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Post by AtomHeartDragon on Nov 9, 2018 23:47:03 GMT
Soloing Vesta with 4kt, stock module "Valravn" corvette, at gun range (no offensive missile salvoes, no counter-intercepts):
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Post by airc777 on Nov 12, 2018 0:07:46 GMT
Standard operating procedure in the event of 30 megaton missile swarm is now to adjust course about 30 degrees left. Crew survives fine.
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Post by AtomHeartDragon on Dec 4, 2018 23:41:13 GMT
Shooting fast moving target with stock 60mm.
How fast?
Say, 40km/s.
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Post by AtomHeartDragon on Jan 16, 2019 20:19:47 GMT
Chiaroscuro in BLAM,
AKA Main Belt Destruction Extraction with my "Basilisk" class destroyer as seen from afar: ...Because nothing says "disarm and immobilize a space battleship WITHOUT killing everyone on board" like spamming it with dozens of cannon launched nukes.
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Post by doctorsquared on Jan 17, 2019 2:56:38 GMT
Chiaroscuro in BLAM,
AKA Main Belt Destruction Extraction with my "Basilisk" class destroyer as seen from afar: ...Because nothing says "disarm and immobilize a space battleship WITHOUT killing everyone on board" like spamming it with dozens of cannon launched nukes. "Disable the gunship" Okay, I knocked out all of the radiators and the ship has no power. It can't maneuver or fire at us. "Nope. It's lost power but I said I wanted it disabled." Well, it's going to be the shortest defection in history since that guy's going to tell us what he knows before dying of radiation poisoning.
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Post by airc777 on Feb 13, 2019 23:12:17 GMT
Can confirm: 500 Mt yield is sufficient to sublimate a Gunship.
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Post by The Astronomer on Feb 17, 2019 5:50:49 GMT
For me I just use giant lasers targetting at the radiators and pray it doesn't kill the crew
It's how I won the match in less than a second
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Post by AtomHeartDragon on Feb 17, 2019 10:08:18 GMT
For me I just use giant lasers targetting at the radiators and pray it doesn't kill the crew It's how I won the match in less than a second For gunship it's usually a good idea to vape crew radiators first. Then you can burn/poke through the hull and wreck the NTRs and power reactors at your leisure.
You will probably want to hurry with your boarding though.
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Post by The Astronomer on Feb 17, 2019 10:28:00 GMT
For me I just use giant lasers targetting at the radiators and pray it doesn't kill the crew It's how I won the match in less than a second For gunship it's usually a good idea to vape crew radiators first. Then you can burn/poke through the hull and wreck the NTRs and power reactors at your leisure.
You will probably want to hurry with your boarding though. Not possible with that giant lasers ship though, as it just rips the gunship apart at the first frame.
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Post by AtomHeartDragon on Jul 7, 2020 21:06:56 GMT
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Echo
Full Member
Posts: 141
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Post by Echo on Jul 28, 2020 10:53:16 GMT
Why are you using UDMH instead of MMH?
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Post by AtomHeartDragon on Jul 28, 2020 20:16:57 GMT
Why are you using UDMH instead of MMH? Stabler I think? Anyway, I'll probably switch my very small missiles over to just straight hydrazine-NTO. Better exhaust velocity, smaller magazines and some extra boom on collision.
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Post by cipherpunks on Jul 29, 2020 22:45:03 GMT
Why are you using UDMH instead of MMH? Stabler I think? That is not the case; it's quite the contrary - MMH is more stable, but UDMH is more performant. Aerozine 50 is known to be stabler too, but with better thermal characteristics and density. If your main concern is density, then look into MMH+N 2H 4 mix ( can't vouch for its stability). Also you might want to look into Ariane's UH 25. Oxidizer-wise, look into MON-3 & MON-25 which are mixes of N 2H 4 + noted % of NO ( to lower the freezing point). Ignition! by John Clark is a good read, albeit old. Newer, less toxic and sometimes easier to produce fuels also exist, for example what is called CINCH, and ADN-based FLP-106 as well as LMP-103S (the latter is touted as being 1:1 replacement for N 2H 4 engine-wise, only with better Isp). In KSP, I liked hybrid rockets very much (polymer+liquid, seldom polymer+gas); but IRL they were still concerned with flame instability which would occur sometimes in those last time I heard. I probably should research Li/LiH/PBAN/FLOX hybrids one day, they're touted as being capable of almost 400s Isp (!!!)
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Post by AtomHeartDragon on Jul 30, 2020 6:08:47 GMT
That is not the case; it's quite the contrary - MMH is more stable, but UDMH is more performant. According to Ignition! it actually seems to be the other way around? p.43:
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Post by cipherpunks on Jul 30, 2020 15:11:33 GMT
That is not the case; it's quite the contrary - MMH is more stable, but UDMH is more performant. According to Ignition! it actually seems to be the other way around? I stand corrected, and in future should refrain from writing while being half-asleep. I meant the other way around, then I glitched.
| UDMH | MMH | Density @ 22°C | 791 kg m−3 | 875 kg m−3 | Melting point | 216 K | 221 K | Boiling point | 337.1 K | 360.65 K | Vapor pressure @ 20°C | 13.7 kPa | 5.00 kPa | Heat capacity | 164.05 J K−1 mol−1 | 134.93 J K−1 mol−1 | Vaporization enthalpy | 36.5 kJ/mol | 41.8 kJ/mol | in-game Isp (example) | 295.7 | 297.8 | in-game tank MR (Al 1t*1) | 2.0 (2.05t overall) | 2.1 (1.95t overall) | 100+9kg craft in-game dV | 6.79 km/s | 6.85 km/s | 100+9kg craft acceleration | 0.217-1.91g | 0.219-1.94g |
UDMH is touted as more stable at high temperatures (?) but unsuitable for regenerative coolant, only RD-253 is cooled by UDMH anywayalso see ia600501.us.archive.org/24/items/nasa_techdoc_19980228367/19980228367.pdfMMH is easier to tank & keep from freezing, CAN be used as regenerative coolant, and is touted as not sensitive to impacts. also see sci-hub.tw/10.1021/acs.jpca.0c03144also see sci-hub.tw/10.1021/jp067591lTBH decomposition chain graphs are hard to follow; if one group of experimenters did both fuels, it'd be easier, but I haven't saw such pair of reports.
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