SEVENTH POWERED FLIGHT OF NO. 2 X-15
I.

Launch Evaluation
 

.82 Mach at 45,000 ft., dampers on 2-4-8.


II.

Climb and accelerate to M = 1.2 at 50,000 ft on the heading shown in space positioning chart using the following schedule.

III.

M 1.1 - 1.6, Altitude 40 - 50,000 ft.
 

After recovery from launch at M = 1.1 at 40,000 ft. and during the ensuing climb to 50,000 ft. and acceleration to 1.6 M, execute alternately yaw pulses (b = 3°) and pitch pulses (·g = 1). (With all dampers off.)


IV.

Space Positioning Turn

A. Enter 1.6 Mach, 50,000 ft. space positioning turn with SAS settings at 2-4-8. This is approximately a 2.2 g turn (a = 12°).

B. During this turn pullup to 3 g's at SAS settings of 2-4-8 and 4-4-8. Do not exceed 5 sec. for each pull-up and return to 2.2 g's.

C. In this turn, adjust normal acceleration to maintain approximately 1.6 M rolling out on the magnetic heading of 295 degrees.

V.

Speed Brake Evaluations 1.6 M at 50,000 ft. SAS = 2-4-8.
 

On rolling out of the 2.2g windup turn cycle the speed brakes through full deflection and retract.


VI.

Pushover to .5g and accelerate to M2 at 47,000 ft. a = 2.3°, q = 800 psf, IAS = 565 Kn.

VII.

Level Flight Run at M = 2 at 47,000 ft.
 

With SAS at gain settings of 4-4-8, perform a wings level sideslip to max vertical stabilizer deflection (b = 4.5°). This maneuver should be performed with a max rate input, hold, and a quick release after steady sideslip has been established.


VIII.

At burnout perform a -2g pushover followed by a speed brake extension to full deflection.

IX.

With the speed brakes fully extended initiate a 12° angle of attack turn to Rogers Dry Lake closing the speed brakes at approximately M = 1.2.

X.

In the subsonic glide back to base perform the following maneuvers.
 

A qualitative evaluation of the airplane about all three axes at 250 and 230 knots indicated air speed, SAS = 0-0-0.


XI.

Perform the landing maneuver.

A. If possible, establish a known constant heading prior to touchdown, immediately after nose gear touchdown, put in maximum left roll control, available horizontal control (leading edge nose down), and full speed brakes.

Hold controls as described for entire ground slide, space permitting.