Table 6-1 Bill of Materials for Tiedown of LACV-30 on Deck of Break-Bulk Ship (fig 6-2)

TM 55-1930-218-14

b. Loading aboard SEABEE vessels requires special handling. An adapter frame furnished by the ship is modified

to accept the LACV-30 landing pads. The modified adapter is placed on the SEABEE elevator and submerged. The

LACV-30 is floated into the elevator well and over the adapter. The elevator is slowly raised, and a diver assists in

proper positioning of the LACV-30 landing pads on the adapter. The elevator is then raised to the upper deck, and the

modified adapter and LACV-30 are moved to their designated storage site by the SEABEE transporter.

It appears that the LACV-30 can also be deck loaded on LASH and RORO vessels using methods similar to

those employed on a break-bulk vessel. Special-purpose ships such as these are equipped with patented lashing gear.

Table 6-1 Bill of Materials for Tiedown of LACV-30 on Deck of Break-Bulk Ship (fig 6-2)

Approximate

Item

Description

quantity

Lumber

Douglas fir, or comparable, straight grain, free from material defects; Fed Spec MM-L-751H:

2- x 4-inch

12 linear ft

Wute rope

6x19 IWRC; improved plow steel; preferred, regular-lay; table X, Fed Spec RR-W-410C: 5/8-

240 ft

inch

Clamps

Wire rope, U-bolt clips, saddled, single-grip, steel, Crosby heavy-duty, or equal; MIL-

STD16841: 5/8-inch

Turnbuckles

Bye-and-hook, 3/4-inch eye, 18-inch take-up

Table 6-2. Application of MatertaIs for Blocking and Tfedown of LACV-30 on Deck of Break-Bulk Ship (Fig 6-2)

Item

No. Required

Application

Lumber, 2- x 4- x 12-inch. Position under wire rope (item B) as shown in figure 6-2 to protect

edge of LACV-30 deck.

Wire rope, 5/8-inch. Locate as shown in figure 6-2. Form loops from the tiedown points on the

LACV-30 through the eye of the turnbuckle. Attach the turnbuckle hook to the appropriate deck

padeye.

Clamp, 5/8-inch. Secure the ends of the wire rope at the overlap area with four clamps spaced

3-1/2 inches apart, leaving a minimum of 6 inches from ends of rope.

Turnbuckle. Use to tighten and maintain tension on tiedowns

6-3