IBM 729 the tape reel. A 3/4 inch gap between records allowed the mechanism enough time to stop the tape. Initial tape speed was 75 inches per second (2.95 m/s) and recording density was 200 characters per inch, giving a transfer speed of 120 kbit/s. Later 729 models supported 556 and 800 characters/inch (transfer speed 480 kbit/s). At 200 characters per inch, a single 2400 foot tape could store the equivalent of some 50,000 punched cards (about 4,000,000 six-bit bytes, or 3 MByte). The 729 series was superseded by 9 track tape drives introduced with the IBM System/360. The IBM 729 I
USS Apache (SP-729) June 1917. She was commissioned as USS "Apache" (SP-729) at Boston on 7 July 1917. "Apache" served as a dispatch boat and local patrol boat at Boston, operating under the aegis of the 1st Naval District, through early October 1918, by which time her name had been changed to USS "SP-729". Due to an urgent need for craft such as "SP-729" at Brest, France, an order dated 14 October 1918 went out from Washington, D.C., to Boston, directing the Commandant of the 1st Naval District to ready six section patrol boats -- USS "Commodore" (SP-1425), USS "Cossack" (SP-695), USS "War