USS Impetuous (PYc-46)

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Name: USS Sybilla III
Builder: Robert Jacob Inc., City Island, New York City
Launched: 1915
Acquired: May 1917
Commissioned: 14 May 1917
Decommissioned: 1918
Struck: 24 December 1918
Fate: Returned to owner
Name: USS PC-454
Acquired: 12 August 1940
Commissioned: 16 October 1940
Decommissioned: 27 September 1944
Renamed: Impetuous, 15 July 1943
Reclassified: PYc-16, 15 July 1943
Struck: 14 October 1944
Fate: Sold, 14 June 1945
General characteristics as USS Sybillia III
Tonnage: 103 long tons (105 t)
Length: 120 ft (37 m)
Beam: 14 ft 6 in (4.42 m)
Draft: 4 ft 8 in (1.42 m)
Propulsion: Diesel, two shafts
Speed: 15 knots (28 km/h; 17 mph)
Complement: 9
Armament: • 1 × 3-pounder gun
• 1 × 1-pounder gun
• 1 × machine gun
General characteristics as USS Impetuous
Displacement: 140 long tons (142 t)
Length: 121 ft (37 m)
Beam: 14 ft 5 in (4.39 m)
Draft: 6 ft (1.8 m)
Speed: 16 knots (30 km/h; 18 mph)
Armament: 6 × .30 caliber machine guns

USS Impetuous (PYc-46) was private yacht that served as a patrol boat of the United States Navy in both World War I and World War II under different names.

Service history

World War I, 1917–1918

She was built in 1915 by Robert Jacob Inc., City Island, New York City as the yacht Paragon. She was then renamed Sybilla III sometime before she was acquired and commissioned into the Navy on 14 May 1917 as USS Sybilla III (SP-104). She was returned to the owner and struck from the Naval Vessel Register (NVR) on 24 December 1918. In the intra-war years she was renamed Arlis.

World War II, 1940–1945

She was again acquired by the Navy on 12 August 1940, and commissioned on 16 October as USS PC-454. Assigned to the 15th Naval District, PC-454 arrived in the Canal Zone in mid-November 1940 to patrol the approaches to the Panama Canal. From November 1940 to August 1944, she performed escort and patrol operations off Central America while on constant watch for submarines.

PC-454 was named and reclassified USS Impetuous (PYc-46) on 15 July 1943. On 31 August 1944, the patrol yacht arrived in Philadelphia and was decommissioned there on 27 September, struck from the Naval Register on 14 October and sold by the War Shipping Administration on 14 June 1945.


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