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Vance Brand (CAPCOM)
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Okay. Okay. First of all, general philosophy is that these rules should be similar to LOI mode I abort with the tight limits. Now, I'll go through them one by one for you to copy. Okay. You should shut down, if any of the following happen. Thrust monitor readout, 77 percent or below; DPS propellant tank pressure—that's the inlet pressure—onboard readout, 160 or below; fuel to OX DELTA-P, greater than 25 psi—and that would have to be a ground call to you—attitude error plus or minus 10 degrees, with the exception of the start transient; attitude-rate limits, plus or minus 10 degrees a second. And you should shut down if you get any of the following alarms: ENGINE GIMBAL, ISS, plus PROGRAM ALARM, LGC, CES DC, and if you get an inverter light after switching inverters. Are you with me?
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Vance Brand (CAPCOM)
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And proceeding on. If, during the burn, the engine stops, if you have a flashing NOUN 97, you should PROCEED, then ullage, ENGINE START to PUSH, and DESCENT ENGINE OVERRIDE ON. Okay. Now just general information. If you didn't burn PC plus 2, probably P—P plus 4 would be the earliest MCC. AGS is going to backup in a rate-fail mode only, which you know. We're talking over the star check. Will have to get back with you on that. If, for some reason, there is no PC-2, you have a free-return trajectory with the landing at 152:02:00, and that would be after a small midcourse-5, which would probably be around 4 feet per second at 93 hours. And you have recovery forces in the Indian Ocean; you're in good shape there. And the Indian Ocean is where this landing would be. Okay. You still with me?
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Vance Brand (CAPCOM)
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Okay. After PC plus 2, there are no trim requirements; and, if you have a shutdown during PC plus 2, subsequent midcourse maneuvers required with—Well, the earliest one would be PC plus 4. If you don't do a PC plus 2, but we still want to do one—MCC later. At PC plus 4, the increase in DELT—in DELTA-V, or the penalty, would be about 24 feet per second, with a landing in the mid-Pacific at 142:46:30. Now, you should expect new pads, state vectors, and targets for PC plus 2 at about GET 78. Over.
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Fred Haise (LMP)
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Okay. Burn rules. We should shut down for the following: if we have the thrust monitor at 77 percent or below; number 2, if the DPS propellant ullage pressure is less than 160 psi; 3, if the fuel oxidizer DELTA-P is greater than 25, and that'll be a ground callout; 4, if the attitude error is plus or minus 10 degrees except for starting transients. Okay. Rate limits are plus or minus 10 degrees per second. And we're to shut down with the following alarms: an ENGINE GIMBAL light, an ISS with a PROGRAM ALARM, an LGC, a CES DC, and an inverter light, if it's still on after we've tried switching inverters. If, during the burn, the engine shuts down when the NOUN 97 flashes, we should PRO, do manual ullage, and START pushbutton, push, and DESCENT ENGINE COMMAND OVERRIDE, open. If we don't do a PC-2, our next burn will it be at PC-4 for an added 24 foot per second. We'll land mid-PAC at 142:46:30. Okay. We'll have the AGS up for backup rate command, or rate damping, I guess. And the free return that we're on, if we don't—that we're on now, if we don't do PC-2 or 4, lands us at 152:02:00 in the Indian Ocean. And there's no trim requirements on this burn, and we should expect a new uplink and a new final maneuver pad from you at 178 hours.
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Vance Brand (CAPCOM)
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I can understand.
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Fred Haise (LMP)
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Okay. And, Vance, did you ever have any LOS/AOS times, and—and a startup time for us to jump into this activation checklist?
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Fred Haise (LMP)
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Okay. One word is that the—In an optimum fashion there, going through that 2-hour activation generally took somewhere from about an hour and 15 to an hour 20.
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Fred Haise (LMP)
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No, I was thinking that we don't have to do about four pages of it, that we probably need just about that, and that will make up for the difference of any added time we need maneuvering et cetera.
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Jim Lovell (CDR)
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We'll need a—Can I get a flashlight? You got a flashlight. We might need a spare flashlight—Yes. Okay. We might need a spare flashlight: have you got one? Okay. Okay. The Sun has gone … down.
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Jim Lovell (CDR)
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Roger. We are in the shadow of the Moon now. The Sun is just about set as far as I can see and the stars are all coming out.
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Vance Brand (CAPCOM)
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Okay. LOS 77:08:35, AOS 77:33:10. Sunrise—First I'll give you sunset which is past, but that was supposed to be at 76:32:45 and sunrise 77:16:48.
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Vance Brand (CAPCOM)
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Roger. We'll get back with you on the powerup time and, if you're ready to copy, have angles to load into NOUN 22 for your VERB 49 maneuver to burn attitude. Over.
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Vance Brand (CAPCOM)
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Okay. R1 plus 27210, R2 plus 35570, R3 plus 33010. Second item, as you know, due to maneuver with a PROCEED and a PROCEED; and, after your attitude, a reminder that P40 will not set you back to a narrow deadband. To get back to the 1.40-degree deadband, you have to use the procedure I gave you, which is VERB 21, NOUN 01, ENTER, 3011, ENTER. And 200, ENTER.
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Fred Haise (LMP)
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Okay. VERB 49, register 1, plus 27218; register 2, plus 35570; register 3, plus 33010; and to get the narrow deadband back we want a VERB 21, NOUN 01, ENTER, 3011, ENTER, 200 ENTER.
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Vance Brand (CAPCOM)
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Roger. And a correction on your—on your first number for register 1. That should be plus 27210. And another comment; after you get into the narrow deadband at that attitude, why, you might tell us where you see Nunki.
Spoken on April 14, 1970, 11:52 p.m. UTC (54 years, 7 months ago). Link to this transcript range is: Tweet
