Table 6-2. Application of Materials for Blocking and Tiedown of an M9 ACE in the Hold of a General Cargo Vessel (Fig 6-2)

TM55-2350-262-14 Table 6-1. Bill of Materials for Blocking and Tiedown of an M9 ACE in the Hold of a General Cargo Vessel Approximate Item Description Quantity Lumber Douglas-fir, or comparable, straight grain, free from material defects; Fed 65 linear feet Spec MM-L-751H: 4- x 6-inch Nails Common, steel; flathead, bright or cement-coated; para 3.6.11.2, Fed Spec 60 FF-N-105B: 20D 40 60d Wire rope Type I, general purpose; class 2, 6 x 19, improved plow steel, wire strand care 100 feet or IWRC: Fed Spec RR-W-410: 5/8-inch Clamps Wire rope, U-bolt clips, saddled, single-grip, forged steel, Crosby heavy-duty, 16 or equal; Fed Spec FF-C-450D: 5/8-inch Table 6-2. Application of Materials for Blocking and Tiedown of an M9 ACE in the Hold of a General Cargo Vessel (Fig 6-2) Item No. Required Application A 2 Side blocking. Each consists of one piece of 4- x 6-inch x length-cut-to-fit lumber. Place one piece on each side of vehicle against vehicle treads. B 2 End Mocking. Each consists of one piece of 4- x 6-inch x length-cut-to-fit lumber. Place on top of item A, against vehicle treads. Toenail to item A. C 4 Backup cleats, 4- x 6- x 12-inch lumber. Place on top of item A, against item B. Toenail to item A. D 4 Cleats, 4 x 6- x 24-inch lumber. Place against item A and secure to side blocking with ten 20d nails. E 4 Wire rope, 5/8-inch. Run each cable, in a complete loop, through vehicle tiedown shackle and deck padeye. Ensure sufficient overlap for clamps. F 16 Clamps, 5/8-inch. Place four clamps over each cable loop overlap area and space 3-1/2 inches apart with a minimum of 6 inches from ends of cable. e. Special Design. Seatrain trailer vessels, RORO vessels, landing ships, and attack cargo vessels are equipped with patented lashing gear and pre-positioned fittings in the deck. This on- board restraint equipment is considered adequate for the M9 ACE, and no further blocking or bracing is required. 6-5. Barges and Lighters When the M9 ACE is moved by barge or similar lighterage to or from vessels secured to piers or at a sheltered anchorage, blocking and chocking ma- terials will be required. When the M9 ACE is moved for extended distances or through rough waters, tiedown restraints must also be used. 6-6. Landing Ships, Landing Craft, and Amphibious Vehicles When the vehicle is moved for extended distances or through rough waters, blocking and tiedowns must be used. In most cases, the vessels are equipped with turnbuckles with a sheep’s foot on one end that fits into a deck cloverleaf. If these materials are not provided, a suitable substitute may be used. 6-4