| 2022/10/23 | ExpenseForm.xlsx | E.R.P.S. Expense Form Spreadsheet |
| 2010/06/28 | National_Space_Policy_2010-06-28.pdf | White House's National Space Policy statement |
| 2008/12/04 | AmateurRocketsFPR.pdf | Final Proposed Rules for Amateur Rocket regulation |
| SpikeBudget.htm | Proposed budget for the Spike Project | |
| 2006/11/06 | ExpenseReport.pdf | Expense Form |
| 2002/04/13 | kiss2-sop_redlined.pdf | KISS_Reflight SOP |
| 2000/04/19 | ERPS-SA2000.pps | E.R.P.S. presentation for Space Access 2000 conference, 19 Apr 2000 |
| 2000/01/21 | Blackhawk 50lb HTP engine.pdf | Dan's drawing of the Blackhawk 50 lbf engine |
| erps-1st.pdf | Revised Incorporation - 1st Board Meeting | |
| erps-art.pdf | Revised Incorporation - Articles of Incorporation | |
| erps-byl.pdf | Revised Incorporation - Bylaws | |
| 1999/07/19 | RLV-Response.PDF | E.R.P.S.'s detailed response to the FAA NPRM for Reusable Rocket Vehicle licensing. |
| 1999/04/09 | checklist.html | Teststand firing checklist |
| 1999/03/25 | POGO-Flight.html | POGO vehicle flight simulation |
| 1994/02/16 | ARTICLES.pdf | Original Incorporation - Articles |
| 1994/02/16 | BYLAWS.pdf | Original Incorporation - Bylaws |
| 1993/01/17 | SSTORwNCP.pdf | A Single Stage To Orbit Rocket with Non-Cryogenic Propellants This is the paper that started E.R.P.S. - Mitchell Burnside-Clapp's high density propellant paper from Makin' Orbit '93. |