Submarine Sound Signal. Navigational warning made by light vessel or other craft, that is transmitted through water instead of air; thus greatly increasing range and audibility. Two types in common use are submarine bells and oscillators, ranges being 15 and 50 miles respectively.
Submerged Log. Speed and distance log that protrudes from bottom of ship. The Chernikeef and Pitometer logs are examples.
Subsolar Point. That point on Earth that is vertically beneath Sun. Sun's geographical position.
Subrogation. The transfer of all rights and remedies of an assured party, who has suffered a loss, to a party who has indemnified him for the loss. The indemnifier then has all rights and remedies that were previously held by the assured party.
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