12 Minutes to launch
 

B-52:	12 minutes, 15 seconds ago.
Bob:	OK, my windshield master is off, windshield heaters are on.
B-52:	45,000 accelerating at 11 minutes to drop.
NASA 1:	About 5° left, Fitz.
B-52:	Roger 5°, NASA 1. Having a little trouble visually, you're on the base leg until we get squared away on final, so you'll have to help me a little on directions.
NASA 1:	Will do.
B-52:	Cloud layer in here, will be behind us at launch. 1O minutes.
Bob:	Switch launch panel. 3450 helium source. 3300 on #l and #2 nitrogen source. 425 on tank press. Got pitch and roll #l hydraulic is -50 and #2 is -25. APU source 3850 on #l, 3550 on #2. #1 mixing chamber -25, #2 is -5. LN2 source 3600
NASA 1:	Butch, is your memory light on now?
Butchart:	It's on. Go to doppler malfunction?
NASA 1:	Yes, let's go out of that now.
B-52:	9 minutes.
Bob:	Ram air door closed. Both blowers and LN2 is on. Press cooling is on. Cabin press is varied to -
NASA 1:	Confirm manual topoff, Butch? Affirm.
Butch:	Affirm.
NASA 1:	Xù15 LN2 supply closed?
Butch:	Yes.
B-52:	8 minutes
Bob:	Data on. #2 APU coming on now. Peroxide tank press's up 550. #2 up to 3500, settling down. #l APU coming on now. Peroxide tank press up #1 hyd press coming up 3300 (?) Ready for generators?
Butch:	LOX less than 39.
......:	..........
Bob:	400 volts on each generator. 3450 on #l and #2 hydraulics. Flaps coming down, flaps coming up. X-15 power off?
Butch:	Off.
B-52:	7 minutes.
Bob:	Stabilizer position pretty good, Danny?
Chase:	Right on trim.
Bob:	Cabin source is holding 35 pounds. Cabin pressure 35,000. Gains on the ball are +2-1/2° angle of attack.
NASA 1:	Fitz, hold and turn 20 seconds late.
B-52:	6 minutes now, what time do you want us to turn?
NASA 1:	20 seconds from now.
Bob:	X-15 oxygen is on. Fire extinguisher is auto. Nitrogen control reads 3400. Governor balance is 450 on #1 and #2. I've got bleed on all 8 chambers.
Butch:	Got my memory light back on.
B-52:	5 minutes.
Bob:	X-15 oxygen is holding 1900 psi. 3 jettison switches are off. Cine camera going to pulse. Butch, at 4 minutes, I'll swing into topoff. Call before pressurize.
Butch:	Send a reading now.
Bob:	45.
Butch:	It's been holding this for quite awhile, haven't had to reset it in last 2-3 minutes.
B-52:	4 minutes.
Butch:	Topoff secured.
Bob:	Going to pressurize on the tanks. Controls back up to 50 and holding at 50 indicated. 3 jettison switches going on. Jettison check, Danny?
Chase:	Rog. All 3 jettisoning. LOX shutoff. Peroxide is off. Fuel is still going.
NASA 1:	Fitz, add 30 seconds now.
Chase:	Fuel is off.
B-52:	Rog, understand call 3-1/2 now.
Bob:	Got 2500 on nitrogen source. Data on, calibrate. Ball nose test in 5 seconds.
NASA 1:	Rog. Observe your indicated alpha during the button being pushed in.
Bob:	Went to a -10 and when I let go it cycled back to a +3 now.
B-52:	3 minutes.
NASA 1:	APU bearing temp please?
Bob:	90 on #l and 90 on #2. Mixing chambers are -30 and -15. Hydraulics are +30 and +30.
B-52:	2 minutes.
Bob:	Stable platform going internal, is that OK, Butch?
Butch:	It's a Job to perform.
Bob:	Ventral is armed. .......... Brake handle.
Butch:	Going internal?
Bob:	Going internal. Push to test in 5 seconds. OK, push to test - is -10° alpha and cycle back to 2°. Intercom switch, how do you read?
NASA 1:	Loud and clear.
B-52:	1 minute, 15 seconds.
Bob:	What's the preheat setting?
Butch:	10.
B-52:	50 seconds.
Bob:	Master on.
B-52:	35 seconds.
Bob:	Prime coming on.
Chase:	LOX prime. Fuel prime?
Bob:	20.... +
Chase:	It's blossomed.
Bob:	Launch light on.
B-52:	You got it and you've got 15 seconds to go.
Bob:	All set!
B-52:	10 seconds, 5, 4, 3, 2, 1 - release!
Chase:	You got 8, Bob. Course looks pretty good.
Bob:	I'm showing 12° angle of attack here. What's my heading?
Chase:	I'm reading 242.
NASA 1:	Heading looks good, Bob.
Bob:	.......... 35,000 press altitude, coming back up.
NASA 1:	We have you about 3600. ADF check? Push calibrate please.
Bob:	Pushing over about 50.
NASA 1:	We got you right at 50. Punch your calibrate please.
Bob:	Going back to 8° angle of attack, 50,000.
NASA 1:	We have you at 51.
Bob:	I can't hear anything, something in the background but I hear other people.
B-52:	Has you at 51.
Bob:	Rog.
NASA 1:	Ease off to the left a little.
Bob:	OK ........... altitude ..........
NASA 1:	Coming up on 60 now.
Bob:	Mach number indicates 1.5 My inertial speed 2200
NASA 1:	We got 16.
Bob:	OK, that's good. I show coming up on 70.
NASA 1:	We got 70 here. 75
Bob:	Pushing over.
NASA 1:	You're in the Edwards area. Got you 78,000.
Bob:	.......... fuel remaining. b back down to 70,000.
NASA 1:	Check SAS 4-4-4
Bob:	Show zero fuel remaining. ..........
NASA 1:	Got you over Cuddeback. Engine master off? Prime off.
Bob:	Starting to turn now. 58,000.
Chase:	You can go to jettison anytime. I think I can make it up there now.
NASA 1:	Got you at 60,000.
Chase:	Have you started jettisoning yet?
Bob:	Negative.
NASA 1:	Check prime off.
Bob:	Prime is off.
NASA 1:	We've got you at 50,000 now. You're plenty high. Check your ADF, Bob.
Bob:	Yes ........
NASA 1:	About 41,000 now.
Bob:	.......... north lake runway ..........
Eddy Ap:	Lakebed winds NE at 5-10.
Bob:	What is the altimeter setting now?
NASA 1:	39,000.
Chase:	Better go to jettison, Bob or I'm not going to find you.
Bob:	OK, going to jettison now. Heading 135°, coming through 35,000. Be over the lake very shortly.
Chase:	Rog, have you.
NASA 1:	34,000.
Bob:	Put a little speed brake out.
NASA 1:	27,000.
Bob:	Rog, in good shape - on the delta. Still Jettisoning?
Chase:	Yes. Come on down, I'm underneath you.
Bob:	Going to have to go through these clouds though, see how this works out.
Chase:	Position is good. Keep turning.
Bob:	I'll do the speed when we get through the clouds.
NASA 1:	Pressurize?
Bob:	Still high.
Chase:	Go ahead speed brakes, I'm behind you.
Bob:	7000. Going back to pressurize. Ventral.
Chase:	Ventral anytime. It's away! Good!
Bob:	Flaps coming.
Chase:	You're high. Down 15. About down to 10, 5, real beauty!