Excerpt from transcript of the Technical Air-to-Ground Voice Transmission from the Apollo 11 mission

CC – Mission Control Center, Capsule Communicator

CDR – Commander, Neil A. Armstrong

LMP – Lunar Module Pilot, Edwin E. Aldrin, Jr

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

04 06 45 21          LMP       30 feet, 2 1/2 down. Faint shadow.

04 06 45 25          LMP       4 forward. 4 forward. Drifting to the right a little. Okay. Down a half.

04 06 45 31          CC           30 seconds.

04 06 45 32          CDR        Forward drift?

04 06 45 33          LMP       Yes.

04 06 45 34          LMP       Okay.

04 06 45 40          LMP       CONTACT LIGHT.

04 06 45 43          LMP       Okay. ENGINE STOP.

04 06 45 45          LMP       ACA – out of DETENT.

04 06 45 46          CDR        Out of DETENT.

04 06 45 47          LMP       MODE CONTROL – both AUTO. DESCENT ENGINE COMMAND OVERRIDE – OFF. ENGINE ARM – OFF.

04 06 45 52          LMP       413 is in.

04 06 45 57          CC           We copy you down, Eagle.

04 06 45 59          CDR        Houston, Tranquility Base here.

04 06 46 04          CDR        THE EAGLE HAS LANDED.

04 06 46 06          CC           Roger, Tranquility. We copy you on the ground. You got a bunch of guys about to turn blue. We’re breathing again. Thanks a lot.

04 06 46 16          CDR        Thank you.

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

04 13 22 48          CC           Okay. Neil, we can see you coming down the ladder now.

04 13 22 59          CDR        Okay. I just checked getting back up to that first step, Buzz. It’s – not even collapsed too far, but it’s adequate to get back up.

04 13 23 10          CC           Roger. We copy.

04 13 23 11          CDR        It takes a pretty good little jump.

04 13 23 25          CC           Buzz, this is Houston. F/2 – 1/160th second for shadow photography on the sequence camera.

04 13 23 35          LMP       Okay.

04 13 23 38          CDR        I’m at the foot of the ladder. The LM footpads are only depressed in the surface about 1 or 2 inches, although the surface appears to be very, very fine grained, as you get close to it. It’s almost like a powder. Down there, it’s very fine.

04 13 23 13          CDR        I’m going to step off the LM now.

04 13 24 48          CDR        THAT’S ONE SMALL STEP FOR MAN, ONE GIANT LEAP FOR MANKIND.

04 13 24 48          CDR        And the – the surface is fine and powdery. I can – I can pick it up loosely with my toe. It does adhere in fine layers like powdered charcoal to the sole and sides of my boots. I only go in a small fraction of inch, maybe an eighth of an inch, but I can see the footprints of my boots and the treads in the fine, sandy particles.

04 13 25 30          CC           Neil, this is Houston. We’re copying.

04 13 25 45          CDR        There seems to be no difficulty in moving around as we suspected. It’s even perhaps easier than the simulations at one-sixth g that we performed in the various simulations on the ground. It’s actually no trouble to walk around. Okay. The descent engine did not leave a crater of any size. It has about 1 foot clearance on the ground. We’re essentially on a very level place here. I can see some evidence of rays emanating from the descent engine, but a very insignificant amount.

04 13 26 54          CDR        Okay, Buzz, we ready to bring down the camera?

04 13 26 59          LMP       I’m all ready. I think it’s been all squared away and in good shape.

04 13 27 03          CDR        Okay.

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

04 13 39 43          LMP       All right.  The backup camera’s positioned.

04 13 39 57          CDR        Okay. Your PLSS is – Looks like it is clearing okay. Your toes are about to come over the sill. Okay. Now drop your PLSS down. There you go; you’re clear. And laterally you’re good. You’ve got an inch clearance on top of your PLSS.

04 13 40 18          LMP       Okay. You need a little bit of arching of the back to come down … How are my feet from the edge?

04 13 40 27          CDR        Okay. You’re right at the edge of the porch.

04 13 40 30          LMP       Okay. Back in *** little of foot movement *** porch. Little arching of the back. Helmet comes up and clears the bulkhead without any trouble at all.

04 13 40 48          CDR        Looks good.

04 13 41 08          CC           Neil, this is Houston. Based on your camera transfer with the LEC, do you foresee any difficulties in SRC transfer? Over.

04 13 41 18          CDR        Negative.

04 13 41 28          LMP       Okay. Now I want to back up and partially close the hatch.

04 13 41 47          LMP       Making sure not to lock it on my way out.

04 13 41 53          CDR        (Laughter) A pretty good thought.

04 13 41 56          LMP       That’s our home for the next couple of hours and we want to take good care of it. Okay. I’m on the top step and I can look down over the RCU, landing gear pads. It’s a very simple matter to hop down from one step to the next.

04 13 42 18          CDR        Yes. I found I could be very comfortable, and walking is also very comfortable.

04 13 42 28          CDR        You’ve got three more steps and then a long one.

04 13 42 42          LMP       Okay. I’m going to leave that one foot up there and both hands down to about the fourth rung up.

04 13 42 50          CDR        There you go.

04 13 42 53          LMP       Okay. Now I think I’ll do the same ***

04 13 43 01          CDR        A little more. About another inch.

04 13 43 05          CDR        THERE YOU GOT IT.

04 13 43 08          CDR        That’s a good step. About a 3-footer.

04 13 43 16          LMP       Beautiful view!

04 13 43 18          CDR        Isn’t that something! Magnificent sight out here.

04 13 43 24          LMP       Magnificent desolation.

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