Re: [ERPS] Re: Book, Single Stage to Orbit

2004-03-13 Thread George William Herbert
ong suspicions that there are LAP/nearlySSTO solutions where it is in fact a lot cheaper, despite the GLOW and propellant costs... The devil is in the details. You have to make common assumptions about design parameters and then compare apples and apples. -george

Re: [ERPS] peroxide compatibility question

2004-03-28 Thread George William Herbert
Has anyone tried gold? No, seriously, it's usually very inert and is easy and cheap to plate on reliably with electroplating. I have not seen any data on gold plus peroxide, though, and "usually very inert" and "peroxide" are not necessarily good assumptions... -geor

Re: [ERPS] Armadillo 4/18

2004-04-19 Thread George William Herbert
..other than sloshing propellant, which may be a significant factor in a real system. -george william herbert [EMAIL PROTECTED] ___ ERPS-list mailing list [EMAIL PROTECTED] http://lists.erps.org/mailman/listinfo/erps-list

Re: [ERPS] Armadillo 4/18

2004-04-19 Thread George William Herbert
as getting into a slosh/maneuver feedback loop would quite possibly be a Bad Day. -george william herbert [EMAIL PROTECTED] ___ ERPS-list mailing list [EMAIL PROTECTED] http://lists.erps.org/mailman/listinfo/erps-list

Re: [ERPS] Re: New Igniter Project Update

2004-05-12 Thread George William Herbert
or amateur work. -george william herbert [EMAIL PROTECTED] ___ ERPS-list mailing list [EMAIL PROTECTED] http://lists.erps.org/mailman/listinfo/erps-list

Re: [ERPS] inertial systems

2004-06-01 Thread George William Herbert
>I just got a quote from KVH yesterday for their new 6DOF FOG IMU system -- >$25,000 and 10-12 weeks delivery. Model number check. The TG-6000? -george william herbert [EMAIL PROTECTED] ___ ERPS-list mailing list [EMAIL PROTECTED

Re: Multiple engines (was RE: [ERPS] Liquox)

2004-06-10 Thread George William Herbert
icronozzles across the plate. Cast inconel plates with the nozzles preformed aren't that expensive, and can operate at the required temps for many of the propellants. Probably including your mixed monoprop. Stainless is probably even good enough for that mixture. -george william herbert