RAIL TRANSPORTABILITY GUIDANCE
Blocking and Restraining Item on Railroad Flatcars With Wooden Floors
1.
BILL
OF
MATERIAL
a.
Lumber
Quantity
100 ft
2-in x 4-in
65 ft
2-in x 12-in
b.
Nails
220
20d (4-in)
30d (4-in)
170
100 ft
c. Rope, steel wire,
diameter
20
d. Clips, cable,
e. Thimbles, std,
open type
4
2.
MATERIAL
SPECIFICATIONS
a. Lumber: Douglas-fir
or
comparable
lumber
with
straight
grain
and
free
from
material
defects, Fed
Spec
MM-L-751.
b. Nails: C o m m o n ,
cement-coated,
Fed
Spec
FF-N-105.
c. Rope:
6x19, IWRC, steel cable, Fed Spec RR-W-410.
d. Clips: "U''-bolt,
Crosby,
heavy-duty,
or
equal.
3.
APPLICATION
OF
MATERIALS
and
6)
Application
Item
N o . Required
Brake wheel clearance. Six-inch clearance required in back of, on both sides
A
of, and above brake wheel, with 4 inches required below the wheel.
Block, track, front, right and left sides. Construct with 2-in. x 12-in. mate-
B
2
rial and 20d nails. See item B, figure 6. Locate the angle ends under the
right and left front tracks.
Block, track, rear, right and left sides. Construct with 2-in x 12-in material
2
C
and 20d nails. See item C, figure 6. Locate the angle ends under the
right and left rear tracks.
B l o c k , end cleats, each to consist of two pieces of 2-in
x
4-in
x
12-in. Locate
4
D
against ends of each item B and C. Nail the lower piece to the car floor
with four
30d nails, and the top piece to the one below in a like manner.
Block, side cleats, 2-in x 4-in x 20-in. Locate one piece on the inside and
8
E
outside of each item B and C. Nail each piece to the car floor with four
30d nails.
Track, side cleats, each to consist of two pieces of 2-in x 4-in x 144-in.
2
F
Locate along the inside of each track and nail the lower piece to the car
floor with sixteen 30d nails. Nail the top piece to the one below with
sixteen 30d nails.
Track, side cleat spreaders, each to consist of two pieces of 2-in x 4-in x
3
G
length to suit. Locate at each end and in center of item F. Nail the lower
AGO 7287A
