 


04 


:20.5 


8 


5 


I can see Okeechobee. 
Identify Andros Island 
Identify the Reefs 


25 


04 


44. 5 


4 




Start retro-sequence. Retro- 
attitude on green 


26 


04 


56.5 


2 


5 


Control is smooth 


27 


05 


13 


3 




Retro one, very smooth 


28 


05 


16.5 


1. 


5 


Retro two 


29 


05 


23.5 


2. 


5 


Retro three 


30 


05 


31 


2. 


5 


All three retros are fired 


31 


05 


35 


6 




Okay. Three retros have 
fired. Retro-jettison is back 
to arm. 


32 


05: 


45. 5 


1. 


5 


Negative 


33 


05: 


55 


3 




Switching to fly-by-wire 


34 


06: 


11 


2. 


5 


Roll is okay 



FIGURE 7.3-2 (Cont'd) 



TIME DURATION 

NUMBER MIN:SEC SECONDS 

35 06:16-5 4.5 

36 06:25 6 

3 7 06:30.5 3 

38 06:36.5 2 

39 06:44.5 2 

40 06:49 4.5 

41 07:04.5 6 

42 07:14 2 

43 07:25 3 

44 07:39 

45 07:48 

46 08:04 3 

47 08:10 7.5 

48 08:21 4 

49 08:27.5 2 

50 08:36.5 2 

51 08:44 4 



VOICE 

Roger; do not have a light 

I do not have a light. I 
see the straps falling away. 
I heard a noise. I will use 
override 

Override used, the light is 
green 

Ahh, Roger 

Periscope is retracting 

I'm on FBW. Going to re- 
entry attitude 

Okay, Buster. Re-entry 
attitude, switching to ASCS 
normal 

ASCS is okay 

Switching HF for radio check 

Ahh, Roger, reading you loud 
and clear HF, Deke r How me? 1 

Ahh, Reading you loud and 
clear HF, How me? 1 

Okay. This is Freedom Seven 

"G" build-up 3, 6, 9 

Okay - Okay 

Okay 

Okay 

This is Seven - Okay 



"HF was not received. 

75 



FIGURE 7.3-2 (Cont'd) 



TIME DURATION 

NUMBER MIN: SEC SECONDS 

52 08 : 51 3 

53 08:56 1.5 

54 08:58 4 

55 09:05 2 

56 09:14 2 

57 09:20 6 

58 09:35 1 

59 09:39 6 

60 09:48 8 

61 10:02 4 

62 10:06 2 

63 10:08 2 

64 10:15 2 

65 10:18 2 

66 10:22 4 

67 10:28 4 

68 10:40 2 



VOICE 
45,000 feet now 
40,000 feet 
I 'm back on ASCS 
35,000 feet 
30,000 feet 

Ann, Roger, Deke , reading 
you loud and clear. How me? 

Ann, Roger 

The drogue is green at 21,000. 
The periscope is out. The 
drogue is out. 

Okay at drogue deploy. I've 
got 70 percent auto - 90 
percent manual. Oxygen is 
still okay 

And the snorkels (out) at 
about 15,000 feet 

Emergency flow rate is on 

Standing by for main 

Main on green 

Main chute is reefed 

Main chute is green. Main 
chute is coming unreefed and 
it looks good 

Main chute is good. Rate 
of descent is reading about 
35 ft/sec. 

Hello Cap Com. Freedom Seven 
How do you read? 



FIGURE 7.3-2 (Cont'd) 



TIME DURATION 

NUMBER MIN:SEC SECONDS 

69 10:55 3 

70 11:03 14 

71 11:29 2 

72 12:36 3 

73 12:49 13 

74 14:03 3 

75 14:09 5 

76 14:52 l 

77 14:59 3 

78 15:05 4 



15:22 



VOICE 

Hello CARDFILE 23, this is 
Freedom Seven. Do you read? 

Affirmative Indian Cap Com, 
let me give you a report. 
I'm at 7,000 feet, the main 
chute is good, the landing bag 
is on green, my peroxide has 
dumped, my condition is good 

That is affirmative — please 
relay 

Hello CARDFILE 23, CARDFILE 23, 
Freedom Seven. Over. 

Ahh, this is Seven. Relay 
back to Cap Com please. My 
altitude now 4,000 feet, con- 
dition as before, the main 
chute is good, the landing 
bag has deployed, the 
peroxide has dumped 

Ahh, CARDFILE 23, Freedom 
Seven 

I'm about 1,500 feet now. The 
main chute still looks good. 
The rate of descent is 
indicating 30 ft/sec. 

Ahh, Roger 

This is Seven. Go ahead 

Negative. Just relaying my 
condition is still good. 
I'm getting ready for 
impact 

(Landing) 



77