The USS Specter was an American Admirable Class minesweeper of 625 tons displacement launched in 1944. The USS Specter was powered by diesel engines providing a top speed of 14.5 knots and carried a complement of 104. She was armed with one 3 inch dual-purpose gun and four 40 mm anti-aircraft guns. Found on http://www.probertencyclopaedia.com/browse/RSA.HTM