TM 55-1945-205-24-4
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UNIT, DIRECT SUPPORT AND GENERAL SUPPORT MAINTENANCE
FLOATING CAUSEWAY
THEORY OF OPERATION
SYSTEM OPERATION
The Floating Causeway (FC) is a floating platform used during Logistics Over The Shore (LOTS) operations. The FC
consists of three major sections; trident pierhead extension, trident pierhead, and causeway. Each major section
consists of non-powered floating modules that are assembled into module strings and intermediate sections connected
together using the Navy flexor and shear connector system which forms a hinge joint between them. The width of the
FC is 120 ft at the widest point which is the trident pierhead. The length of the FC depends on how far the causeway
must be extended from the beach to give the required water depth for LOTS operations. The FC is held in place
during LOTS operations by the Floating Causeway Anchor Mooring System (FCAMS). The structure of the FC will
withstand cargo loading and unloading through Sea State 2 conditions.
TRIDENT PIERHEAD EXTENSION
The trident pierhead extension is a floating platform for loading and unloading ocean-going sealift vessels. The
trident pierhead extension consists of 10 module strings, two segments of five wide connected end to end. The overall
dimensions of the trident pierhead extension is 160 ft long by 40 ft wide. The trident pierhead extension connects to
the trident pierhead for loading and unloading. The trident pierhead extension will withstand cargo loading through
Sea State 2 conditions.
TRIDENT PIERHEAD
The trident pierhead is a floating platform for loading and unloading ocean-going sealift vessels. The trident pierhead
consists of 10 intermediate modular sections. The intermediate modular sections are assembled by connecting two
segments of five wide. The overall dimensions of the trident pierhead is 160 ft long by 120 ft wide. The trident
pierhead is connected between the trident pierhead extension and the causeway for loading and unloading. The trident
pierhead will withstand cargo loading through Sea State 2 conditions.
CAUSEWAY
The causeway is a floating platform for loading and unloading ocean-going sealift vessels. The causeway consists of
one or more intermediate sections connected length wise, with one end connected to the trident pierhead and the other
end connected to a combination beach/sea end section. The causeway is connected between the trident pierhead and
the beach for loading and unloading. The overall dimension is determined by adding the total length of intermediate
sections to the length of the combination beach/sea end section configuration and the width is 24 ft. The causeway
length depends on how far offshore the causeway must extend to give the required water depth. The causeway will
withstand cargo loading through Sea State 2 conditions.
FORCE OPENING FLOATING CAUSEWAY
The force opening floating causeway is an administrative pier used to get to fifteen feet of water depth. The causeway
is a floating platform for loading and unloading ocean-going sealift vessels. The causeway consists of one or more
intermediate sections connected length wise and connected to a combination beach/sea end section. The causeway
length depends on how far offshore the causeway must extend to give the required water depth. The force opening
floating causeway does not use a trident pierhead. The force opening floating causeway operating conditions are: Sea
State 2 with five foot waves and a current of two knots.
10 KW 0R 15 KW SKID MOUNTED TACTICAL QUIET GENERATOR
Refer to TM 9-6115-642-10 for the theory of operation of the 10 KW diesel generator set.
Refer to TM 9-6115-643-10 for the theory of operation of the 15 KW diesel generator set.
