LDRS (Large and Dangerous Rocket Ships) is an annual high power rocket launch held by the Tripoli Rocketry Association each summer in differing locations. Traditionally, it has been the national high power launch frequently drawing attendees from all corners of the United States, as well as many flyers from abroad.
The first LDRS was held in 1982 near Medina, Ohio, at a time when high power rocketry was in its infancy, and there were no other venues for participation.
| Event Number | Location | Dates | Notes |
| 1 | Medina, Ohio | 24-25 July, 1982 | |
| 2 | Medina, Ohio | 1983 | |
| 3 | Medina, Ohio | 1984 | |
| 4 | Medina, Ohio | 1985 | First Tripoli-sponsored LDSR |
| 5 | Medina, Ohio | 1986 | |
| 6 | Hartsel, CO | 1987 | |
| 7 | Hartsel, CO | 1988 | |
| 8 | Hartsel, CO | 1989 | |
| 9 | Hartsel, CO | 1990 | |
| 10 | Black Rock, NV | 1991 | |
| 11 | Black Rock, NV | 1992 | |
| 12 | Argonia, KS | 1993 | |
| 13 | Argonia, KS | 1994 | |
| 14 | Black Rock, NV | 1995 | |
| 15 | Orangeburg, SC | 1-4 July, 1996 | |
| 16 | Hartsel, CO | 1997 | |
| 17 | Wendover, UT | 6-9 August, 1998 | |
| 18 | Argonia, KS | 1999 | |
| 19 | Orangeburg, SC | 2000 | |
| 20 | Lucerne Valley, CA | 19-22 July, 2001 | |
| 21 | Wayside, TX | 11-16 July, 2002 | |
| 22 | Argonia, KS | 2003 | |
| 23 | Geneseo, NY | July 2004 | |
| 24 | Lethbridge, AB | 14-19 July, 2005 | First LDSR outside of United States |
| 25 | Wayside, TX | 29 June-4 July, 2006 | |
| 26 | Jean, NV | 12-17 July, 2007 | |
| 27 | Argonia, KS | 28 Aug-2 Sept, 2008 | |
| 28 | Potter, NY | July 2009 | |
| 29 | Lucerne Valley, CA | 10-15 June, 2010 | |
| 30 | Argonia, KS | 1-6 Sept, 2011 | |
| 31 | Potter, NY | 12-16 July, 2012 |