American intervention 1965 1966 1967 Tet Offensive and aftermath Vietnamization 1969–1971 1972 Post-Paris Peace Accords (1973–1974) Spring 1975 Air operations Naval operations Lists of allied operations PTF boat, (short for Patrol Torpedo, Fast) are fast United States Navy patrol boats introduced in the early part of the Vietnam War.

[5][6][8] Due to the immediate need for fast attack river craft, the US Navy looked at boats already in service with other nations.

The Royal Norwegian Navy had built HNoMS Nasty, a prototype boat, in 1958 by Westermoen Båtbyggeri in Mandal, Norway.

Båtbyggeri licensed John Trumpy & Sons in Annapolis, Maryland to built seven Nasty-class boats in 1968 and 1970.

Sewart Seacraft (Swiftships) in Berwick, Louisiana build four PTF boats of the Osprey class in 1968.

In December 1965, the US Navy started Operation Game Warden, in which PTF and PCF boats patrolled the major rivers and canals in the Mekong Delta and Rung Sat Special Zone.

[11][12][13] Most US Navy crews and United States Marine Corps underwent PTF training at the Naval Amphibious Base Coronado.

CSS also founded two camps: Phoenix va DoDo at Cu Lao Cham (Paradise Island).

In 1965, Boat Support Squadron One started training PFT and PCF crews for Vietnamese coastal patrol and interdiction operations.

PFT noted raids were on Đồng Hới, Yên Phú and Sầm Sơn radar sites, Phuc Loi, and Tiger Island.

Both boats a top speed of over 40 knots (74 km/h; 46 mph) from the four 2,500-horsepower (1,900 kW) Packard W-100 gasoline engines with shafts.

Power is derived from two Napier Deltic Turboblown diesel engines with total of 6,200 brake horsepower (4,600 kW) and a top speed of 38 knots (70 km/h; 44 mph).

[4][19][20] John Trumpy & Sons of Annapolis, Maryland built six Nasty-class patrol boats: PTF-17 to PTF-21, under license from Båtservice.

The book describes the special forces operations carried out by the CIA in the early days of the Vietnam War.

[33][34] Sean Tierney was one of the first US Navy personnel to serve on PTF boats at Da Nang in 1965 and 1966.

He authored the book, Out Over Blue Water released on August 15, 2022, about his time on PTF boats and in the US Navy.

[36][37][38][39] He made film of his time in San Diego Bay at Naval Amphibious Base Coronado.

[43] Men in Green Faces is a book released on January 1, 1992, written by Gene Wentz, a Vietnam veteran, and B. Abell Jurus.

In the book a US Navy SEAL team hunts for a North Vietnam Army general, the "enforcer", Colonel Nguyen, behind enemy lines.