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Near the bottom of the page, for the H2O2/N2H4 combo, in a vacuum, it lists the exhast velocity as 3700 m/s. I'm not an expert, but this seems very unlikely, given that LOX/kerosene is 3500, and in general LOX and kerosene are supposed to be better performing than H2O2/N2H4. Could someone who knows what they're doing run those calculations again? |
Near the bottom of the page, for the H2O2/N2H4 combo, in a vacuum, it lists the exhast velocity as 3700 m/s. I'm not an expert, but this seems very unlikely, given that LOX/kerosene is 3500, and in general LOX and kerosene are supposed to be better performing than H2O2/N2H4. Could someone who knows what they're doing run those calculations again? |
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:Hmm. I ran it on 'cpropep web'[http://rocketworkbench.sourceforge.net/equil.phtml], and got a maximum of 322 seconds. I wouldn't consider that to be definitive however. But your observations are very good ones; and I certainly distrust these figures.[[User:Wolfkeeper|WolfKeeper]] 22:51, 4 February 2006 (UTC) |
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==Units need to be specified == |
==Units need to be specified == |
Near the bottom of the page, for the H2O2/N2H4 combo, in a vacuum, it lists the exhast velocity as 3700 m/s. I'm not an expert, but this seems very unlikely, given that LOX/kerosene is 3500, and in general LOX and kerosene are supposed to be better performing than H2O2/N2H4. Could someone who knows what they're doing run those calculations again?
"Units have been converted to metric. "
All those units need to be specified, in all the tables. What's "pressure" in earlier table, for example. Gene Nygaard 17:08, 22 Dec 2004 (UTC)
Hmmm. "Pressure" is psia, which I'm sure you figured out from context. But this does bring up the point that psia is hardly metric. And 1000 psia is 6.894 MPa, which is hardly a nice round number. Iain McClatchie 19:38, 23 Dec 2004 (UTC)
Wolfkeeper,
You obviously know the subject, we're arguing over the meaning of words.
"believed" versus "noted".
"whilst being very energy dense and lightweight"
"where a hydrogen stage's low fuel mass"
"in practice"
I'm leaving your edits up for now so we can talk about this and resolve it. But I don't agree with all of them.
Iain McClatchie 22:23, 16 August 2005 (UTC)[reply]