A tribute to the Apollo 12 mission

Apollo 12 insignia

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48th Anniversary of Apollo 12 mission will come up in: 
 
APOLLO 12
second manned lunar landing
Command Module:  Yankee Clipper
Lunar Module:  Intrepid
Launch:  14-Nov-1969 16:22:00 UTC
Landing:  24-Nov-1969 20:58:24 UTC
Lunar orbits:  45
Lunar orbit time:  88 h   58 m   11.52 s
Lunar landing:  19-Nov-1969 06:54:35 UTC
EVA duration: 
1. EVA:  3 h 56 m 03 s
2. EVA:  3 h 49 m 15 s
Total:  7 h 45 m 18 s
Lunar surface time:  1 d   07 h   31 m   11.6 s
Mission duration:  10 d   04 h   36 m   24 s
Charles Conrad (l), CDR - Richard Gordon (c), CMP - Alan Bean (r), LMP
THE APOLLO 12 CREW
 
Charles Conrad (l)  - Commander
Richard Gordon (c)  - Command Module Pilot
Alan Bean (r)  - Lunar Module Pilot

Apollo 12 was the second manned lunar landing. With Apollo 11 being able to land on the moon was shown. Apollo 12 went to show a precise landing is possible and succeeded. In the sea of storms the LM Intrepid landed only less than 200 meters away from the landing side of Surveyor 3.

Apollo 12 war die zweite bemannte Mondlandung. Mit Apollo 11 hatte man gezeigt, dass man auf dem Mond landen kann, mit Apollo 12 wollte man zeigen, dass auch eine präzise Landung möglich ist. Apollo 12 war erfolgreich und landete nur weniger als 200 Meter entfernt von der Sonde Surveyor 3.

Conrad at Surveyor 3
Apollo 12 launch

Nearly after the liftoff Apollo 12 could have been become an aborted mission. 36.5 seconds and 52 seconds after range zero and liftoff Apollo 12 was hit by lightings which leads all fuel cells to go offline and loss of telemetry data. Only EECOM John Aaron remembered a possible solution and LMP Alan Bean understood the suggested solution.

The fact that the launch vehicle, the Saturn V rocket, has had its own navigation and guidance system has saved the mission. Therefore though guidance and navigation of the CSM was offline, Apollo 12 has reached Earth orbit, where the crew was successful in bringing all systems of their CSM back online.






Kurz nach dem Start hätte die Apollo 12 Mission mit einem Abbruch enden können. 36,5 und 52 Sekunden nach dem Start wurde Apollo 12 von Blitzen getroffen. Das führte zur Abkopplung der Energiezellen und dem Verlust von Telemetriedaten. Nur EECOM John Aaron erinnerte sich an ein mögliche Lösung, die LMP Alan Bean dann auch verstand.

Die Tatsache, dass die Saturn V Rakete ein eigenes Navigations- und Führungssystem besaß sorgte dafür, dass Apoll 12 trotz Ausfall der Leitsysteme im CSM den Erdorbit erreichte, wo die Crew die CSM Systeme erfolgreich wieder online bringen konnte.