Scout Launch Vehicle Flight History Page 3 of 3 Comprehensive Launch Failure List Date Vehicle ID Site Payload Failure Description Result# ------------------------------------------------------------------------------------------------------------------ 4/18/1960 Scout X SX-1 WI LA3 Cub Scout fast roll, struct fail S1 b/o, 48 km apog FSO* 7/1/1960 Scout X-1 ST-1 WI LA3 ST-1 unexp S3 roll, RSO S4 hold, 1380 km apog FSO* 12/4/1960 Scout X-1 ST-3 WI LA3 S-56 2nd stg ignition failure, no orbit FTO 5/9/1961 Blue Scout I D-6 CC LC18B HETS A1-2 Cntrl loss during S1 burn, 10 km apogee FSO* 6/30/1961 Scout X-1 ST-5 WI LA3 S-55 (Explorer) No 3rd stg ignition, bad igniter install FTO 8/25/1961 Scout X-1 ST-6 WI LA3 Explorer 13 Stg 4 tip-off error, reentered 8/28/61 (LEO) 11/1/1961 Blue Scout II D-8 CC LC18B Mercury-Scout 1 Cntrol loss, RSO 43s, pitch/yaw cable swap FTO 03/01/1962 Scout X1A ST-8 WI LA3 Reentry 1 S4 rupture 1/2 thru burn, RV low vel FSO* 4/12/1962 Blue Scout I D-7 CC LC18B Reentry Test Stg 2 did not ignite, 30 km apogee FSO* 4/26/1962 Scout X-2 S111 PA LC-D Poppy 2 Stg 3 H2O2 ACS not loaded, failed to orbit FTO 5/24/1962 Scout X-2M S112 PA LC-D DSAP 1 F1 Fld during S2 burn, improper assy? FTO 08/31/1962 Scout X3A S114 WI LA3 Reentry 2 Stg 3 late ignition FSO* 4/5/1963 Scout X-3 S119 PA LC-D Transit 5A-2 3rd stg peroxide leak, coast control lost FTO 4/26/1963 Scout X-2M S121 PA LC-D DSAP 1 F4 inadvertent destruct during 3rd stg burn FTO 7/20/1963 Scout X-3A S110 WI LA3 Reentry 3 Stg 1 nozzle rupture T+2.5s, 2 km apogee FSO* 9/27/1963 Scout X-2B S132 PA LC-D DSAP 1 F5 Stg 3 H2O2 overheated, cntrl lost (coast) FTO 6/25/1964 Scout X-4 S128R PA LC-D ESRS short ckt caused autodestruct @ 1/2 stging FTO 1/31/1967 Scout B S151C V SLC5 OV3-5 4th stg ruptured, 420s, no orbit FTO 5/30/1967 Scout B S152C V SLC5 ESRO 2A 3rd stg burnthru 201.5s FTO 3/5/1968 Scout B S160C WI LA3A Explorer 37 S1 thrust drop 32.8s, low perigee (LEO) 8/30/1974 Scout D-1 S189C V SLC5 ANS S1 pitch (timer), low orb, reenter 11/74 (LEO) 12/6/1975 Scout F-1 S196C V SLC5 DAD A/B Stg 3 nozzle failure, failed to orbit FTO ------------------------------------------------------------------------------------------------------------------ Footnotes: # FTO: Failed to Orbit FSO*: Failed Suborbital (EEO): Unintended Eliptical Earth Orbit (GTO): Unintended Geosynchronous Transfer Orbit (LEO): Unintended/Improper Low Earth Orbit "WI" = Wallops Island Launch Site, Virginia "PA" = Point Arguello, California (incorporated into Vandenberg Air Force Base as South Vandenberg mid-1966) "PA LC-D" = Point Arguello Launch Complex D (renamed Vandenberg Space Launch Complex 5 during mid-1966) "CC" = Cape Canaveral Air Force Station, Florida "V" = Vandenberg Air Force Base, California "RSO" = Range Safety Officer Scout Models Vehicle Stage 1 Stage 2 Stage 3 Stage 4 Stage 5 ----------------------------------------------------------------------------- Blue Scout I Algol 1B Castor 1A Antares 1A - - Blue Scout II Algol 1B Castor 1A Antares 1A Altair 1A - X Algol 1A Dummy Antares 1A Dummy - X-1 Algol 1B/C Castor 1A Antares 1A Altair 1A - X-1A Algol 1C Castor 1A Antares 1A Altair 1A NOTS-17 X-2 Algol 1C/D Castor 1A Antares 2A Altair 1A - X-2B Algol 1D Castor 1A Antares 2A Altair 2A - X-2M Algol 1D Castor 1A Antares 2A MG-18 - X-3 Algol 2A Castor 1A Antares 2A Altair 1A - X-4 Algol 2A/B Castor 1A Antares 2A Altair 2A - X-4A Algol 2B Castor 1A Antares 2A Altair 2A NOTS-17 X-5C Algol 2B Castor 1A Antares 2A - - A Algol 2B Castor 2A Antares 2A Altair 2A - A1 Algol 2C Castor 2A Antares 2A Altair 2A - B Algol 2B Castor 2A Antares 2A Altair 3 - B1 Algol 2C Castor 2A Antares 2B Altair 3 - D1 Algol 3A Castor 2A Antares 2A Altair 3 - E1 Algol 3A Castor 2A Antares 2B Altair 3 Alcyone 1A F1 Algol 3A Castor 2A Antares 2B Altair 3A - G1 Algol 3A Castor 2A Antares 3A Altair 3A - ------------------------------------------------------------------------------- References: Jonathan's Space Report Launch Vehicle Database "http://www.planet4589.org/space/lvdb/index.html" Encylopedia Astronautica "http://www.astronautix.com/" Gunter's Space Page "http://www.skyrocket.de/space" TRW Space Log 1957-1996, TRW Space & Electronics Group, Redondo Beach, CA. Last Update 02/15/2019 by Ed Kyle