SMY21 USS CANOPUS (AS 9) Blt 1919-21 NY Sbdg. for US Shipping Board; 11.21 USN, converted to AS 9; displ 7750 tons; 373.66 x51.5 x21.5 ft; Recip SHP 3850=3850=13kts; 2x5"/51 + 4x3"/50.  Commissioned 24.1.24; served Boston & Coco Solo, Panama CZ; San Pedro, Cal. and Pearl Harbor (BattleFlt).  4.11.24 arrived Philippines (Asiatic Fleet).  7-8.12.41 Cavite Navy Yd.  Subron 20 tender; 8-25.12.41 repairing bomb damaged ships, 25.12.41 sailed Marviales Bay, Bataan; 29.12.41 & 1.1.42 hit by Japanese bombs.  Disguised as abandoned hulk, but repair work for Army and Navy continued at night.  CANOPUS' launches fitted as gunboats and crew formed a naval battalion (white uniforms dyed khaki with coffee grounds).  9-10.4.42 Bataan fell, CANOPUS scuttled in deep water.