THIS DAY IN HISTORY – Apollo 13 launches to the moon – 1970

Via History.com

On April 11, 1970, Apollo 13, the third lunar landing mission, is successfully launched from Cape Canaveral, Florida, carrying astronauts James A. Lovell, John L. Swigert and Fred W. Haise. The spacecraft’s destination was the Fra Mauro highlands of the moon, where the astronauts were to explore the Imbrium Basin and conduct geological experiments. After an oxygen tank exploded on the evening of April 13, however, the new mission objective became to get the Apollo 13 crew home alive.

At 9:00 p.m. EST on April 13, Apollo 13 was just over 200,000 miles from Earth. The crew had just completed a television broadcast and was inspecting Aquarius, the Landing Module (LM). The next day, Apollo 13 was to enter the moon’s orbit, and soon after, Lovell and Haise would become the fifth and sixth men to walk on the moon. At 9:08 p.m., these plans were shattered when an explosion rocked the spacecraft.

Oxygen tank No. 2 had blown up, disabling the normal supply of oxygen, electricity, light, and water. Lovell reported to mission control: “Houston, we’ve had a problem here,” and the crew scrambled to find out what had happened. Several minutes later, Lovell looked out of the left-hand window and saw that the spacecraft was venting a gas, which turned out to be the Command Module’s (CM) oxygen. The landing mission was aborted.

As the CM lost pressure, its fuel cells also died, and one hour after the explosion mission control instructed the crew to move to the LM, which had sufficient oxygen, and use it as a lifeboat. The CM was shut down but would have to be brought back on-line for Earth reentry. The LM was designed to ferry astronauts from the orbiting CM to the moon’s surface and back again; its power supply was meant to support two people for 45 hours. If the crew of Apollo 13 were to make it back to Earth alive, the LM would have to support three men for at least 90 hours and successfully navigate more than 200,000 miles of space. The crew and mission control faced a formidable task.

To complete its long journey, the LM needed energy and cooling water. Both were to be conserved at the cost of the crew, who went on one-fifth water rations and would later endure cabin temperatures that hovered a few degrees above freezing. Removal of carbon dioxide was also a problem, because the square lithium hydroxide canisters from the CM were not compatible with the round openings in the LM environmental system. Mission control built an impromptu adapter out of materials known to be onboard, and the crew successfully copied their model.

Navigation was also a major problem. The LM lacked a sophisticated navigational system, and the astronauts and mission control had to work out by hand the changes in propulsion and direction needed to take the spacecraft home. On April 14, Apollo 13 swung around the moon. Swigert and Haise took pictures, and Lovell talked with mission control about the most difficult maneuver, a five-minute engine burn that would give the LM enough speed to return home before its energy ran out. Two hours after rounding the far side of the moon, the crew, using the sun as an alignment point, fired the LM’s small descent engine. The procedure was a success; Apollo 13 was on its way home.

For the next three days, Lovell, Haise and Swigert huddled in the freezing lunar module. Haise developed a case of the flu. Mission control spent this time frantically trying to develop a procedure that would allow the astronauts to restart the CM for reentry. On April 17, a last-minute navigational correction was made, this time using Earth as an alignment guide.

Then the re-pressurized CM was successfully powered up after its long, cold sleep. The heavily damaged service module was shed, and one hour before re-entry the LM was disengaged from the CM. Just before 1 p.m., the spacecraft reentered Earth’s atmosphere. Mission control feared that the CM’s heat shields were damaged in the accident, but after four minutes of radio silence Apollo 13‘s parachutes were spotted, and the astronauts splashed down safely into the Pacific Ocean.

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12 Comments
MrLiberty
MrLiberty
April 11, 2020 9:24 am

It left the ground, but never left near-earth orbit.

CCRider
CCRider
April 11, 2020 9:33 am

Who knows what to believe. Certainly not the government or ron howard.

MrLiberty
MrLiberty
  CCRider
April 11, 2020 5:07 pm

And certainly NOT Tom Hanks.

G_T_Void
G_T_Void
April 11, 2020 10:20 am

Yeah, launched out over the ocean of a flat Earth, not to space. The moon is not a place to be gotten to, it is not solid and not very big, and only a few thousand miles away. A self-illuminating sphere of wonder.

TC
TC
April 11, 2020 10:21 am

Nothing like overcoming a great difficulty, some spectacular challenge, to unite a nation that’s falling apart at the seams. Huh?

Sionnach Liath
Sionnach Liath
April 11, 2020 11:51 am

We (my wife and I) were personal friends with 2 of the LM engineers who designed and built that module. Our kids and theirs went to school together. You can believe me when I say that those guys were scared shitless at the potential for disaster.

Anonymous
Anonymous
  Sionnach Liath
April 11, 2020 1:01 pm

nobody’s going to believe you here 😉 peer pressure here says be a moon hoaxer or get out .

MrLiberty
MrLiberty
  Sionnach Liath
April 11, 2020 5:16 pm

My father in law was chief engineer at Rockwell on the Apollo program. His own mother NEVER believed that we went to the moon, and given how “siloed” the entire program was “for national security” of course, it is quite possible for everyone to be busting their individual asses, working on their own little part of the project, putting it together as if it was going to go to the moon (yes, it certainly lifted off – a LIVE audience saw that), but beyond that, none of them were high enough up the food chain to know the truth.

MrLiberty
MrLiberty
  MrLiberty
April 11, 2020 9:28 pm

The sad part is that my wife and I only became aware of the moon landing scam and the long list of “irregularities” in the story, footage, etc. AFTER his death. He seemed like a guy who would have been open to an honest discussion. He served in WW2, so he knew government bullshit was a common problem. Those nice paychecks and great pension sure made up for whatever his “ignorant” role in the conspiracy was.

subwo
subwo
  Sionnach Liath
April 12, 2020 12:31 am

Did those engineers design the LM hatch smaller than the life support units the astronauts wore? Read the book Dark Moon to find what I refer to.

Steve
Steve
April 11, 2020 8:47 pm

“For the next 3 days they huddled in the freezing craft”
Space is something like 200 below zero. I bet it was cold, huh!
Read MoonDoggie. That will settle any questions.

Vixen Vic
Vixen Vic
April 11, 2020 10:06 pm

Turned out to be a successful movie. But it was all fiction.