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Patrol Boat Riverine (PBR)

Shallow Draught Patrol Boat

Naval Warfare / Ships

The United States Marines and Army both made use of the excellent Vietnam War-era PBR.

Authored By: Staff Writer | Last Edited: 7/12/2018 | Content ©www.MilitaryFactory.com
One of the most intriguing of the United States Navy's crafts during the Vietnam War arguably was the PBR (or "Patrol Boat, Riverine" though also sometimes known as "Pibber"). The low-draft, high-speed river-borne craft was used for basic river patrol, river traffic searches and special forces insertion in an attempt to disrupt enemy riverine highways from supplies, ammunition and the like. The boat, the centerpiece for River Patrol Force, Task Force 116, could be fitted with a plethora of armament and was very effective in its intended role.

Design of the PBR centered around its propulsion of twin Detroit Diesel diesel engines which generated up to 220 horsepower. These engines drove twin Jacuzzi Brothers waterjets that allowed the PBR speeds in excess of 28 knots. The rigid hull was constructed of fiberglass and produced a shallow draft, allowing the PBR elements to traverse portions of the Delta where other Navy craft could not enter. Accommodations amounted to a standard load of four personnel with one usually consisting of an interpreter for dialogue and navigational purposes. Ceramic-based armor allowed for some protection for the cabin where three of the crew and their fellow passengers resided. A forth crewmember mounted the separated forward armament tub at the bow.

Armament consisted of a myriad of weapons combinations based on experience and practice. The forward bow turret was usually armed with twin 12.7mm (.50 caliber) M2HB Browning heavy machine guns. A pintle mounting amidships could hold a Mark 19 40mm grenade launcher or a single M60 7.62mm (.30 caliber) belt-fed machine gun. The rear pintle mounted (protected by ceramic shields) could mount a single 12.7mm or 7.62mm machine guns. Additional armament for the boat consisted of mortar launchers, 20mm cannons and flamethrowers, the latter of which produced impressive results against the straw and thatch structures found throughout the region. The standard armament of the PBR could also be augmented by whatever personal weapons were carried by the crew.

The PBR appeared in two marks known simply as Mark I and Mark II. The most differentiating feature between the two was that the Mark II series was fitted with a longer hull. The PBR plays a large role in the Hollywood motion picture Apocalypse Now. PBR's served the United States Navy up until 1995.


Decommissioned, Out-of-Service
4 Personnel
Ship Class [ PBR MK-S ]
Ships-in-Class [ 32 ] Ship Names: Not Applicable.
National flag of Brazil National flag of Cambodia National flag of Laos National flag of Panama National flag of South Vietnam National flag of Switzerland National flag of Thailand National flag of United States National flag of ; Vietnam Brazil; Cambodia; Laos; Panama; Thailand; South Vietnam; Switzerland; United States; Vietnam
- Blue Water Operations
- Fleet Support
- Hunter
- Direct-Attack
32 ft (9.75 m)
Width / Beam:
12 ft (3.66 m)
Height / Draught:
2 ft (0.61 m)
Displacement (Surface):
7 tons
2 x Detroit Diesel diesel engines developing 220 horsepower and driving 2 x Jacuzzi Brothers waterjets.
Speed (Surface):
28 kts (32 mph)
2 x 12.7mm Browning M2HB machine guns in forward tub turret position
1 x 40mm Mark 19 automatic grenade launcher on midship gun pintle mount
1 x 12.7mm Browning M2HB OR 7.62mm M60 machine gun on aft gun pintle mount

1 x 7.62mm machine gun on starboard pintle mount
1 x 7.62mm machine gun on port pintle mount
1 x 60mm mortar on midship mount
1 x 20mm cannon on midship mount
1 x flamethrower

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