The ST520 can sail across with highest speed in registering 3 the Beaufore
scale. It can bear in registering 5 on the Beaufore scale.
The
ST520 is operated in the 0.7meters depth of the river and moor in the
0.35meters depth. When necessary It can fling to land.
The ST520 is designed as
versatile and fast operating platform for coast, river and lake services
such as search and rescue and general transportation.
The ST520 can not be sunk
when all the holds are submerged by water due to injecting full of Polyurethane
Foam in the middle of two layers of bottoms and two broadsides.
ST520 is designed have
a opening-fore bridge and large floor so that convenience to rescue
and carry goods.The opening-fore bridge can be opened
by carb winch. It is convenience to pull victims in boat.