  LNM3/78-- (1/17/78); CHESAPEAKE CHANNEL - AID TEMPORARILY ESTABLISHED; CHESAPEAKE CHANNEL LIGHTED BUOY WR63 (LLNR 2741.43), BLACK, QK FL G, RAREF, RANGE 3 MILES, TEMPORARILY ESTABLISHED IN 47 FEET, 33 YARDS, 070 DEG T. FROM SUBMERGED WRECK. LEAST DEPTH