(2)
Off road: soils trafficability data.
5. Item Characteristics and
A vehicle cone index (VCI) is a number which tests have
Related Data
proven can be related to the characteristics of a
(Data based on item in unloaded condition unless
particular vehicle (see para 5). This number, when used
otherwise indicated.)
in connection with the rating cone index (of the soil), can
Nomenclature- Recovery Vehicle, Full-Tracked,
forecast the ability of that vehicle to repeatedly cross
Medium M88.
fine-grained soil, and sands with fines, poorly drained.
FSN
2320-678-5772
LIN
R50680
The rating cone index is obtained by use of the cone
Type Classification...........................
Standard A
penetrometer and its associated equipment. See TB
Item Weight.....................................
ENG 37 for use of the equipment in the field and for
Unloaded ................................
108,000 lb (48990 kg)
interpretation of index numbers.
With Combat Load..................
112,000 lb (50800 kg.)
Ground Pressure:
c. Shipment by Rail.
Unloaded ................................
11.0 psi (0.75 kg/sq cm)
(1)
Within CONUS, the item loaded on a
With Combat Load...................
10.6 psi (0.77 kg/sq cm)
railroad
flatcar
can
be
transported
without
Center of Gravity:
sectionalization but it exceeds the width limitations of
Above Ground..........................
45.1 in. (1.15 m)
the "Outline Diagram for Single Loads, Without End
From CL, Drive
Sprocket
131.5 in. (3.34 m.)
Overhang, on Open Top Cars,"* and verification of line
Dimensions and Shipping Data
clearances will be required.
Length.....................................
325.5 in. (8.27 m)
After sectionalization as outlined in para 4, the item can
Width, Operational..................
.135 in. (3.43 m)
be transported on a railroad flatcar without limitations.
Width, Reduced......................
124 in. (3.15 m)
Height, Operational ..................
127 in. (3.25) m
(2)
In countries complying with the Berne
Height, w/o Machine
International Rail Interchange Agreement, the item
Gun.......................................
117.2 in. (2.98 m)
loaded on a railroad flatcar can be transported without
Height, Reduced.....................
112.6 in. (2.86 m)
sectionalization but it exceeds the width and height
Area, Operational....................
305.1 sq ft (28.37 sq) m
Area, Reduced........................
280.3 sq ft (26.07 sq m)
limitations of the Berne Clearance Diagram, and
Volume, Operational ...............
3.229.6 cu ft (91.41 cu m)
verification of line clearances will be required. After
Volume, w/o Machine
sectionalization as outlined in para 4, the item can be
Gun.......................................
2,980.3 cu ft (84.33 cu m)
transported on a railroad flatcar without limitations.
Volume, Reduced ...................
2,630.0 cu ft (74.43 cu m)
(3)
See appendix for information regarding
Angle of Approach ..........................
18
Angle of Departure ..........................
26
blocking and restraining the item on railroad flatcars.
Soils Trafficability Data (para 3b(2)):
d. Shipment by Water. The item can be transported
1. Item at Unloaded
by inland waterway cargo carriers and lighters of
Weight plus Crew
adequate capacity. It can also be shipped by Mariner-,
of Four ......................
VCI 60
2. Item at Combat
Victory-, and Liberty-class seagoing vessels, subject to
Weight ..................................
VCI 61
the following limitations:
Vehicle Classification:
Hatch size
Hatch boom
Hatches requiring
1. Item at Unloaded
Class
adequate
adequate
terminal crane
Weight Plus Crew
Mariner
No.2,3,4,5
No.4,6
No. 2, 3, 5, 7
of Four ..................................
53
6, 7
2. Item at Combat
Victory
No. 3, 4
No. 3
No. 4
Weight ..................................
55
Liberty
No. 1, 2, 4, 5
No. 2*
No. 1, 4. 5
CONUS Freight,
Army Tractor Tanks
*When equipped with 50 ton (long ton) cargo boom.
Classification .........................
without guns, with
necessary equipment
4. Sectionalization
properly secured inside
tanks, or boxed and
The overall height of 127 inches (3.23 m) can be
shipped with tanks.
reduced to 112.6 inches (2.86 m) and the overall width
Uniform Freight
of 135 inches (3.43 m) can be reduced to 124 inches
Classification (UFC) ..
U72770
(3.15 m) by removing the machine gun, fenders, spade
National Motor Freight
Classification
extensions, tracks, track-drive hubs, and sprockets.
(NMFC).................................
145720
*Detailed information available in Railway Line Clearances publication.
Publications......................................
TM 9-2320-222-10
TM 9-2320-222-20
TB ENG 37
7