Flight 1-49-77
Date: June 30, 1964
Pilot: John B. McKay
Flight Resume
Purpose: Phase II Optical Degradation Experiment and Pilot Altitude Buildup
Launch: Delamar Lake #1 on magnetic heading 214°, SAS Hi-Lo-Hi (8-4-8), ASAS ARMED, both BCS "ON", RAS "OFF", Auto Cutoff ''OFF". heading vernier to "Standby," Ventral OFF.
Launch Point Coordinates. 37° 18' N, 114° 36' W.
2. q = 28°. Maintain q = 28°.
3. Shutdown. Pushover to a = 0°. RAS "ON," Auto cutoff "ON."
4. Nellis - (Manual "D").
5. q = +8°.
6. Peak altitude. Maintain q » O to 20° a.
7. Pahrump (Manual "E") - Maintain q and f within ±8°. Extend speed brakes to 20°.
8. a = 20° - Maintain a = 20° until Hdot » -600 fps. RAS "OFF."
9. Hdot » -600 fps, pushover to maintain Hdot » -400 fps, extend speed brakes to 35°. (Max reentry g » 3.0,)
10. Pilot Knob - Maintain q and f within ±8°. (Manual "C").
11. Cuddeback - Maintain q and f within ±8°. (Manual "C"). Vector to High Key, speed brakes as required. Engine Master Off.
12. High Key.
2. X-15 radios - O.K. except over the base on landing.
3. APUs - No problem except suspected vibrations from the aft part of the airplane that wouldn't have necessarily been APUs but they functioned very well.
4. Damper System - Excellent.
5. Flow Direction Sensor - Excellent.
6. Launch Space positioning - Excellent.
7. Launch transients (q, f, y) - I don't remember any real transient in yaw. I had a little roll-off but not too much and I would just say they were normal. I didn't feel this 7° b on drop.
8. Engine Start - O.K.
9. Unforeseen incidents - I noticed the stable platform dropped out right after I got the engine going and started uphill. (Did you have a b?) I had b but I wasn't watching that. I took my feet off the pedals on the climbout somewhat because I was concerned with going to the alternate plan. We weren't using "·psi," we were on "standby" all the time.
2. Target acquisition - O.K.
3. Experiment performance - It was running, I would suspect, until we got to Cuddeback and that's when I started looking out of the cockpit and started in.
4. q control - I think my primary instrument was the q meter. I wasn't worried too much about what the angle of attack was. I got down to the minimum q that I could and 2/3 of the flight was made with full back stick against the stop. (35° stabilizer?) It was right against the stop, all the way back. a was about 12 or 13°. What were you people reading down here? (15°). This would be more in keeping with what our q was telling us. The simulator would give us just a little bit more than this when we get down to around 200 psf.
5. Low a control - Not applicable.
6. Altitude profile versus simulator - This alternate altitude profile was very similar to the simulator except I ran out of trim, ran out of back stick. If you get into any type of alternate situation like that, you've got a big spread that you can go between.
7. Unforeseen incidents - Just the platform going out.
2. Experiment performance - It worked in the cockpit. It depends on the lens.
3. Controllability in ballistic flight - We didn't use BCS on this flight.
4. Controllability during initial and terminal reentry - There was no real reentry.
5. Glide energy management versus simulation - Very good.
6. Approach and landing - were normal. A little speed brake used in there. I didn't shoot for the 2-mile marker. I shoot just a little ahead of the lake shore. I think this is the thing to do inasmuch as you don't know when you are going to be going into these lakebeds. I still insist if you keep shooting for the 2-mile marker you're going to land short on one of these short lakes out here. I was still shooting for somewhere inside of the lakebed shore line and I think I hit just past the l-mile marker, which would have got me in any of these lakebeds.
7. Unforeseen
incidents - None.
q 2 , f 2 , y 2 .
The worst area of the flight was during the pushover inasmuch as I didn't have a roll reference, no peripheral vision. It was about 46 seconds. I had to keep looking out to the side to keep wings level configuration. However, this was no strain. If you keep your head moving I don't think you're going to lose that. I think you can still do this on a steep climbout. This was really no particular piloting task, but it kept me busier at the time and I would just rate it as shown above. Even down to 250 q the airplane felt like it had a lot of aerodynamic control. There was really no decay on this. This is the most severe rating I'd give the whole flight .