Spacelog Apollo 13

I'm going to roll it.

Can you give it a roll up now, Jim?

Yes.

I don't understand why we got that.

Apollo 13, Houston. It looks like VERB 49 maneuver will just take you right through there. You're going to have to go around it. Over.

Okay. That's what we're in the process of doing.

Si, si.

How do I work my way around it? I'm 58g's, and I want yaw 231, right? I think they screwed up on our—our numbers again.

Zero out the needles; we're heading that way, and then we'll stop and talk about it.

No. Pitch is 83. Pitch should be up here. … … What's the number, 552?

Pitch should be 83 degrees. …

Roll 232; that's a long way to roll, … yaw is 62 …

… yaw.

… roll.

…

Okay. What's that read; there's 180.

Roger.

… is over here. Houston, 13.

Go ahead, 13.

There's something screwed up on our burn attitude. We're not getting the proper readings on the ball and the needles are centered. I'm not too sure what's wrong. Let's go through this procedure again.

Okay. Stand by 1. Let us look at it.

— angles you gave us, Vance, aren't correlating the VERB 49 numbers.

Okay. We'll check into it.

We know the ball is good. Why don't we just get a 40?

You better watch out; it's heading that way.

Apollo 13, Houston.

Go ahead, Houston.

Okay, Jim. To answer your last question, do you have PGNS checklist page 57 handy?

Right, we do. I'll check it.

As soon as you open up to that, I'll explain it.

Okay. Go ahead, Vance.

Okay. Under VERB 49, crew-defined maneuver, the flashing 0622 are the angles that we gave you that were loaded. The flashing 5018 actually represents FDAI angles, and so what you read on 5018 should —

Right. I understand.

— should not correspond with NOUN 22.

Yes. We appreciate that, Vance. It's just that right now we're trying to follow center needles that appear to be possibly taking us away from the place we know we want to be in the ball.

Okay, You're tending toward the gimbal lock area again. Heads up.

Roger.

There's our 83. —

Apollo 13, Houston.

Go ahead.

13, request you put in the POWER AMPL circuit breakers so that we can take a look at your angles.

You got it.

Thank you. And now high bit rate.

Apollo 13, Houston.

Go ahead.

Okay, Jim, we just took a look at your angles, and you're looking good here. Your PGNS is looking good. We can't yet explain the attitude error needle thing, but I suggest you continue on in your maneuver.