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Everything posted by DDE
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And this is where it starts to get interesting. Namely, I start asking for definitions. Most of it is the product of the Chinese medium-orbit ASAT test. Russia's Nudol show-off last year was in a lower orbit and with a far lower impact velocity.
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totm aug 2023 What funny/interesting thing happened in your life today?
DDE replied to Ultimate Steve's topic in The Lounge
It's friday, my kerbs... -
For Questions That Don't Merit Their Own Thread
DDE replied to Skyler4856's topic in Science & Spaceflight
Anadyr's Ugolnyi airfield was built by the late 1950s, yes, but it was more of a planned development, complete with a nuclear weapons dump carved into sheer rock, and a battery of Pioneer MRBMs for SEAD. In a crash program, you could probably get an infrastructure going a lot earlier, using the competencies built up by ALSIB (who too used Anadyr). These were explored by Tu-16s and Tu-95s. It was marginal. Could probably work, but marginal. -
Chrome Lords (1988) I hope this isn't the AI's autoportraits
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Option 3: Flightradar is going bonkers
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An Air Force F-35A with the transponder code 13-5067 has squawked 7700 (general emergency) over Norway. Yesterday, 13-5067 squawked 7700 over Arizona. Option 1: USAF is into transponder shenanigans. Option 2: OSINTers have discovered USAF's least lucky pilot. Techies must HATE him.
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totm dec 2019 Russian Launch and Mission Thread
DDE replied to tater's topic in Science & Spaceflight
Soyuz-2.1b, Plesetsk, plural payloads https://www.interfax.ru/russia/874904 NSF doesn't have a good explanation for the paylaod -
Waterfall and Smokescreen for an Alumazine Plume.
DDE replied to AtomicTech's topic in KSP1 Mods Discussions
"Then, once the fuel is in the motor — and I won't go into the problem of designing an injector which will disperse a gel properly — there's the problem of burning the aluminum. Unless the chamber temperature is well above the melting point of aluminum oxide (about 2050°) or, preferably above the considerably higher temperature at which it decomposes, the aluminum particle will simply coat itself with a layer of solid or liquid alumina, and refuse to burn to completion. When burned with N2O4 the chamber temperature is just about high enough to burn an aluminized gel properly. It's highly probable that combustion with nitric acid would be marginal, with a chamber temperature not quite high enough to make the metal burn to completion. (With a halogen oxidizer, such as ClF3, this particular problem doesn't arise, since AlF3 is a gas at the temperatures we're talking about.) And, naturally, the dense clouds of solid Al2O3 resulting from the combustion of an aluminized gel leave a very conspicuous exhaust trail." John D. Clarke, Ignition! from about p. 183 onwards -
Waterfall and Smokescreen for an Alumazine Plume.
DDE replied to AtomicTech's topic in KSP1 Mods Discussions
You see, the problem I didn't mention is that these exhaust characteristics were a sign of failure and underperformance. Alumizine was abandoned by both the US and Soviets. It only really worked when paired with ClF5 instead of NTO, which I believe the US fired but the Soviets nevwr combined (the same SLBM upgrade program tried them separately). -
totm aug 2023 What funny/interesting thing happened in your life today?
DDE replied to Ultimate Steve's topic in The Lounge
* bows * -
For Questions That Don't Merit Their Own Thread
DDE replied to Skyler4856's topic in Science & Spaceflight
There are no significant obstacles why it wouldn't work on the Moon. Soviet BION-series underground ECLSS tests were fairly promising, if a bit restrictive on the culinary front. -
totm dec 2019 Russian Launch and Mission Thread
DDE replied to tater's topic in Science & Spaceflight
Plesetsk, Soyuz-2.1b, Cosmos-2564, likely a Glonass-M https://ria.ru/20221128/plesetsk-1834853074.html -
Alumizine's major problem was that the aluminium refused to burn, and would quickly precipitate in a silvery residue downrange. So, I imagine it would be "sooty" and smoky as all heck, closer to an SRB than an LRPE.
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Chinese Space Program (CNSA) & Ch. commercial launch and discussion
DDE replied to tater's topic in Science & Spaceflight
GG -
totm aug 2023 What funny/interesting thing happened in your life today?
DDE replied to Ultimate Steve's topic in The Lounge
My attempts to prevent a third cat have failed completely and utterly. -
"Connection with online translator lost"
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totm aug 2023 What funny/interesting thing happened in your life today?
DDE replied to Ultimate Steve's topic in The Lounge
Flag of Moscow: But it does have a firefighting mission. -
totm aug 2023 What funny/interesting thing happened in your life today?
DDE replied to Ultimate Steve's topic in The Lounge
Had Moscow's municipal Mi-26 buzz my home this morning. Red copter red copter red copter -
An attempt was made.
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totm dec 2019 Russian Launch and Mission Thread
DDE replied to tater's topic in Science & Spaceflight
EVA scrub due to suit cooling issues https://t.me/space78125/1401