Roll-On/Roll-Off (RORO), Seatrain, and Attack Cargo Ships

TM 55-2320-289-14

30 January 1987

6-5. Roll-On/Roll-Off (RORO), Seatrain, and Attack Cargo Ships

NOTE

When CUCVs are loaded on vessels that are adequately ventilated by power blowers, such as

RORO vessels, fuel tanks can remain undrained and battery terminals connected.

a. Loading. The CUCVs can be loaded under their own power or towed aboard vessels with roll-on

capability.

b. Securing. RORO, seatrain, and attack cargo ships are equipped with patented lashing gear and pre-

positioned fittings on deck. The use of such equipment is adequate and blocking is not required. Figure 6-4

shows a typical tiedown of the CUCV on the RORO vessel with 10,000-pound-capacity lashings.

Table 6-1. Bill of Materials for Blocking and Tiedown of CUCV in General Cargo or Barge-Type Vessel (Fig 6-2)

Approximate Quantity

Item

Description

60 linear feet

Lumber

Douglas-fir, or comparable; straight-grain, free from material defects;

Fed Spec MM-L-751: 4- x 4-inch

Nails

Common, steel, flathead; bright or cement-coated; Fed Spec FF-N-105:

20d

50d

75 feet

Wire rope*

6 x 19, IWRC; improved plow steel; preformed, regular-lay; Fed Spec RR-

W-410: 3/8-inch

Clamps*

Wire rope, U-bolt clamps, saddled, single-grip, steel, Crosby heavy-duty,

or equal; MIL-STD-16842: 3/8-inch

Turnbuckles*

Eye- and jaw-type; 1/2-inch diameter x 6-inch takeup; Fed Spec FF-T-791,

or equal

Thimbles

Standard, open-type; 3/8-inch

* Not required for transport aboard general cargo and barge-type vessels if blocking is used.

Table 6-2. Application of Materials for Blocking and Tiedown of CUCV in General Cargo or Barge-Type Vessel (Fig 6-2)

Item

No. required

Application

Side blocks. Each consists of 4- x 4- x 238-inch lumber. Locate one piece against outside wheels on each side.

End blocks. Each consists of 4- x 4- x 64-inch lumber. Locate on top of item A and against wheels as shown

in figure 6-2. Nail to item A with four 50d nails at each end of item B.

Backup cleats. Each consists of 4- x 4- x 12-inch lumber. Locate on top of item A against the joint of each

item B. Toenail to each item A with four 20d nails.

Tiedowns. Each consists of one piece 3/8-inch, 6 x 19, IWRC wire rope, length as required (about 15 feet).

Form a complete loop through each truck tiedown provision and the eye of the turn-buckle, item F.

Overlap wire rope ends at least 18 inches.

Clamps. Place four on each wire rope at the overlap area, and space 2 1/2 inches apart and at least 6 inches

from ends of wire rope. Details for placement of clamps are shown in figure 5-3. Tighten so that wire rope

cannot slip.

Turnbuckles. Attach jaw end to padeye, stanchion, or bulkhead. Tighten as required.

Thimbles. Place one under wire rope at each place where rope passes through and around the object. Secure

each thimble to the wire rope with one 3/8-inch clip (ref detail 3, fig 6-2).

* Not required for transport aboard general cargo and barge-type vessles if blocking is used,

6-7