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AeroDork Profile picture
@AeroDork
Aug 26, 2019 • 9 tweets • 3 min read • Read on X
Scrolly
In 1946, NACA (NASA) wanted to see how much wind a human could tolerate. Specifically, they sought "to obtain direct evidence of the forces involved when the human head is suddenly thrust into a rapidly moving air stream."
This became important when ejection seats started to standardize. Blasting someone out of a canopy into the jet stream warranted a little looking into.
Speed: 100mph
Speed: 165mph
Speed: 226mph
Speed: 311mph
Speed: 380mph
Speed: 457mph

(FINAL)
Read the full report, here: digital.library.unt.edu/ark:/67531/met…

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More from @AeroDork

AeroDork Profile picture
Oct 31, 2022
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Sep 17, 2020
The way it was...(1/5)
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AeroDork Profile picture
Aug 8, 2019
Thread: The weird story of how a carefully covered up German air raid in WW2 contributed to the development of modern chemotherapy drugs.
As the tide of WW2 turned in late 1943, the allies suspected that increasingly desperate Germans would turn to chemical weapons. In preparation, they secretly parked a boat load of mustard gas at the captured Italian port of Bari.
On the night of December 2, 1943, 105x Ju-88 bombers hit the harbor at Bari hard, sinking or damaging 40 allied ships.
Read 8 tweets
AeroDork Profile picture
Jun 11, 2019
Beginning in 1967, the Soviet Union placed a series of radar-equipped ocean reconnaissance satellites (RORSATs) in orbit. In order to return useful data, they had to fly quite low...so low that using solar panels would have caused drag that decayed their orbits very quickly.
To save weight, lower drag, and increase usable lifespan, Soviet engineers opted for BES-5 nuclear reactors fueled by uranium-235. They provided 2KW of power per satellite.
But, yeah, putting highly radioactive material in very low earth orbit? Not a great idea.

You can imagine what happened next.
Read 9 tweets
AeroDork Profile picture
Mar 18, 2019
It's not from the 70s.
Or the 60s.
Or even the 1950s.

Feast your eyes on the Northrop YB-49 Flying Wing...circa 𝟭𝟵𝟰𝟳.
The YB-49 began life as the YB-35: A piston powered heavy bomber prototype. They were designed as a contingent in the event that England fell to the Nazis. They were to carry crew of 9 over 8,000 miles with up to 50,000lbs of bombs.
At the end of the war, the YB-35 got upgraded from pistons to jets, gaining 8x Allison J35-A-15 turbojets and a new designation: YB-49.
Read 6 tweets
AeroDork Profile picture
Feb 12, 2019
In the early hours of September 3, 1916, bombs joined the rain falling from the sky above London Colney and South Mimms, England.
Obscured by might, the crew of Zeppelin Schütte-Lanz SL 11 dropped their high explosive payload. Shortly after, they were picked up by searchlight above Hornsey and targeted by an ineffective barrage. They slipped into the clouds undamaged.
Roughly 15 minutes later, the monolithic SL 11 began bombing Ponders End. The ship was spotted again by searchlights at Waltham Abbey. This time, fighters scrambled into action.
Read 8 tweets

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