The Sikorsky HSS-1 Seabat, later redesignated the SH-34, was a rugged shipboard helicopter developed for the U.S. Navy during the 1950s, primarily for anti-submarine warfare. The Seabat used sonar and other specialized equipment to search for enemy submarines and could carry torpedoes or depth charges to attack them once detected. Its powerful radial engine, large cabin, and distinctive high-mounted cockpit also made the versatile H-34 family well suited for search and rescue, transport, and utility missions. Designed to operate from ships and shore bases, the Seabat helped demonstrate the growing importance of helicopters in protecting naval forces from underwater threats during the Cold War. With its unmistakable rounded fuselage and prominent nose-mounted engine, the H-34 Seabat represents an important generation of naval helicopters that helped pave the way for more advanced anti-submarine aircraft such as the SH-3 Sea King.