Vallll
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Getting to look back at your spacecraft after it successfully brought you home from around the Moon has to be a great feeling

NASA HQ PHOTO@nasahqphoto
We've continued to comb through our images to find the best to share from the Artemis II return to Earth ! Check out some of the newest uploads from the HQ Photo teams coverage of #artemis II. flic.kr/s/aHBqjCQgrg
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@Peculiar_SNA @glyphkeeper @MCCCANM Ah got ya I didn’t know they had the cockpits set up differently
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@UndecidedValor @glyphkeeper @MCCCANM I’m well aware. Just stating that this isn’t a T-45 cockpit setup, it’s a Hawk setup.
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The “wavy” lines in the canopy glass (plastic) are not antennas…they are explosive cords.
In the movies, an ejection is preceded by the jet’s canopy being blown off. “Goose” got killed in Top Gun because it didn’t happen fast enough & the seat hit the canopy.
Some jets took a different approach, though. Rather than jettison the canopy, which is complicated & can fail, why not just blow it up? Shatter it into a thousand pieces that won’t hurt the pilot. This can shorten the ejection sequence, too, as you don’t need to allow as much time for the canopy to clear the ejection path (we’re talking fractions of a second, but still…).
Anyway, this is the design they came up with. It’s known as a “Canopy Fracturing System”. It’s automatically triggered when you pull the ejection handle, but can be manually triggered as well without ejecting. I suppose that might be useful if smoke is accumulating in the cockpit.
Now, jets that blow the whole canopy off instead of blowing it up have a somewhat complicated system to accomplish this. The system has to release the hooks locking the canopy onto the jet; it often does this by pushing hot gas from an explosive through tubes that push the hooks back (there are several methods, though). Kind of like firing a gun.
Both systems can fail, though the explosive cord is considered very reliable…they put it in the F-35 (and I had it on the T-6). As a backup, the top of the ejection seat has a little pointy end on it. In theory, this point should hit the canopy before your head does if the canopy is still there in an ejection, shattering it before the canopy shatters your spine. I’d guess that has happened before, but I can’t recall any examples.
Older jets sometimes got around all of this by just ejecting you downward. A hole would open up in the floor & the seat departs that way. The disadvantage here is obvious…you’ll have a higher minimum safe ejection altitude. This system still exists in the B-52. The seats back then were not quite as sophisticated as they are now…
Today’s seats detect your orientation. If you eject while inverted, the seat will fire just enough to get you out of the jet, then right itself to point upward & fire again. When the seat has done its job, it automatically cuts the belts & straps that held you in & departs. The seat itself contains the parachute…so when you strap in, you’re strapping on the parachute…obviously, the seat doesn’t cut that, it’s the parting gift.
The parachute has a barometric sensor that automatically deploys it if below a set altitude. If flying over high terrain (higher than the standard set altitude), you can rig it to immediately deploy the parachute on seat separation.
The parachute also has an emergency oxygen bottle. This is not automatic, but pulling a cord will start the short flow of oxygen (I think it’s like 4 or 5 minutes, can’t remember). The hose for your oxygen mask is connected to the jet but is designed to break-away from the jet at the connection in an ejection; a smaller hose connects to a point on the parachute harness that will provide the emergency oxygen.
The seat also contains a small survival kit & may be fitted with an automatically inflating raft for water landings. These will dangle underneath you as you descend.
Ok, that’s about all I can recall off the top of my head. The ejection sequence is very, very short…pull the handle & you’ll be gone before you know it. In two-seat jets, the back seat goes first to prevent them from being burned by the rocket on the front seat. There is a sequencing lever in the jet that allows pilots to select if both seats will fire if any ejection handle is pulled, though…so you can select that each seat must pull its own handle. Useful if doing orientation rides for non-pilots…you don’t want them ejecting you, too.

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His name is Rise Wiseman, Reid's son
jenna@pufflefuzz1
Reid and rise are a bonded pair. Do not separate
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I think it's cute that the astronauts wear their flight suits all the time.
I remember seeing them randomly at SpaceX, always suited up. It was kinda jarring too because you'd just get astronaut mogged out of nowhere.
Laura ✨@lau_luna__
Houston, they’re home! Artemis II has landed back at Ellington Field in Houston, TX. Just now Reid, Victor, Christina and Jeremy were welcomed home with big hugs all around from the astronaut corp!
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I stood under that bomb bay. In some ways the plane is smaller and bigger than you think.
hw97karbine@hw97karbine
Convair B-36 Peacemaker heavy bomber unloading the contents of its cavernous bomb bay during a live fire demonstration in Florida in 1954
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astronaut neighborhood cookouts are so back
Owen Sparks@OwenSparks
Artemis II astronaut Victor Glover received a hero's welcome from his neighbors! 🇺🇸
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Iran has deployed its Ghadir-class midget submarines in the Persian Gulf and near the Strait of Hormuz. A large number of these submarines have been deployed and given clear instructions that if any enemy ship crosses into Iran’s waters, they should immediately destroy it. These submarines are specifically designed to operate in shallow waters, and the United States has no counter to them.

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THE FUNDRAISER IS LIVE! Please donate if you can to camimis family and the many other families that were affected in Lebanon. If you cant donate pls just spread the word or like the video! I will be donating the ad rev as well as some more! Thank you🤍🖤
youtu.be/KVbXVusdJZg

YouTube
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