Ed Smylie, Who Saved the Apollo 13 Crew With Duct Tape, Dies at 95

Joined
Dec 11, 2008
Messages
6,940
Reaction score
21,258
Location
Pacific North-Wet
Free NYT article here. The Red Green of the aerospace industry!

Ed Smylie, the NASA official who led a team of engineers that cobbled together an apparatus made of cardboard, plastic bags and duct tape that saved the Apollo 13 crew in 1970... died on April 21 in Crossville, Tenn.​
To survive, the astronauts would somehow need to refresh the canisters of lithium hydroxide that would absorb the poisonous gases in the lunar excursion module. There were extra canisters in the command module, but they were square; the lunar module ones were round.​
“You can’t put a square peg in a round hole, and that’s what we had,” Mr. Smylie said.​
Their ingenious solution: an adapter made of two lithium hydroxide canisters from the command module, plastic bags used for garments, cardboard from the cover of the flight plan, a spacesuit hose and a roll of gray duct tape.​
“If you’re a Southern boy, if it moves and it’s not supposed to, you use duct tape.”​
...Mr. Smylie’s lifesaving invention was a seminal moment in the storied history of duct tape, the jack-of-all trades tool-kit item.​
“Duct tape has come to enjoy a kind of heroic and ever more pervasive presence in American life,” Tisha Y. Hooks observed in “Duct Tape and the U.S. Social Imagination,” the dissertation she wrote at Yale University in 2015. “From the Apollo 13 mission to the broken basement pipe,” she wrote, “duct tape is there.”​
 
Register to hide this ad
I read that; what a great story. It makes me wonder if solutions like that will be harder the higher tech we get, or id uct tape will be around forever.
I suspect duct tape will be with us for a very long time, but I bet one very valuable lesson was learned: On mission-critical projects, don't mix "square pegs and round holes"!
 
To survive, the astronauts would somehow need to refresh the canisters of lithium hydroxide that would absorb the poisonous gases in the lunar excursion module. There were extra canisters in the command module, but they were square; the lunar module ones were round.​
Not poisonous gases, but carbon dioxide, which in an enclosed space accumulates as we breathe. It displaces the free oxygen in the air, reducing how much we breathe in and if the level gets high enough, we die by asphyxiation. Carbon dioxide in itself is not poisonous to us; it is a product of exhalation.

Lithium hydroxide, in the presence of water vapor (also present when we exhale), converts carbon dioxide into lithium carbonate and water. The cannisters eventually absorb as much as they can convert and then have to be replaced by fresh ones.

The Command/Service Module was built by North American Aviation, the Lunar Module was built by Grumman Aircraft Engineering. It's probably a true sign of government contracting that the two companies didn't work together to commonize many of the parts, most especially the lithium hydroxide cannisters so the same ones could be used in both the Command Module as well as the Lunar Module.
 
Not poisonous gases, but carbon dioxide, which in an enclosed space accumulates as we breathe. It displaces the free oxygen in the air, reducing how much we breathe in...
Yes, I wondered about that. Journalistic licence/ignorance.
It's probably a true sign of government contracting that the two companies didn't work together to commonize many of the parts, most especially the lithium hydroxide cannisters so the same ones could be used in both the Command Module as well as the Lunar Module.
I'm sure this kind of thing happens FAR more often than we realize! :eek:
 
Yes, I wondered about that. Journalistic licence/ignorance.

I'm sure this kind of thing happens FAR more often than we realize! :eek:
Who cares?
Let's all give a salute or a tip of the hat to Ed Smylie, a great example of the kind of behind the scenes work necessary to the success of any great endeavor be it peacetime or war.
RIP
 
The perils of collaboration are amply illustrated by the 1960s era attempt by Germany and the US to jointly develop a main battle tank. The prototypes required both metric and standard tool sets as just one example of mismatch, but that could have been resolved if there hadn't been more substantial issues. The MBT-70 project died in 1971.
 

Latest posts

Back
Top