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Apollo 11

Apollo 11 Technical Air-to-Ground Voice Transcription (GOSS NET 1)

  • Source document: 1969-07-apollo-11-technical-air-to-ground-voice-transcription.html

  • Original: NASA, Apollo 11 Technical Air-to-Ground Voice Transcription (GOSS NET 1), Manned Spacecraft Center, July 1969.

  • Available online: Internet Archive — Apollo 11 transcripts (GOSS NET 1 file AS11_TEC.pdf); also NTRS 20160014392.

Summary

Section titled “Summary”

The verbatim transcript of the technical air-to-ground voice channel (GOSS NET 1) between the Apollo 11 crew and Mission Control, covering the mission from launch through splashdown. Every exchange is time-tagged with ground elapsed time (GET) in DD HH MM SS format. It is the primary record of the crew–ground dialogue, including the landing and the first moonwalk.

Key takeaways

Section titled “Key takeaways”
  • Communicators are identified by code: CDR = Neil A. Armstrong, CMP = Michael Collins, LMP = Edwin E. “Buzz” Aldrin, Jr.; CC = Capsule Communicator (CAP COMM), F = Flight Director; plus remote sites and recovery forces (e.g., USS Hornet, SWIM 1). Transcription conventions: ... = untranscribable garble, - = pause/self-interruption, - - = interruption.
  • Powered descent: includes the “1202” program-alarm calls, the final landing callouts (“Kicking up some dust… CONTACT LIGHT… ENGINE STOP”), and the landing announcement at GET ~04 06 46: “Houston, Tranquility Base here. THE EAGLE HAS LANDED,” answered with ”…You got a bunch of guys about to turn blue. We’re breathing again.”
  • First EVA: captures “THAT’S ONE SMALL STEP FOR (A) MAN, ONE GIANT LEAP FOR MANKIND,” Armstrong’s surface description (“the surface is fine and powdery… like powdered charcoal”), and the contingency-sample collection.
  • End of mission: ends with “SPLASHDOWN!” at GET ~08 03 18, called by the recovery swimmer.
  • Because it is the GOSS NET 1 technical channel, it documents the operational loop (PADs, alignments, systems calls) alongside the historic moments.

Concepts extracted

Section titled “Concepts extracted”