Patrol Boat, River

	Preserved PBR 829 in Kenner, Louisiana.
Class overview
Name	PBR (Patrol Boat, River)
Operators	See Operators
Cost	$400,000
Completed	718
Preserved	1 operational
General characteristics
Type	Riverine patrol boat
Displacement	8.9 ton for Mk II
Length	31 ft (9.4 m) (Mk I); 32 ft (9.8 m) (Mk II);
Beam	10.5 ft (3.2 m) (MK I); 11.5 ft (3.5 m) (MK II);
Draft	2 ft (0.61 m)
Propulsion	2 × 180 hp (130 kW) Detroit Diesel 6V53N engines each driving a Jacuzzi Brothers 14YJ water pump-jet with thrust buckets for reverse thrust.
Speed	28.5 knots (52.8 km/h; 32.8 mph).
Complement	4 enlisted
Armament	1 × twin .50 caliber (12.7 mm) M2HB Browning machine guns (forward in a rotating tub); 1 × single M2HB (rear); 1 or 2 × 7.62 mm M60 machine gun(s) (side-mounted); 1 × 40 mm Mk 18 grenade launcher;
Armor	Ceramic armor shields fitted to guns, bridge. Also crew-applied ballistic blankets to protect the coxswain in the control cockpit.

Patrol Boat, River, or PBR, is the United States Navy designation for a small rigid-hulled patrol boat used in the Vietnam War from March 1966 until 1975. They were deployed in a force that grew to 250 boats, the most common craft in the River Patrol Force, Task Force 116, and were used to stop and search river traffic in areas such as the Mekong Delta, the Rung Sat Special Zone, the Saigon River and in I Corps, in the area assigned to Task Force Clearwater, in an attempt to disrupt weapons shipments. In this role, they frequently became involved in firefights with enemy soldiers on boats and on the shore, were used to insert and extract Navy SEAL teams, and were employed by the United States Army's 458th Transportation Company, known as the 458th Sea Tigers.

The PBR was replaced by the Special Operations Craft – Riverine (SOC-R).