13 Minutes to launch (After 10 minute hold)
 

NASA 1:	We'll call this 13 minutes and, Joe, start with your APU cooling switch normal.
Engle:	Roger.
NASA 1:	Pressure cooling lever on.
Engle:	Roger, pressure cooling on. Both blowers, BLN2.
NASA 1:	Roger.
Engle:	Pressure now 3400. Helium shutoff valve open.
NASA 1:	Roger, standby little bit for APUs.
Engle:	OK.
B-52:	12 minutes.
NASA 1:	12 minutes. Go ahead with your #2 APU, Joe.
Engle:	OK, #2 coming on, Don.
Chase:	#2 OK.
Engle:	Hydraulic pressure is sticking, there it goes, 3500. #l coming on.
Chase:	#l check.
Engle:	Generators reset. Got about 4200-4300 pound overshoot and its coming back now on pressure.
NASA 1:	Rog. Engine reset?
Engle:	Engine reset.
B-52:	11 minutes.
NASA 1:	Roger, 11 minutes.
Engle:	Pressures look good. Electrical power looks good. Flaps coming down on #l system, Don.
Chase:	Flaps coming down.
Engle:	Flaps up.
Chase:	Flaps up.
Engle:	#2 coming down.
Chase:	Coming down.
Engle:	Back up.
NASA 1:	Put them both down with circuit breakers in, Joe.
Engle:	Roger, both circuits in, coming down again Don.
Chase:	Flaps coming down.
Engle:	Back up. MH oscillograph coming on. Platform going internal.
NASA 1:	Roger.
Russel:	MH 96 check started.
Engle:	Precool is off.
NASA 1:	Roger, we're going to skip precool.
B-52:	10 minutes.
Engle:	Are they all the way in, Don?
Chase:	Looks like the bottom ones are out ..........
Engle:	Handle is all the way forward.
NASA 1:	Roger, that sounds good.
Russel:	Reading doppler velocity 844.
Engle:	I've got about 960 looking at cockpit here and about 47,000 altitude.
Russel:	Range and cross range error +1, -1.
Engle:	Attitudes look good. a is +2 and b is about 1° left.
NASA 1:	Roger.
B-52:	9 minutes.
NASA 1:	Understand 9 minutes.
B-52:	NASA 1, confirm clear to turn in about 20 seconds.
NASA 1:	Affirmative.
B-52:	Turn, 8 minutes now.
Russel:	MH 96 end of test light on.
NASA 1:	Roger.
Engle:	MH 96 oscillograph off, Bob.
NASA 1:	Roger.
Chase:	About 4° leading edge up on the stabilizer.
Engle:	OK.
NASA 1:	OK, Joe, are you trimmed out at zero?
Engle:	That's affirmative.
NASA 1:	How does it look now, Don?
Chase:	Down (?)
Russel:	Lube oil temp 115°. Looks like our liquid oxygen is going to be jettisoning ..........
NASA 1:	Roger, understand.
B-52:	6 minutes, 7 seconds ago.
Engle:	Aux cabin pressure switch on. Blood pressure on. Fire extinguisher auto. All the trims are zero. .......... MH.
NASA 1:	Roger.
Engle:	MH BCS to auto. Here comes the controls now.
Chase:	Roger.
NASA 1:	Check horizontal stabilizer position, Chase 1.
Chase:	It's at zero.
NASA 1:	Very good. All support aircraft are now in position.
B-52:	5 minutes.
Engle:	Control BCS check now.
Chase:	Good.
Engle:	OK. Flaps still zero?
Chase:	Affirm.
Engle:	Going X-15 oxygen.
NASA 1:	Roger.
Russel:	Lox topoff is complete.
Engle:	Understand, Lox topoff complete, going to .........., Bob.
NASA 1:	220 inbound, 003.
B-52:	220.
NASA 1:	Joe, we didn't get your X-15 oxygen pressure.
Engle:	2800, Bob.
NASA 1:	Thank you. We'll give you a call at 4 minutes.
B-52:	Roger. 220 on heading.
NASA 1:	4 minutes now.
Engle:	Data on - calibrate, complete, tank handle going to pressurize. Pressure 48, ammonia 45. Data off.
NASA 1:	Roger.
Engle:	Intercom going on. How do you read, Bob?
NASA 1:	Read you loud and clear, how me?
Engle:	Very good, 5 by.
Chase:	Done anything with the stick, Joe?
Engle:	Roger, checking trim. It's at zero now, Don.
Chase:	Affirm.
B-52:	3 minutes.
Russel:	Stable platform in specs.
Engle:	I've got 47000 altitude and about 950 velocity.
NASA 1:	Roger.
Engle:	APU bearing temps, #1 is 60 and #2 is 50.
NASA 1:	Roger.
Engle:	Delta psi standby. .......... switch on.
NASA 1:	Roger.
Russel:	Velocity 735.
NASA 1:	Roger. Experiment on, Joe?
Engle:	Experiment is on, Bob. I'm 215 on heading, Russ, how does that check with you?
B-52:	220, 218. 2 minutes.
NASA 1:	Roger.
Engle:	Data on, tape to 15. MH oscillograph on. Push to test ball nose.
Russel:	52 velocity 725.
NASA 1:	Thank you.
Engle:	Check a +1 and b 1° left.
NASA 1:	Roger.
Engle:	Cine camera pulse.
NASA 1:	Roger. Joe, if you're ready, we'll call one minute now.
Engle:	Ready, one minute.
Chase:	Trim is up.
B-52:	Launch master on.
Engle:	40 seconds, prime. Igniter ready light. Precool. Going igniter idle. 10 seconds, Bob, pump idle. 2nd stage up, 160, looks good.
NASA 1:	OK.
Engle:	Looks good here, are you OK, Bob?
NASA 1:	Affirmative.
Engle:	3, 2, 1, drop.
NASA 1:	OK, Joe, looks good. Right on track when you launched.
Engle:	Roger, on a.
NASA 1:	You're on a already. Check your dampers.
Engle:	Dampers on.
NASA 1:	OK. Coming up on 50,000 now. Everything looks good, Joe. How are you doing?
Engle:	OK.
NASA 1:	Little bit steep but profile is good. Coming up on 65,000 now. There's 70,000 now. 80,000 and hold it up there. 90,000. There's 100 and 110,000, approaching shutdown.
Engle:	OK, shutdown, Bob.
NASA 1:	Roger. Ease it over to zero a slowly.
Engle:	OK, MH is out.
NASA 1:	Roger. Watch your - try to reset it.
Engle:	Roger, I did, it won't reset.
NASA 1:	Understand they could not reset.
Engle:	That's affirmative.
NASA 1:	Might see if you can check your circuit breakers.
Engle:	Roger, they're all in, Bob.
NASA 1:	Roger, manual on reaction control.
Engle:	Its OK, BCS circuit breaker popped, it's reset, and I'm back on MH.
NASA 1:	Very good, go to auto on reaction control. Approaching peak now, and little low on profile. You can start speed brakes out. Check your reentry a at 15°. We may want to use a little higher.
Engle:	OK, when I go to auto on the reaction control, Bob, the dampers drop off.
NASA 1:	OK, shut that off and reset dampers again.
Engle:	Roger. Did you say 15°?
NASA 1:	Affirmative, and we will have to go good energy management, you're off track quite a bit to the north.
Engle:	OK, I got the field in site.
NASA 1:	Roger. Have you got dampers back on?
Engle:	Roger, dampers back on.
NASA 1:	OK. Try a left turn reentry as much as you want to.
Engle:	You bet!
NASA 1:	Coming down and approaching 100,000 feet now. You can pull it on up to 20° and can start a left turn in your reentry. Brakes in when you get to the bottom.
Engle:	Right.
NASA 1:	Brakes in, Joe.
Engle:	Right.
NASA 1:	You got a hard left turn to do when you - about 18O now.
Engle:	OK, I've got the field now, Bob. I will be able to steer in from here, thanks.
NASA 1:	OK.
Engle:	I've got about 3700 velocity, is that what you've got?
NASA 1:	Roger, that looks good.
.......... :	..........
NASA 1:	Your energy is good, Joe.
Engle:	Fine.
NASA 1:	It will be about 170°. Keep turning and, Chase 1, he is north of Cuddeback now. North and west of Cuddeback by 25 miles. We have 34 on velocity.
Engle:	Speed brakes coming out.
NASA 1:	Roger. You can turn engine master off, Joe.
Engle:	Engine master off.
NASA 1:	OK, your energy looks good, Joe, and you are a little high on original profile.
Engle:	Roger.
NASA 1:	Have you now 20 miles north northwest.
Engle:	Roger.
NASA 1:	Have you at Mach 2 at this point.
Engle:	Roger.
NASA 1:	2.0 and about 12 miles out.
Engle:	1.5 Mach.
NASA 1:	OK. Brakes in.
Engle:	I'm at one o'clock, Russ, just a little high.
Chase:	Yes, but I can't quite see you yet, going to jettison?
Engle:	OK, jettison now.
NASA 1:	Experiment off now, Joe?
Engle:	Experiment off.
NASA 1:	Have you 1.2, Joe, on velocity, and watch your a in the turn. Russ, want a good check on his flaps when he starts them down. Chase 4, do you read NASA 1? Roger, we're showing you at 40,00O now, right over NASA.
Engle:	OK, I've got 36 indicated and 300 knots, Russ.
Chase:	Has a tally-ho!
NASA 1:	Roger. Russ, want a good check on his flap when he starts them down.
Chase:	Looks like he is still jettisoning a little bit now and then, Joe.
Engle:	OK, fine. Coming out with the brakes a little, Russ. Are you indicating about 30,500?
Chase:	Rog, 30,000.
Engle:	OK, brakes coming out a little.
Chase:	Rog.
Engle:	Brakes coming back in, Russ.
NASA 1:	Check your circuit breakers and squat switch.
Engle:	Roger. Circuit breakers and squat switch engaged.
NASA 1:	Roger, you can go to pressurize any time.
Engle:	Pressurized now.
NASA 1:	Don't forget the trim on the straight away.
Engle:	Say again?
NASA 1:	Don't forget the trim on the straight away with a little nose down.
Engle:	OK, flaps down and flaps back in.
Chase:	Up to 12,000, Joe.
Engle:	Roger, thank you. Little more flaps, Russ, or speed brakes. .......... At about 10 nose down on straight away. Speed brakes coming in, Russ.
Chase:	Roger.
Engle:	Flaps coming down.
Chase:	Flaps coming down. All fixed. Gear coming down now. 2 good ones, 3 good ones. 10 feet, 5, 2, 1, superb.
Engle:	OK, we're stopped, Bob.
NASA 1:	Boy, thanks a lot.
Engle:	Ball heading indicating 186°. Altimeter reading about 10,000. Velocity about 500. Pressure climb about 25 high. X-15 oxygen pressure is 2000. Speed brakes coming open. Ball nose push to test. Data off and MH oscillograph off. Hydraulic pressure 3350. APU bearing temps OK. Peroxide tank pressure good. Peroxide low light is off. Mixing chamber temperature is -50 and -40 on #1 and #2. #l Fox source pressure zero. Source pressure on #1 and #2 is 1400. APU #1 is 1900, #2 is 2300. Cabin source is 22. Stable platform off. APU switch coming off.