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Flight No.: 2-13-24 Scheduled Date : February 16, 1961
Pilot: Major Robert M. White
Subject of Test : Temperature, stability, control and performance data for initial flight of envelope expansion.
Airplane Configuration: Basic X-15 with XLR-99 engine
Launch: Silver Lake
on magnetic heading of 243°. SAS 4-4-8
| No. | Time | Alt | M | M' | a | Event |
| 1. | 0 | 45 | 0.82 | 0.8 | 0 | Launch, light engine at 70% T and reduce to 50% T. Rotate to 10° a and hold until 1.5 g, maintain until 30° q. |
| 2. | 55 | 57 | 1.9 | 1.7 | 566 | Maintain 30° q, push over to 0 g at M' = 1.7. |
| 3. | 83 | 75 | 3.0 | 2.5 | 5 | Level at 75K. |
| 4. | 115 | 75 | 4.0 | 3.1 | 4 | Accelerate at 75K, shut down engine at V = 3900 fps. |
| 5. | 117 | 75 | 3.95 | 3.0 | 4 | At trim a, perform SAS 4-4-4 rudder pulse. |
| 6. | 125 | 75 | 3.85 | 3.0 | 4 | SAS 4-4-8, trim a, perform full deflection, constant heading sideslip. |
| 7. | 140 | 75 | 3.5 | 2.8 | 15 | SAS 4-4-4. Rotate to 15° a and perform rudder pulse (2.5 g). |
| 8. | 150 | 80 | 3.2 | 2.6 | 0 | Pushover to zero g until level. |
| 9. | 178 | 84 | 3.0 | 2.5 | 5 | Open speed brakes and perform series of rudder pulses while decelerating to M = 2.0 (SAS 4-4-4). |
| 10. | 235 | 65 | 2.4 | 2.1 | 16 | Start space-positioning turn. |
| 11. | 250 | 60 | 1.6 | 1.5 | 16 | Retract speed brakes, SAS 4-4-8. |
| 12. | 1.5 | 1.4 | Perform pushover-pullup. | |||
| 13. | Check BCS about all axes after chase acquisition. |
15. Check ventral armed, pressurize tanks.
16. Perform pushover-pullup maneuver on downwind leg.
17. 300 knot landing approach, jettison ventral three miles from touchdown, flaps and gear down - intended touchdown is two-mile marker.
18. After touchdown, apply roll and yaw control to evaluate ground directional control.
19. Before APU shutdown, cycle controls, retract flaps, set stabilizer trim to zero, and push-to-test on ball nose. Data off.
2. Emergency Lakes: Silver, Three Sisters and Cuddeback.
2. No attitude information from stable platform will constitute an abort.
3. With roll or pitch-yaw SAS failure after launch, proceed with primary flight plan to M = 3.2 (M' = 2.6). Shut down engine and proceed to EAFB.
4. After launch,
if the engine does not light after two attempts, jettison and land at Silver
Lake.
Launch C.G. 20.3% Landing C.G. 15.0%
X-15 FLIGHT PLAN
(ALTERNATE)
Flight No.: 2-13-24 (Alternate) Scheduled Date : February 16, 1961
Pilot: Major Robert M. White
Subject of Test : Stability and control, systems operation.
Airplane Configuration: Basic X-15 with XLR-99 engine
Launch: Waldrip on magnetic heading of 75°. SAS 4-4-8
No. Time Alt M M'
a
Event
| 1. | 45 | 0.82 | 0.8 | Launch, light engine at 70% T and reduce immediately to 50% T. Extend speed brakes. | ||
| 2. | 43 | 1.0 | 0.95 | 8 | Pullup to buffet, note a, then reduce to 8° a. | |
| 3. | 46 | 1.3 | 1.2 | 0 | Pushover to 0 g to level at 50K, accelerate to M = 2.0. | |
| 4. | 50 | 2.0 | 1.8 | 4 | Start 2.5 g left turn. | |
| 5. | 50 | 2.0 | 1.8 | 8 | SAS 4-4-4, rudder pulse. | |
| 6. | 50 | 2.0 | 1.8 | 8 | SAS 4-4-8, steady sideslip. | |
| 7. | 50 | 2.0 | 1.8 | 8 | Burnout. | |
| 8. | 50 | 2.0 | 1.8 | 8 | SAS 4-4-4, perform rudder pulses while decelerating to M = 1.5. | |
| 9. | 50 | 1.5 | 1.4 | Retract speed brakes. | ||
| 10. | 40 | <1.0 | Actuate BCS. | |||
| 11. | Push-test ball nose. Perform pushover-pullup near high key. |
13. Check ventral armed, pressurize tanks.
14. 300 knot landing approach, jettison ventral when clear, flaps and gear down. Intended touchdown is two-mile marker.
15. After touchdown, apply control for ground run evaluation.
16. Before APU shutdown, cycle controls, retract flaps and set stabilizer trim to zero. Push-to-test on ball nose. Data off.
2. Emergency Lake: Rogers.
Launch Wt. 32,500lb Landing Wt. 14,550lb
Launch C.G. 20.3% Landing C.G. 15.0%