LDRS 38 is the Tripoli Rocketry Association's national high-power launch. The 2019 edition of LDRS was sponsored by the KloubBusters. It was held on August 29‑September 2, 2019 at the world-renowned Argonia, Kansas Rocket Pasture. What does LDRS mean? Large Dangerous Rockets Ships. This video contains only a small percentage of the flights that we launched over the 5-day event. Thanks to the Kloudbusters for hosting an epic 5-day event.