Appendix I. RAIL TRANSPORTABILITY GUIDANCE

APPENDIX I

RAIL TRANSPORTABILITY GUIDANCE

Blocking and Restraining Item on Railroad Flatcars

With Wooden Floors

1. Bill of Material

Type of Material

Approximate Quantity

Lumber

2- x 4-in.

54 linear ft

2- x 6-in.

18 linear ft

& x 8-in.

15 linear ft

b. Nails

12d

20d

40d

c. Wire

No. 8 gage, black annealed-finish

300 ft (item E)*

300 ft (item F)

d. Wire-Rope

/2-in.-dia

100 ft

e. Clamps

Wire-rope, /2-in.

j. Thimbles

8**

Std, /2-in. open-type

g. Waterproof Paper or Burlap

As required

2. Material Specifications

a. Lumber

Douglas-fir or comparable lumber with straight grain and free from material defects, fed spec

MM-L-751c.

b. Nails

Common or cement-coated, fed spec FF-N-105a

c. Wire

No. 8 gage, black annealed-finish, fed spec QQ-W-461

d. Wire-Rope and Strand

/2-in., 6x19, IWRC, improved plow steel, preformed, regular-lay, fed spec RR-W-410a

e. Clamps

Wire-rope, saddled, single grip, steel, MIL-STD 16842

3. Application of Materials

(figs. 5,6, and 7)

Application

No. of Pieces

Item

A . . . . . . . . . . . . . . Brake wheel clearance. Minimum clearance required is 6 in. above, in back of,

and on both sides of, and 4 in. underneath wheel.

Block (sketch 1, fig 6), 6- x 8- x 24-in. Locate 45" portion of block against front

and rear of front wheels, in front of inside and outside intermediate wheels,

and in back of inside and outside rear wheels. Nail heel of the block to the

car floor with three 40d nails and toenail that portion of the block under the

tire to the car floor with two 40d nails before items C and D are applied.

Not required if 1/2-in. wire-rope is used for item E.

Not required if No. 8 gage wire is used for item F.