| astronautix.com | Star 26C |
Upper stage motor employs the titanium alloy case and nozzle attachment ring of the STAR 26B design to provide high propellant mass fraction and is insulated for high-spin-rate applications. The motor is used as an upper stage in the Sandia National Laboratories Strypi IV vehicle and in the U.S. Army's Designated Optical Tracker vehicle. Total impulse 63,389 kgf-s. Propellant mass fraction 0.88.