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 The 729 series was superseded by 9 track tape drives introduced with the IBM System/360.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) United States Shipping Board on 18 March 1925 for disposal. USS Apache (SP-729) The third USS "Apache" (SP-729), later USS "SP-729", was an armed motorboat that served in the United States Navy as a patrol vessel from 1917 to 1919. "Apache" was built in 1917 by Herreshoff Manufacturing Company at Bristol, Rhode Island, as the civilian motorboat "Herreshoff No. 311" for Robert F. Herrick of Boston, Massachusetts, who named her "Apache" and intended to offer her to the U.S. Navy for use as a patrol vessel during World War I. The U.S. Navy acquired her from Herrick on 23 May