Delft Aerospace Rocket Engineering (DARE) is a student rocketry organization at the Delft University of Technology. Within DARE, students design, build, and launch rockets and perform research on various rocketry-related topics. DARE provides student members with the opportunity to apply the knowledge obtained during their study, giving members hands-on experience with space projects. DARE has around 180 members and has flown over 150 rockets since its founding in 2001. Over the years, DARE developed solid, hybrid and liquid-fueled rocket engines, ranging from 100 N to over 10.000 N thrust. In 2009, DARE broke the European altitude record for amateur rocketry with the Stratos rocket, which was launched from Kiruna, Sweden, and reached an altitude of 12.5 km. In October 2015, DARE launched the Stratos II+ rocket to an altitude of 21.5km, with which it broke the European Altitude Record. DARE also provides the rockets for the annual Dutch CanSat competition, organized by TU Delft and ISIS. During the CanSat competition, teams of high school students design a satellite that is launched to about 1 km altitude. In addition various TU Delft students have graduated on DARE-related projects.