Spacelog Apollo 13

Okay. Panel 16, top row, we want to close QUAD 1 through 4 TCA breakers, and you're saying the other three rows are as is. Again, I have the exception the ASCENT ECA CONTROL on 16 should also be open.

Okay. We concur on that, and we have a late arrival in row 3. Stand by.

Okay, Fred. One addition, third row. The S-BAND POWER AMP. Request that you pull that circuit breaker and leave the switch in PRIMARY.

Okay. Yes, that's the way we were doing it before. I'll pull the POWER AMP CB, and then I'll go back to the first stage and put the POWER AMP to PRIME.

That's correct; that should be changed back to PRIME. And that's—that's it.

Good work, Vance.

Thank you.

RESET, OFF and LOW. Okay. Lighting bus off; EXTERIOR LIGHTING is off. Okay. You want to get your breakers, Jim? We ought to probably go back to that wide deadband.

Okay. The BUS TIE INVERTERs are coming off the line.

Yes. Go ahead. Sorry, I put the switch off, that'll kill caution and warning.

Okay. Let's see. So we're going to lose the ball again.

Yes.

I'll get 16 NOUN 20 out.

Do you have me move AUTO TRANSFER this time?

Why do I still have a VHF-A receiver off?

You don't, do you?

Yes.

Let's give them a call, panel 11.

Okay, Vance. I'm on—Do you read me now, hot mike?

Roger. Loud and clear, Fred.

Okay. Jim just noticed we got a VHF breaker in on panel 11 still, I think, that probably should be opened.

Okay. That's affirmative. Pull the VHF-A receiver.

Okay. Pull it, Jim.

I got it already. Okay. Now, why are we putting the cabin fan on?

Oh, oh, oh. Oh, yes. Okay.

Okay. I'm going to pull inverter 1.

Okay. Not very long since they had the switch off on you, anyway.

Okay.

Roger. —

— but my only question is, I got the CROSS TIE BUS circuit breaker in? Could be—Yes, this one right here.

Good line. It's on. Because that line is open.

I'll look over at that caution in a minute.

Vance, Aquarius.

Roger. Go ahead, Fred.

Yes. We've managed the first 30 hours or so here without the caution and warning; we don't need to keep it up now, do we?

Okay, Fred. That's one that we're leaving up until the PTC is established. We have a procedure for PTC to try with you, which we're hopeful will work pretty well. And I'll read that up as soon as you get what you're doing now done.

Okay.

Why don't you go ahead, and I'll get this PTC procedure. It's by the photo log, and I'll just get that.

And one other question, Houston. You really want to pull the ASA breaker? You want to give up the AGS probably for good now, huh?

Houston, I'm standing by to copy the PTC procedures.

Okay. I'll get back with you on your question in a minute, Fred. New, here comes the PTC procedure. Step 1, GUIDANCE CONTROL to PGNS; two MODE CONTROL, ATT HOLD; VERB 76, ENTER; maneuver to PTC attitude; and that incidentally is roll 0, pitch 90, and present yaw. We realize you can't monitor that on your FDAI, but you can on a verb, with a VERB 16 NOUN 20.

With me?

Roger. GUIDANCE CONTROL, PGNS; MODE CONTROL, ATT HOLD, VERB 76, ENTER; maneuver to PTC attitude which is roll 0, pitch 90, and yaw, which is the present yaw. Is that correct?

Okay, Vance. PTC procedure: GUIDANCE CONTROL, PGNS; MODE CONTROL, ATT HOLD; VERB 76, ENTER; maneuver to PTC attitude; roll 0, pitch 90, yaw 0; my ball now, of course, is inoperative, so I'll have to get that on the DSKY. The 5 is MODE CONTROL, AUTO; 6: VERB 16, NOUN 20, monitor rates; rates less that 1 degree per second in each axis, disable, and I didn't hear that last part. The next one was VERB 25, NOUN 07, ENTER; 1257, ENTER; 252, ENTER; 1, ENTER; VERB 77, ENTER; VERB 48, ENTER; 22110, PROCEED; VERB 34, ENTER; VERB 16, NOUN 20, ENTER; monitor rates. Rates less than 0.01 degrees per second in all axis. VERB 76, ENTER; MODE CONTROL, ATT HOLD; then 30 clicks of right yaw to stop—to start—maneuvers

Roger. That's correct, Jim. To—to answer your questions and correct one point, yaw should be your present yaw, whatever it is, and that's up with roll 0, pitch 90, present yaw. The other thing is, you said disable and you didn't hear the rest. That's disable plus-X thrusters. And, finally, near the end, the 22110 referred to DAP loading.

Roger. Now, to maneuver to PTC roll 0, pitch 90 and yaw in—and pitch in here, roll is here. Yaw—whatever yaw we have in. Okay, Vance. In our initial maneuver to PTC attitude, I am going to have to use—to display 16 20 and I'll have to use the TTCA to get there.

Jim, Roger. Your use of the TC—TTCA and just a reminder that in maneuvering that—that—that roll is in R₃ and yaw is in R₁.

That's affirm. And I'm going to take out roll first to get it zero and then I'm going to take care of pitch.

Okay.

Okay. GUIDANCE CONTROL, PGNS; MODE CONTROL to ATT HOLD. VERB 73 clears. Okay. We've got to get that out. … it stopped moving.

Here we go.

… the battery. …

Do you know what the plus-X thrusters are?

Yes, okay. I just wanted to make sure you do. I got them over here.

Aquarius, Houston. Over.

Go ahead.

Okay. A couple of things, Jim. One is that you can use the TTCAs to maneuver, but you're going to save a lot of fuel if you'd try MINIMUM IMPULSE. So, that might be a better recommendation. The other thing is, we'd like to give you a GO before you disable the plus-X thrusters, and before you do a VERB 76, and MODE CONTROL to ATT HOLD. Over.

Okay; understand. You want a GO before I—I'm—Of course, I just did a 76, and the MODE CONTROL is in ATT HOLD, at this time. But, this is later on down.

Yes. All we wanted to do was take a look at things before you disabled the plus-X thrusters, and before you go to MIN IMPULSE at the end there—that VERB 76, ENTER; MODE CONTROL, ATT HOLD.

Roger. Understand. And I'm maneuvering my roll now to zero.

Roger.

Yes. Those are the plus-X, right?

Houston, Aquarius

Go ahead, Aquarius.