Patrol Craft Fast

	PCF-32 on patrol.
Class overview
Name	PCF (Patrol Craft Fast)
Builders	Sewart Seacraft (now Swiftships)
Operators	See Operators
Completed	193
Preserved	6
General characteristics
Type	Riverine patrol boat
Length	50 ft (15 m) (Mk I); 51 ft (16 m) (Mk II); 94.5 ft (28.8 m) (Osprey-Class);
Beam	13 ft (4.0 m)
Draft	3 ft (0.91 m)
Propulsion	2x General Motors 12V71"N" Detroit marine diesels
Speed	32 knots (59 km/h; 37 mph) (Mk I)
Armament	2x 0.50 caliber machine gun (top) (US-based) ; 1x 81mm mortar (US-based); 1x Mk 19 (US-based); 1x NSV (Vietnamese-based); 1x DsHK (Vietnamese-based); 1x AGS-17 (Vietnamese-based) ;
Armor	Quarter inch thick aluminum hull

The Patrol Craft Fast (PCF), also known as Swift Boat, were all-aluminum, 50-foot (15 m) long, shallow-draft vessels operated by the United States Navy, initially to patrol the coastal areas and later for work in the interior waterways as part of the brown-water navy to interdict Vietcong movement of arms and munitions, transport South Vietnamese forces and insert SEAL teams for counterinsurgency (COIN) operations during the Vietnam War.

Class overview
PCF-32 on patrol.
Name	PCF (Patrol Craft Fast)
Builders	Sewart Seacraft (now Swiftships)
Operators	See Operators
Completed	193
Preserved	6
General characteristics
Type	Riverine patrol boat
Length	50 ft (15 m) (Mk I) 51 ft (16 m) (Mk II) 94.5 ft (28.8 m) (Osprey-Class)
Beam	13 ft (4.0 m)
Draft	3 ft (0.91 m)
Propulsion	2x General Motors 12V71"N" Detroit marine diesels
Speed	32 knots (59 km/h; 37 mph) (Mk I)
Armament	2x 0.50 caliber machine gun (top) (US-based) 1x 81mm mortar (US-based) 1x Mk 19 (US-based) 1x NSV (Vietnamese-based) 1x DsHK (Vietnamese-based) 1x AGS-17 (Vietnamese-based)
Armor	Quarter inch thick aluminum hull