TMM-3 Russian 6x6 Mobile Bridging System
TMM-3
Mobile Bridging System
Other
Basic Information
Name
TMM-3 Russian 6x6 Mobile Bridging System
Designation
TMM-3
Alternate Designation
—
Equipment Type
Mobile Bridging System
Manufacturer
INA
Date of Introduction
1972
Description
The TMM-3 is a heavy mechanized bridge-laying system developed by the former Soviet Union to support its land forces crossing natural obstacles such as rivers and canals as well as ditches. The TMM-3 bridge system supports armored vehicles weighing up to 60 tons at speeds below 15 kilometers per hour (kph) crossing obstacles that are up to 40 meters long and up to three meters deep. Typically a single TMM-3 bridge laying system requires up to four 6x6 KrAZ-255 trucks with each bridge being 10 meters long and can be set up in just 72 minutes.
Ground Specifications
Crew
1
Mobility Type
Wheeled (6x6)
Engine
V-8 Diesel
Max Speed
71.0 km/h
Range
825.0 km
Variants
TMM-1
50 ton scissor bridge on ZIL-157 chassis. Also known as TMM without suffix.
TMM-2
50 ton scissor bridge on KrAZ-214 chassis. Also known as TMM without suffix.
TMM-3
50 ton scissor bridge on KrAZ-255B chassis. Can be identified by steel frame with spare wheel above cab.
TMM-4
60 ton scissor bridge with stronger jacks on KrAZ-255B or KrAZ-260 chassis. In KrAZ-260 version spare wheel is located behind cab.
System
Alternate Designations
TMM-3
Type
Mobile Bridging System
Manufacturer
Company: INA; Country: Russia
Configuration
6x6
Chassis
Kraz-255B
Crew
1 + 1 in cab (driver, passenger)
Bridge Load Capacity
60,000 kg
Dimensions
Length
9.3 m
Width
3.2 m
Height
3.15 m
Weight
19,500 kg
Wheelbase
4.6 m + 1.4 m
Ground Clearance
0.36 m
Bridge Length
10.5 m
Bridge Width
3.8 m
Bridge Weight
7,000 kg
Bridge Load Capacity
60,000 kg
Automotive
Engine Name
YaMZ-238
Engine Type
V8 Diesel
Engine HP
240 hp at 2.100 rpm
Power-to-Weight Ratio, Empty
20 hp/t empty
Power-to-Weight Ratio, Full
12 hp/t max load
Fuel Capacity
330 liters
Transmission
Manual, 5 forward, 1 reverse
Electrical System
24V
Suspension
(front) longitudinal semi-elliptic springs; (rear) equaliser type on 2 longitudinal semi-elliptical springs
Steering
screw and nut with roller ball, hydraulic booster
Brakes
air, drums front and rear
Tires
1300 × 530-533
Range
825 - 950 km on road
Maximum Speed
71 km/h on road
Gradient
58 %
Vertical Obstacle
0.600m
Trench
0.680m
Protection
Armor
None, soft skin vehicle
Applique Armor
INA
Active Projection System
No
NBC Protection
No
Smoke Equipment
No
Image Sources
Details
Country of Origin
Russia
Category
Mobility
Land > Combat Support Vehicles > Mobility
Filter Label
T
Classification
Domain
Ground
Equipment Status
Active
Dimensions
Length
9.3 m
Width
3.2 m
Height
3.15 m
Weight
19500 kg
Operators (7)
Russia
China
Ukraine
Belarus
Kazakhstan
Vietnam
CFE Treaty
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