Trumpy PTF-17 Patrol Torpedo Fast Boat

Trumpy PTF-17 Patrol Torpedo Fast Boat

CountryUSA
RoleNasty-class patrol boat
Entered service1967
BuiltUnknow

The Nasty class of fast patrol boats were a set of 20 vessels built for the United States Navy to a Norwegian design and purchased in the 1960s for covert operations during the Vietnam War. Following the conflict they remained in service until the early 1980s. PTF 17: 1967 by Trumpy (Stricken 1981)

Source: PTF-17 Patrol Torpedo on Wikipedia
Trumpy PTF-17 Patrol Torpedo Fast Boat Walk Around
PhotographerBill Maloney
LocalisationBuffalo and Erie County Naval & Military Park
Photos19
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See also:

World War II: The Definitive Visual History from Blitzkrieg to the Atom Bomb (DK Definitive Visual Histories) - Amazon World War II Map by Map (DK History Map by Map) - Amazon


General Characteristics and Role

The PTF-17 (Patrol Torpedo Fast) is a fast patrol boat of the Nasty-class, a design originally developed in Norway (where it was known as the Tjeld class) and acquired by the United States Navy in the 1960s. The PTF-17 was one of six Nasty-class boats built under license by John Trumpy & Sons, Inc. in Annapolis, Maryland. These boats were significantly larger and faster than the World War II era PT boats, and were heavily armed gunboats primarily intended for covert coastal and riverine operations during the Vietnam War as part of Operation 34A. Their high speed and agility were crucial for hit-and-run tactics against North Vietnamese coastal targets. PTF-17 is now preserved as a museum ship at the Buffalo and Erie County Naval & Military Park.

Property Typical Value (Nasty-class PTF)
Class & Type Nasty-class (Norwegian Tjeld-class) Fast Patrol Boat (PTF)
National Origin United States (Design: Norway)
Builder John Trumpy & Sons, Inc.
Commissioned 1968
Displacement 80–83 long tons (full load)
Length 24.49 m (80 ft 4 in)
Beam 7.49 m (24 ft 7 in)
Draft 1.17 m (3 ft 10 in)
Hull Construction Double-planked Mahogany
Complement (Crew) 17–18 men

Propulsion and Performance

  • Engines: 2 x Napier Deltic Turboblown V18 diesel engines.
  • Power Output (Total): Approximately 6,200 shp (4,623 kW).
  • Maximum Speed: 38–45 knots (70–83 km/h; 44–52 mph), depending on load.
  • Range: 1,050 nautical miles (1,940 km) at 20 knots.
  • Key Feature: The high power-to-weight ratio and unique diesel engine design allowed for exceptional speed, crucial for escaping enemy coastal defenses.

Armament and Vietnam War Role

  • Primary Armament: The PTFs were typically heavily armed gunboats, with torpedo tubes often omitted or removed for heavier guns and unique weapons.
  • Typical Gun Armament: 1 x Bofors 40 mm anti-aircraft gun (aft) and 2 x 20 mm Oerlikon cannon (amidships).
  • Secondary Armament: Often included a “Piggyback” 81 mm mortar/0.50 caliber machine gun mount forward, and sometimes captured Soviet rockets or recoilless rifles were jury-rigged for combat missions.
  • Role: Used primarily by Navy Special Warfare forces for landing operations, intelligence gathering, and hit-and-run raids along the North Vietnamese coast.

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