H10790/98-- OPR-E346-AHP; 200% SIDE SCAN SONAR LOCATED CONTACT WITH AN APPARENT HEIGHT OF 2.3 METERS IN SURROUNDING DEPTHS OF 57-58 FEET. ECHO-SOUNDER DEVELOPMENT WITH 5-METER LINE SPACING OBTAINED A LD OF 50 FEET (15.3 METERS) IN LAT. 38-46-57.09N, LONG