Historical clue formulations

• Rank below capt. — 2011-12-04
• Title for Sulu on "Star Trek": Abbr. — 2011-08-03
• Second in cmd. — 2011-04-30
• Rank achieved by 49-Across: Abbr. — 2011-03-26
• Capt.'s inferior — 2010-10-06
• Kojak's rank: Abbr. — 2009-12-02
• Fuzz of "Beetle Bailey," e.g.: Abbr. — 2008-05-28
• Capt.'s inferior — 2002-01-20
• Capt.'s inferior — 1999-10-03
• Kind of col. or cmdr. — 1998-07-24