TM 55-2320-260-15-1
R A I L TRANSPORTABILITY G U I D A N C E
Section
I.
GENERAL
7-1. Scope
and unload the vehicles.
This chapter provides rail transportability guidance
7-2. Maximum Utilization of Railcars
for movement of the M809-series trucks. It covers sig-
Additional cargo, as approved by the activity offering
n i f i c a n t technical and physical characteristics an-d
the trucks for transport, may be transported with the
s a f e t y considerations; prescribes the materials; and
vehicles.
provides guidance required to prepare, load, tie down,
Section
Il.
TRANSPORT
ON
CONUS
RAILWAYS
Preparation
of
Vehicles
General
The degree of preparation for the vehicles before being
The transportability guidance contained in this section
transported by railcar is dependent upon the opera-
i s applicable when the trucks are transported on
tional commitment.
CONUS railways. Consideration is given to single and
multiple movements on the types of railcars normally
used for the movement of these vehicles. The trucks,
Loading
M809-Series
Trucks
on
Gener-
when loaded on suitable railcars, can be transported
al-Purpose
Flatcars
without sectionalization or major disassembly, except
a. The trucks may be placed in the tiedown position
f o r the M820, which has a nonreducible height of
on the railcar by a crane, or they may be driven or
135.1 inches. The M820 must receive special routing
towed provided a suitable ramp or bridge is available.
and/or restricted movement. The other trucks, when at
t h e i r respective reduced heights, are transportable
on flatcar minimum
width of 9 feet 6 inches, except
within the Association of American Railroads' Outline
for the M821, which
requires a car width of 10 feet 6
Diagram for Single Loads, Without End Overhang, on
inches. Figure 7-2 is
a blocking and tiedown detail dia-
Open Top Cars as shown in both the R a i l w a y L i n e
gram for figure 7-1.
Table 7-1 is the bill of material
Clearance Publication and the Official Railway Equip-
for blocking and tiedown of the vehicles, Tables 7-2
ment Register.
Table 7-1. Bill of Materials for Blocking and Tiedown of Typical M809-Series Truck on CONUS General-Purpose Flatcars (Figs 7-1 and 7-2)
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