X-15 FLIGHT REQUEST

Flight No.: 2-23-43 Scheduled Date : May 24, 1962

Pilot: Major Robert White

Subject of Test : Evaluation of ASAS and 23° a stability.

Airplane Configuration: Basic X-15

Launch: Delamar Lake on magnetic heading of 206°. ASAS "Armed."
 
 
No. Time Alt V a Event
           
1. 0 45 790 0 Launch, light engine, increase to 100% T, rotate until 2g is attained.
           
2. 25 49 1800 9 Maintain 2g until q = 30°.
           
3. 35 56 2200 5 Pushover to 0 g.
           
4. 75 90 5500 0 Pullup to 2g (a » 10°), reduce to 30% T.
           
5. 93 95 5800 10 Burnout - pullup to a = 23°, trim to dh = 25°.
           
6. 95 98 5700 10 Disengage roll SAS.
           
7. 130 125 5000 23 Perform dv step input at pilot's discretion.
           
8. 140 130 4600 21 Reset SAS (rearm ASAS).
           
9. 150 140 4500 21 Using reaction controls set 20°a and 30° right roll - hold for 20 seconds.
           
10. 185 162 3800 20 Peak altitude.
           
11. 255 100 3900 20 Perform da step inputs after 1g attained during entry.
           
12. 280 80 3200 17 Disengage roll SAS - Extend speed brakes.
           
13. 300       Vector to high key for landing, start jettison, H2O2 "OFF," Reset SAS.

14. Check ventral armed, pressurize tanks.

15. Before APU shutdown, cycle controls, retract flaps, set stabilizer trim to zero, and push-to-test ball nose. Data off.
 
 

 Notes: 1. Duration of flight approximately 11 min.

2. q vernier will be set at 30°, a crosspointer will null at 20°.

3. Emergency Lakes: Hidden Hills and Cuddeback.

 Ground Rules for "No Launch" in addition to Operation Manual: 1. Malfunction of any SAS channel.

2. Malfunction of inertial platform attitudes.

3. Malfunction of hot nose.

4. Malfunction of microwave.

 Alternate Situations After Launch: 1. If engine light cannot be affected within 30 seconds, jettison propellants and land at Delamar Lake.

2. For delayed engine light add 5 seconds to pushover time and 5 seconds to pullup (75 sec) time.

3. If radio or radar fail proceed as planned.

4. For inadvertent engine shutdown; prior to 48 seconds, return to Delamar Lake, 48 to 65 seconds proceed to Hidden Hills, 65 to 70 seconds proceed to Cuddeback, above 70 seconds proceed to Rogers. Two engine starts may be attempted at any time.

5. For yaw damper failure do not increase a above 15°.

6. For total pitch or roll damper failure proceed to Rogers; do not increase a above 12°.

7. For ball nose failure maintain 2g until q = 30°, pushover at 35 seconds proceed to Rogers. Make ASAS checks during deceleration.

8. For attitude failure, maintain 1.5g until 40 seconds, pushover to 0 g proceed to Rogers, make ASAS checks during deceleration.