X-15 FLIGHT REQUEST

Flight No.: 2-15-29 Scheduled Date : April 19, 1961

Pilot: Major Robert M. White

Subject of Test : Velocity buildup flight; aerodynamic heating; stability, control and performance research data.

Airplane Configuration: Basic X-15 with XLR-99 engine

Launch: Hidden Hills Lake on magnetic heading of 225°. SAS 4-4-6
 
 
No. Time Alt V a Event

 
 
           
1. *0 45 790 - Launch using side control stick, light engine, advance throttle to 100% T, rotate to 10° a.
           
2. 28 50 2000 10 Maintain 10° a until q = 30°.
           
3. 37 57 2400 3 Maintain 30° q. Pushover to zero g at 37 sec.
           
4. 67 88 4600 0 Hold zero g. Shut down engine at 67 seconds.
           
5. 73 95 4500 0 Perform rudder pulse.
           
6. 88 103 4400 0 Perform pitch pulse.
           
7. 100 105 4400 15 At peak altitude rotate to 15° a (»1g).
           
8. 110 105 4300 15 Perform aileron pulse.
           
9. 125 103 4100 15 **Extend speed brakes to max deflection.
           
10. 135 103 3900 15 Perform rudder pulse.
           
11. 145 102 3800 15 Perform pitch pulse.
           
12. 155 100 3700 15 Perform series of aileron pulses while decelerating to 3000 fps.
           
13. 195 85 3000 15 Initiate space-positioning turn. Perform pitch pulses while decelerating to V = 2000 fps.** Retract speed brakes.

14. Continue space-positioning to high key. **Obtain calibrate.

15. Check ventral armed, pressurize tanks.

16. Transfer to center stick for landing, 300 knot landing approach, jettison ventral three miles from touchdown, flaps and gear down - intended touchdown is two-mile marker.

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

# Time starts with onset of chamber pressure.

* Ground control call-out items if not reported by pilot.

 Notes: 1. Duration of flight approximately 10 min.

2. Emergency Lakes: Hidden Hills and Cuddeback.

 Ground Rules for "No Launch": 1. Malfunction of any SAS channel.

2. Malfunction of inertial platform attitude, q.

 Alternate Situations After Launch: 1. If engine fails to light after two attempts, jettison propellants and land at Hidden Hills Lake.

2. If roll SAS fails, reduce thrust to 50%, extend speed brakes, accelerate at low a to 3500 fps (or to "Edwards" area), shutdown and glide to base.

3. If pitch or yaw SAS fail proceed as planned.

4. If radar or radio become inoperative, proceed as planned.
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

 Launch Wt. 32,200# Landing Wt. 14,500#

Launch C.G. 20.3% Landing C.G. 15.0%