Spacelog Apollo 13

Okay. CB LM POWER-2, MAIN B, open; CB LM POWER-1, MAIN A, open; CB EPS SENSOR SIGNAL, MAIN B, open. Stand by 1, Jack.

Jack, I don't think we ever closed CB LM POWER-1, MAIN A. We closed LM POWER-2, MAIN B, and LM POWER-1, MAIN B. Both of them on MAIN B.

Yes, you're right. Both of them should be MAIN B.

Okay. Copy that.

Okay. Ready to copy the LM?

Okay. Go ahead.

Okay. On panel 16 circuit breaker, EPS, BAT FEED TIES, two, open; and now you've got to listen real carefully for high volts and low volts, BATTERY 1, HIGH VOLTS, to OFF/RESET; BATTERY 2, LOW VOLTS, to OFF/RESET and then ON: BATTERY 2, HIGH VOLTS, to OFF/RESET and then ON; BATTERY 1, HIGH VOLTS, ON; and then the circuit breaker on panel 16, EPS: BAT FEED TIES, both of them, closed. Read back.

Okay. On the LM side of the house is on panel 16. CB EPS BAT FEED TIES, two, open; BATTERY 1, HIGH VOLTAGE, OFF/RESET; BATTERY 2, LOW VOLTAGE, OFF/RESET then ON; BATTERY 2, HIGH VOLTAGE, OFF/RESET then ON; BATTERY 1, HIGH VOLTAGE, ON. Panel 16, CB BAT FEED TIES, two closed.

Okay. That's a good readback. It concludes the procedure going both ways and now we just have to stand by.

Okay, when do you plan to start this?

Darn soon.

Did you say not soon?

No, we're going to do it pretty soon, but we want to have high bit rate, and we don't want you to give that to us until we tell you.

Okay. I think I'll go back and try to undamp up there. Do you have anything more for the command module?

We're discussing two items, but we don't have them ready right now.

One of them, I hope, is a foolproof alinement procedure.

Okay, Jack. Just for curiosity's sake, does FIDO have any information as to whether that helium—that helium tank dump affected our trajectory at all?

Okay, Aquarius. Our tracking data shows that since the helium dump, our entry angle has not changed from its value of 6.24 and somebody calculated that if we had a propulsive vent, that helium could roughly, at the maximum, only impart a DELTA-V of a half a foot per second or less, anyway. But we're continuing to track and as soon as we get some more info, we'll pass it along.

Okay. That's swell, Jack. Thank you.

Sure.

Your 6.24 sounds good.

I'm still awake, I guess.

Okay, Aquarius. We're ready. So we want some high bit rate. To do that, go over to panel 16 under COMM and close the PRIMARY S-BAND POWER AMPLIFIER. On your COMM panel -

Okay. Okay, Jack. Wait 1. While—I'd like to get the whole crew up for this if you don't mind.

…

Aquarius, how do you read?

Loud and clear.

Okay. I'm hearing you now. I think I missed your last transmission, Jim.

Okay. Jack is showing Fred the procedures. Want to get him familiarized with them, and how to get out of any problems before we proceed.

Roger. No rush. Just let us know when you're ready. We don't want old Fred-o to slip a gimbal there.

Boy, if you took 120 hours out. Oh. … Okay. …

Houston, Aquarius.

Hello, Fred. Go ahead.

Okay, I guess the only question I have is in the first—the very first portion involving the LM here where it has me turn on the only BAT 6, and then turn off all the DESCENT BATTERIES. Are you still reading me?

Okay. I read you until after turn off BAT 6—Correction, turn on only BAT 6.

Okay, the question is “Only one ASCENT BATTERY BAT 6 on the line,” immediately followed by turning off four DESCENT BATs. Is that correct?

That's affirmative, Fred. That question has been banged around and we decided to go that way.

Let's see, we will be powering other BUS via the CROSS TIE BALANCE LOADS breaker. Is that correct?

That's affirmative, and we're reading a current of 11 amps right now.

Okay. Okay. I guess I'm ready, then. That's 11 amps?