TM 5-850-1
f. Letro-Porter 2582 (front-loading forklift). This
construction requirements usually greatly exceed the
vehicle (fig. 6) is capable of operating on most sandy y
capabilities of available engineer units. Until critically
beaches; its articulated body also enhances its ability to
needed facilities such as airfields become operational,
operate on unsurfaced soils.
g. Lancer 3500 (side-loading forklift). The lacer
all construction must be kept as austere as possible.
The use of expedient surfaces such as landing mats is
3500 (fig. B-7) can handle 30-long-ton container Ioads.
appropriate at this stage of the logistics support
It can transport these containers at 25 miles per hour
operation. The type of mat employed must be capable
and stack the containers two high or load them on
of withstanding sustained container handling operations
railroad cam.
h. Travelift CH 1150 (yard gantry). This yard
over a several-month period without a major
maintenance effort. After the demand for engineer
gantry (fig. B-8) has the ability to span six traffic lanes
troop units become less critical and sources of
and is equipped with two large tires o each leg that
aggregate have been developed, the mat can be
distribute the load imposed by the weight of the gantry.
replaced with either flexible or rigid pavement.
individual containers do not exert highly concentrated
loads when stacked on the ground. These of this
B-3. Container handling vehicles.
vehicle would allow five rows of containers to be
stacked and require only two treadways and one 10foot
Efficient handling of large containers requires special
traffic lane to be surfaced. It was flit that a yard gentry
equipment.
The minor categories of equipment
of this size will permit the greatest concentration of
currently being manufactured and capable of handling a
containers for the least construction effort.
i. P&H 6250-TC (mobile crane). This large mobile
container weighing 30 long tons are the forklift (front and
side loading), straddle carrier, yard gantry, mobile crape,
crane (fig. B-9) offers a quick solution to the problem of
and tractor-trailer combination. Representative vehicles
converting existing DeLong piers into container handling
of each major category are distanced herein.
facilities. Of the four large-capacity truck cranes
suitable for container discharge, the P&H 6250 truck
known as BARC, has the ability to operate on low-
crane is the only one that has wide usage in commercial
strength soils at a gross weight of 319,000 pounds
operations at this time.
j. LeTro Crane GC-500 (mobile gantry crane).
(120,000-pound pay-load). The LARC LX is capable of
lightering 40-foot containers, which can be discharged
The portal lower works of this crane (fig. B-10) permits
from the LARC by crane, narrow straddle carriers, or
operation on the deck of a DeLong barge while traffic
rollers similar to those used in unloading cargo aircraft.
passes beneath it. It is reported to be capable of
b. Shoremaster (straddle carrier). The
handling up to 20 containers per hour.
Shoremaster (fig B-2) is constructed in such a manner
as to distribute the load evenly on eight wheels with a
is capable of handling a 20-foot container. However, it
maximum single-wheel load of 16,500 pounds at a rated
doe. not appear to be capable of handling a fully
gross weight of 132,000 pounds. This vehicle is also
loaded 40-foot commercial container.
narrow enough (13 feet 3 inches) to negotiate the ramps
B-4. Soil strength and thickness requirements for
of a LARC LX (13 feet 8 inches), an LCM (Landing Craft
vehicle operation.
Medium)-VI (14 feet 6 inches), or a 1610 Class LCU
(Landing Craft Utility) (14 feet) and has a minimum
a. Unsurfaced soils. Strength and thickness
overhead clearance of 14 feet.
requirements for Unsurfaced soils can be determined
3) is widely used in commercial shipping. Its width of 13
through the us of the nomograph shown in figure B-12
feet 6 inches allows it to enter the ramp opening of the
and the following equation:
LCM-VIII and the 1610 Class LCU.
d. Belotti B67b (straddle carrier). The Belotti B67b
board its basic frame. This allows it to stack 20-foot
where
containers three high as well as to load them aboard rail
t=
thickness of strengthening layer, inches
cars. Containers longer than 20 feet can be stacked
C=
traffic volume, coverages
only two high because they extend beyond the end
P=
single- or equivalent single-wheel load
frame members and cannot be shifted to the side.
(ESWL), pounds
weight is distributed primarily on four front tires having
single-wheel loads of 32,600 pounds at a gross vehicle
weight of 140,710 pounds.
B-2
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