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Connecticut Engineer Recalls His Role In Historic Moon Landing

Saturday, July 20th marks the 50th anniversary of the Apollo 11 Moon Landing. Several Connecticut companies played an important role in the historic mission.

82 year-old Donald Rethke was a mechanical engineer at Hamilton Standard in Windsor Locks in 1969. He helped design the life support systems and the heating system on the lunar module used in the moon landing.

Speaking on Connecticut Public Radio's Where We Live, he said on July 20th he and other engineers were holed-up in a makeshift mission control booth at Hamilton Standard.

“We actually threw out the managers, and took out our slide rules and our strip charts,” said Rethke. “We had a landline phone with a speaker attached to it -- if Houston had a problem they'd call us. In the corner we had a black-and-white TV set. I reported on duty to this area and stayed there for six hours during the walk on the moon. Actually we had no significant problems.”

Credit Donald Rethke
A newspaper clipping from July 24th, 1969 the day Apollo 11 successfully landed in the North Pacific Ocean.

Rethke’s knowledge of the lunar module was also instrumental in getting the Apollo 13 astronauts safely back to earth in 1970.

Two days into the mission an oxygen tank exploded in the command module, rendering it useless. The mission was aborted. Rethke and other engineers were tasked with figuring out how to get the astronauts safely home in the lunar module.

“They used the lunar module life support system as a lifeboat,” said Rethke. “That system was designed for two days for two astronauts on the moon. Now it became a lifeboat that was for four days for three astronauts. We were there for four days, port and starboard to help these guys get back to earth.”

Rethke later went on to develop a sit-down toilet system for astronauts on later missions, earning the nickname "Dr. Flush."

Ray Hardman is Connecticut Public’s Arts and Culture Reporter. He is the host of CPTV’s Emmy-nominated original series Where Art Thou? Listeners to Connecticut Public Radio may know Ray as the local voice of Morning Edition, and later of All Things Considered.

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SOMOS CONNECTICUT is an initiative from Connecticut Public, the state’s local NPR and PBS station, to elevate Latino stories and expand programming that uplifts and informs our Latino communities. Visit CTPublic.org/latino for more stories and resources. For updates, sign up for the SOMOS CONNECTICUT newsletter at ctpublic.org/newsletters.

SOMOS CONNECTICUT es una iniciativa de Connecticut Public, la emisora local de NPR y PBS del estado, que busca elevar nuestras historias latinas y expandir programación que alza y informa nuestras comunidades latinas locales. Visita CTPublic.org/latino para más reportajes y recursos. Para noticias, suscríbase a nuestro boletín informativo en ctpublic.org/newsletters.

The independent journalism and non-commercial programming you rely on every day is in danger.

If you’re reading this, you believe in trusted journalism and in learning without paywalls. You value access to educational content kids love and enriching cultural programming.

Now all of that is at risk.

Federal funding for public media is under threat and if it goes, the impact to our communities will be devastating.

Together, we can defend it. It’s time to protect what matters.

Your voice has protected public media before. Now, it’s needed again. Learn how you can protect the news and programming you depend on.

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Connecticut Public’s journalism is made possible, in part by funding from Jeffrey Hoffman and Robert Jaeger.