Table 61. Bill of Materials Blocking and Tiedown of Mine Dispenser in General- cargo vessel

TM 55-1095-205-14

Table 61. Bill of Materials Blocking and Tiedown of Mine Dispenser in General-

Cargo Vessel (Fig 62)

Approximate

quantity

Description

Item

Douglas-fir, or comparable, straight-grain, free

Lumber

from material defects; Fed Spec MM-L751 H:

4 linear ft

2- x 4-in.

38 linear ft

4- x 4-in

1 linear ft

2- x 12-in.

Common, steel; flathead, bright or cement coated;

Nails

Fed Spec FF-N105B:

20d

50d

80 ft

6 x 19, IWRC; improved plow steel; preformed, reg-

Wire rope

ular-lay; Fed Spec RRW-410C: 5/8-in.

Wire rope, U-bolt clips, saddled, single grip, steel,

Clips

Crosby heavy-duty or equal: MILSTD 16842: 5/8-

in.

Eye-and-jaw type, l-in. dia x 12-in. takeup; Fed

Turnbuckle

Spec FFT791b or equal

Table 62. Application of" Materials for Blocking and

mine dispensers should be loaded symmetrically

Tiedown of Mine Dispenser in General-Cargo Vessel

in sequence about the centerline of the barge in

(Fig 6-2)

a manner to counterbalance variations in centers

of gravity, that is, alternate head to tail.

Application

Item

No. required

Side blocks. Each to consist of 4- x 4- x

108-in. lumber. Locate one piece cen-

tered against outside of each pair of

6-6. Roll-on/Roll-off (RORO), Seatrain,

wheels.

Landing, and Attack Cargo Ships

End blocks. Each to consist of 4- x 4- x

108-in. lumber. Locate on top of item

NOTE

A and against wheels as shown in fig-

When mine dispensers are loaded on vessels that

ure 62. Toenail to item A with four

are adequately ventilated by power blowers, such

50d nails at each end of each item B.

as RORO vessels, the fuel need not be drained and

Backup cleats. Each to consist of one

batteries need not be disconnected.

piece of 2- x 4- x 12-in. lumber. Locate

on top of item A against the joint of

a. Loading. Mine dispensers, in operational con-

each item B. Nail to item A with four

figuration, can be towed by their prime movers

20d nails each.

aboard vessels having roll-on capability.

Wire rope. Form a complete loop through

b. Securing. RORO, Seatrain, landing, and at-

each mine dispenser tiedown provision

and the eye of a turn buckle. Overlap

tack cargo ships are equipped with patented lash-

wire rope ends at least 18 inches.

ing gear and pre-positioned fittings in the deck.

Clips. Place four on each wire rope at the

The use of such equipment is adequate, and block-

overlap area, and space 3 inches

ing and bracing are not required. Figure 6-3

apart, a minimum of 6 inches from ends

shows suggested tiedown details for a mine dis-

of wire rope. Details for placement of

clips may be found in figure 5-2. Tighten

penser aboard a RORO vessel, using four 35,000-

so that wire rope cannot slip.

pound-capacity (M35) lashings.

Turnbuckles. Attach jaw end to padeye

built into vessel deck. Tighten as re-

quired.

Brace. Consists of one piece of 2- x 12- x

6-7. Landing Craft and Amphibians

12-in. lumber and one piece of 4- x 4-in.

lumber, length cut-to-fit. Place 2- x 12-

When transporting the mine dispensers for ex-

x 12-in. piece on vessel deck, under

tended distances or through rough waters, block-

reach tube, aft of the lunette. Force fit

the 4- x 4-in. cut-to-fit piece between

ing and tiedowns must be used. In most cases,

the 2- x 12- x 12-in. piece and the bot-

landing craft and amphibians are equipped with

tom of the reach tube aft of the lunette.

lashings and deck fittings. When lashing are not

Toenail with four 20d nails.

provided, a suitable substitute may be used.

6-5