>From a safety standpoint, its probably a draw between HTP and LOX. From a 'fuel' cost and Isp standpoint, LOX is probably the winner. From the density impulse standpoint, 99% HTP/kerosene will probably beat LOX/kerosene. If you consider that HTP can also be used for the RCS engines and could be utilized in a fuel cell for in-orbit operations, yielding O2 and water, it *could* be the overall winner. I've also heard that frozen HTP has a density of 1.7 gm/cc (I should check this). If the oxidizer tank could hold frozen HTP instead of liquid HTP, that would greatly increase the density impulse. But, you'd need to weigh the extra complexity of liquifying it before it heads for the engine (some sort of heat exchanger system between the engine and tank).
BTW, how much is LOX in large volumes? Dan In a message dated 6/22/02 7:01:22 PM, [EMAIL PROTECTED] writes: << On the other hand, I feel that designing a new vehicle to use tons of it at a time, several times a day, is not reasonable. >> _______________________________________________ ERPS-list mailing list [EMAIL PROTECTED] http://lists.erps.org/mailman/listinfo/erps-list