Found these papers by happenstance. Don't know if these are all well known or not but seem interesting. Some are in well known locations, others not so much so. All linked. ________________ Alternate Propellants for SSTO launchers. Dr Bruce Dunn. Based on a 1996 Space Access paper. Compares LOX and HTP with all the usual and a few unusual mixes against RP1 reference performance. http://www.dunnspace.com/alternate_ssto_propellants.htm MAPP gas looks interesting. ________________________ "Information for the Rocket Propulsion and Launcher Community " http://www.dunnspace.com/index.htm Including LEO on the cheap 12.47 MB pdf Air University Research Report AU-ARI-93-8 Lt. Col. John R. London III AND Self pressurised biprops http://www.dunnspace.com/self_pressurized_rockets.htm ________________________ Refers to and provides an MSDOS Isp program that appears potentially useful. Based on / is ? the "Air Force Chemical Equilibrium Specific Impulse Code". Comparison with PROPEP? Description http://www.dunnspace.com/isp.htm Code http://www.dunnspace.com/isp2001.zip __________ Columns on Minimum Cost Design Arthur Schnitt. As A.S. was Chief Structures Engineer at Bell Aircraft until leaving them to join Aerospace in 1958 his views are liable to be at least worth noting. A lot of this is related to things that happened long ago but which are still very relevant now. He rehashes the by now not totally unfamiliar maximum technology versus minimum cost paradigm comparisons, BDB etc. These papers were written 1997 - 1998. Arguably not tooo much has changed since then but people are (still) trying to actually do it. http://www.dunnspace.com/home.html#Columns ______________ A SSTO thought experiment Gary Hudson Space Access 1991 SSTO based on S-IVB with 1 x SSME or Shuttle ET + 6 x SSME. Phoenix not wholly unlike the former I think. http://www.spacefuture.com/archive/a_single_stage_to_orbit_thought_experiment.shtml _____________ -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist