X-15 FLIGHT REQUEST

Flight No.: 3-61-91 Revised Scheduled Date: July 20, 1967

Pilot: William Dana

Purpose: 1. Cold-wall Heat Transfer - J. Watts
 

2. Wavey Panel Heat Transfer - J. Watts

3. Boost Guidance Checkout - M. Burke

4. PCM Checkout - B. Borek

5. Horizontal Tail Loads - L. Reardon


Launch: Hidden Hills #1 on a magnetic heading of 239°

MH-96 "ADAPTIVE," RC "OFF," BCS "OFF," BG engaged, acom = 10°, PAI switch to "HEADING," Ventral OFF.

Launch point coordinates: 35° 53' N, 115° 43' W.

Instrumentation Engineer: Bob Borek
 
 
 No. Time  Alt  V   a q            Event
             
1. 0 45 790 2 145 Launch, light engine at 100%T. Rotate at a = 10° to q = 20°.
             
2. 18 46 1600 10 560 q = 20°. Maintain q = 20° until h = 60K.
             
3. 43 60 2800 4 700 h = 60K. Pushover to "0" g. Maintain "0" g until H dot » 200 fps.
             
4. 69 76 4600 0 1125 At q » 1125 psf, reduce to Tmin (» 50%T). Increase a to maintain H dot » 150-200 fps. (a » 5°).
             
5. 70 76 4700 0 1200 Open speed brakes to maintain small (» 0.2g) positive acceleration. Push panel ejection button. (q and M » stable).
             
6. 95 81 5300 4 1200 Burnout. Begin turn to Edwards. Pick up H dot » -200 fps. Switch to a/b at pilot's convenience.
             
7. 110 82 4500 12 780 4500 fps. Retract SB to 20°.
             
8. 169 70 2900 1 605 Abeam Cuddeback. Speed brakes as required. Engine Master OFF.
             
9.           Pushover to "0" g until H dot » -600 fps. Pull up to a = 12° for tail load point.
             
10.           High Key - Check flap and "squat" circuit breakers in. Arm stick kicker and third skid. Engine Master "OFF." Window shade down.

NOTES:

1. q vernier will be set at 20°, a cross-pointer null at 2°.

2. Emergency lake: Cuddeback.

3. Flight duration: Approximately 8 minutes.

4. Flight plan based on 60,000lb thrust at 100%. Engine #103.

Flight plan based on 36,000lb thrust at 49.5%.

Total burn time at 100% T. (60,000lb) = 85.8 seconds.

Launch wt = 33,755lb Burnout wt = 15,068lb

c.g = c.g. =

5. Ground jettison check (Accounted for in wts. and burn time).

6. Precision attitudes preset: Pitch = 20° (110.0)

Roll = 0° (90.0)

Heading = 239°

7. Panel Jettison » 82 sec.

8. Panel will be jettisoned in any emergency above M » 3.0.
 

 GROUND RULES FOR NO LAUNCH:
  1. Radio, radar or TM malfunction.

2. FCS malfunction as indicated on analyzer check list.

3. Malfunction of inertial platform.

4. Malfunction of ball nose.
 

 ALTERNATE SITUATIONS AFTER LAUNCH:
  Failure   Action
       
1. Radio or radar   Proceed as planned.
       
2. Total Pitch Damper   Pushover to a = 2° in place of "0" g at 43 secs. Shutdown at 4500 fps. Eject blow-off panel. Vector to Hi-Key.
       
3. Total Roll Damper   Same as 2. (Turn Yaw OFF).
       
4. Total Yaw Damper   Same as 2. (Proceed as planned at pilot's discretion.)
       
5. Failure to Fixed Gain   Proceed as planned.
       
6. Ball Nose Failure   Switch to comp. a. Rotate at 2g. Pushover to An = 0.4g at 43 sec. Shutdown at 4500 fps. Eject blow-off panel. Vector to High-Key.
       
7. Attitude Failure   Use a = 5° in place of q = 20° at 18 sec. Same as 2. (If only q vernier, switch to PAI and proceed as planned.)
       
8. Inertial Failure   Without radio contact:

Same as 2. (Shutdown at 62 sec.)

With radio contact:

Proceed as planned.
       
9. Delayed Light   Rotate at 2g. Pushover at h = 57K. Proceed as planned.

INADVERTENT ENGINE SHUTDOWN:

0 - 40.5 sec Hidden Hills

40.5 - 49 sec Cuddeback (2700 fps)

49 - Up sec Edwards (3200 fps)
 

Approved

E. J. Adkins, Head X-15 Project Office