Armored Vehicle Launched Bridge M60A11-6

AVLB M60A1: General
Date of first acceptance 1964 Total acceptances 393
Manufacturer Chrysler Corp. Crew
2 men:
  • Commander in hull center right
  • Operator in hull center left
AVLB M60A1: Dimensions
Weight with bridge 121,700lbs
55,200kg
Height with bridge 153.6"
390.1cm
Length with bridge 444"
1130cm
Width with bridge 158.4"
402.3cm
Tread 115.0"
292.1cm
Ground clearance 14"
36cm
Ground pressure, with bridge 12.2psi
.856kg/cm²
AVLB M60A1: Armament
None
Night vision
AN/VVS-2 night vision viewer for operator
AVLB M60A1: Armor
Assembly
Welding
Hull
Cast homogeneous steel
Location Thickness Angle from vertical
Upper front 4.29"
10.9cm
65°
Lower front 5.63" to 3.35"
14.3cm to 8.51cm
55°
Sides 2.9" to 1.41"
7.4cm to 3.58cm
0° to 45°
Exhaust grille 1.0" equivalent
2.5cm equivalent
Lower rear 1.6" to 1.2"
4.1cm to 3.0cm
30° to 60°
Top 1.41"
3.58cm
90°
Front floor 0.75"
1.9cm
90°
Rear floor 0.5"
1.3cm
90°
AVLB M60A1: Automotive
Engine Continental AVDS-1790-2A, or -2D, or -2DA; 12 cylinder, 4 cycle, 90° vee, supercharged diesel
Horsepower Net: 643@2400rpm
Gross: 750@2400rpm
Torque Net: 1575 ft-lb@1750rpm
Gross: 1710 ft-lb@1800rpm
Fuel capacity 385gal
1460L
Transmission General Motors CD-850-6A, 2 ranges forward, 1 reverse
Steering Mechanical, T-bar
Brakes Multiple disc
AVLB M60A1: Suspension
Type Road wheels Track return rollers
Torsion bar 6 independently sprung dual/track 3 dual/track
Drive sprockets Idlers Shock absorbers
11-tooth rear drive Dual compensating at front of track On first 2 and last road wheels/track
AVLB M60A1: Track
T97E2
Center guide, double pin, rubber chevron
Width 28"
71cm
Pitch 6.94"
17.6cm
Shoes/track 81 Ground contact length 166.72"
423.47cm
T142
Center guide, double pin, replaceable rubber pad
Width 28"
71cm
Pitch 6.94"
17.6cm
Shoes/track 80 Ground contact length 166.72"
423.47cm
AVLB M60A1: Performance
Max level road speed 30mph sustained
48kph sustained
Max trench 84"
210cm
Max grade 30% Max sideslope 15%
Max vertical obstacle 15"
38cm
Min turning diameter Pivot
Max fording depth 48"
120cm
Cruising range ~mi
~km

The hulls of the M60A1 and M60A2 were converted into bridgelayers. The conversion involved removing the turret and housing the crew within the turret ring under cupolas with pivoting hatches. The operator drove the vehicle and worked the bridge hydraulic controls, while the commander served as a ground guide. The bridge launching and resting equipment was installed on the hull roof, and the scissors-type bridge was stowed on the of the hull. Up to a 60' (18m) span could be crossed with a class 60 or 70 bridge that featured a roadway width of 150" (380cm). Hydraulic cylinders raised the bridge from the chassis, lowered it to the ground, and finally unfolded it. The bridge could be emplaced in 2-5 minutes, and could be retrieved from either end of the bridge in 10 mintues. Slope limits when launching the bridge were 15% uphill and downhill and 8% to the side. Without the bridge, the vehicle was 339.6" (862.6cm) long, 120" (300cm) tall, and 144" (366cm) wide, and it weighed 92,200lb (41,800kg) with a 9.0psi (.63kg/cm²) ground pressure.

Home       Vehicle list       Top

                                                                                    


References

  1. TM 5-5420-202-10 Operator's Manual for Launcher, M48A5 Tank Chassis NSN 5420-01-076-6096 (EIC: ARE) Launcher, M60A1 Tank Chassis NSN 5420-00-889-2020 (EIC: ARC) Transporting for Bridge Armored-vehicle Launched: Scissoring-type, Class 60 or Class 70. Washington, D.C.: Dept. of the Army, 30 Dec 2009.
  2. TM 5-5420-202-20-1 Organizational Maintenance Manual M60A1 Tank Chassis, Transporting: For Bridge, Armored-Vehicle-Launched; Scissoring Type, Class 60 (5420-00-889-2020). Washington, D.C.: Dept. of the Army, 30 Oct 2006.
  3. Hunnicutt, R.P. Patton: A History of the American Main Battle Tank, volume 1. Navato, CA: Presidio Press, 1984.
  4. Crismon, Fred W. U.S. Military Tracked Vehicles. Osceola, WI: Motorbooks International, 1992.
  5. Lewis, Jeff, and Joe D. M60 Spotters Guide, version 2. 5 Aug 2007. 5 Dec 2007 <http://www.com-central.net/index.php?name=Downloads&get=306> Com-Central.net Downloads
  6. "M60A1 Armored Vehicle Launched Bridge (M60A1 AVLB)." GlobalSecurity.org. 7 Jul 2011. 13 Apr 2017 .

Last updated 13 Apr 2017.
Questions? Comments? Corrections? Email me
© Copyright 2017 Chris Conners