The PBR was an
extremely dangerous boat. It could be pivoted to reverse
direction, turned in its own length, or come
to a stop from full speed in a few boat lengths.
It could reach top speeds of 28.5 knots (53 km/h.)
And amazingly, it needed only two feet of water even
when fully loaded.
PBR was armed with twin .50 caliber (12.7
mm) machine guns (the forward '50s), an M60 7.62 mm
machine gun, a Mark 18 grenade launcher, and
sometimes a 20 mm cannon. The machine gunners and
conning tower were protected with ceramic armor.
PBR was used in the
Vietnam War from March 1966 until the end of 1970.
They were deployed in a force that grew to 140.
The main purpose of this well-engineered boat is to stop and search traffic in areas such as the
Mekong Delta for enemy's weapons