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ACRC
Lynx

Armored Command and Reconnaissance Carrier1-3

ACRC: General
Date of first acceptance September 1966 Total acceptances 260+
Manufacturer FMC Corp. Crew
3 men:
  • Commander in hull center
  • Driver in hull left front
  • Observer in hull right front
ACRC: Dimensions
Combat weight 18,650lbs
8460kg		 Height over .50cal cupola MG 85.5"
217cm
Length 181"
460cm		 Gun overhang forward 0"
Width over track shrouds 95"
240cm		 Tread 74.25"
188.6cm
Ground clearance 16.1"
40.9cm		 Ground pressure, zero penetration 6.6psi
.46kg/cm²
ACRC: Armament
Type Mount Ammunition Traverse Elevation
.50cal M2TTHB MG M26 cupola 1155 rounds 360°
(manual)		 Manual
Night vision
Infrared periscope M19 for driver
ACRC: Armor
Assembly
Welding
Hull
Rolled 5086 aluminum armor
Location Thickness Angle from vertical
Upper front 1.25"
3.18cm		 60°
Lower front 1.75"
4.45cm		 29°
Upper sides 1.25"
3.18cm		 0°
Lower sides .75"
1.9cm		 0°
Upper rear 1.25"
3.18cm		 0°
Lower rear 1.25"
3.18cm		 30°
Top 1.25"
3.18cm		 90°
Floor 1.00"
2.54cm		 90°
ACRC: Automotive
Engine General Motors 6V53; 6 cylinder, 2 cycle, vee diesel
Horsepower Gross: 212@2800rpm Torque Gross: 492 ft-lb@1300rpm Fuel capacity 87gal
330L
Transmission Allison TX-100, 3 speeds forward, 1 reverse
Steering DS200 controlled differential, steering levers
Brakes Differential band
ACRC: Suspension
Type Road wheels Track return rollers
Torsion bar 4 individually sprung dual/track Flat track
Drive sprockets Idlers Shock absorbers
10-tooth front drive Dual adjustable at rear of track On first and last road wheels/track
ACRC: Track
T130E1
Center guide, single pin, steel with detachable rubber pad
Width 15"
38cm		 Pitch 6"
15cm		 Shoes/track Left side: 59
Right side: 60		 Ground contact length 94"
240cm
ACRC: Performance
Max level road speed 40mph
64kph		 Max water speed 4mph
6kph
Max trench 60"
150cm		 Max grade 60%
Max vertical obstacle 25"
64cm		 Min turning diameter 24'
7.3m
Max fording depth Floats Cruising range ~325mi, roads
~523km, roads

FMC's command and reconnaissance vehicle was based on the M113A1 armored personnel carrier, and was sometimes referred to as M113A1½. In contrast to the APC, the ACRC's engine was placed in the rear of the vehicle. Various weapons cupolas could be fitted to the commander's station, including the M27 cupola fitted with the M139 20mm gun. An access door was behind the observer on the right side of the vehicle. The front hull of the ACRC was shaped better than that of the M114, allowing the ACRC to cross ditches and exit waterways more easily than the other vehicle. But, M114 was already in production when the ACRC was designed, so it was not accepted by the US Army. The Dutch army, however, bought over 260 ACRCs, and beginning in 1974 fitted them with multiple weapons suites, including a turret designed by Oerlikon armed with a 25mm gun.

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Armored Command and Reconnaissance Carrier Lynx1-3

Lynx: General
Date of first acceptance 1968 Total acceptances 174
Manufacturer FMC Corp. Crew
3 men:
  • Commander in hull center
  • Driver in hull left front
  • Radioman-observer in hull left center
Lynx: Dimensions
Combat weight 19,340lbs
8772kg		 Height over .50cal cupola MG 85.5"
217cm
Length 181"
460cm		 Gun overhang forward 0"
Width over track shrouds 95"
240cm		 Tread 74.25"
188.6cm
Ground clearance 16.1"
40.9cm		 Ground pressure, zero penetration 6.9psi
.48kg/cm²
Lynx: Armament
Type Mount Ammunition Traverse Elevation
.50cal M2TTHB MG M26 cupola 1155 rounds 360°
(manual)		 Manual
7.62mm MG Observer's station 2000 rounds 360°
(manual)		 Manual
Night vision
Infrared periscope M19 for driver
Lynx: Armor
Assembly
Welding
Hull
Rolled 5086 aluminum armor
Location Thickness Angle from vertical
Upper front 1.25"
3.18cm		 60°
Lower front 1.75"
4.45cm		 29°
Upper sides 1.25"
3.18cm		 0°
Lower sides .75"
1.9cm		 0°
Upper rear 1.25"
3.18cm		 0°
Lower rear 1.25"
3.18cm		 30°
Top 1.25"
3.18cm		 90°
Floor 1.00"
2.54cm		 90°
Lynx: Automotive
Engine General Motors 6V53; 6 cylinder, 2 cycle, vee diesel
Horsepower Gross: 212@2800rpm Torque Gross: 492 ft-lb@1300rpm Fuel capacity 87gal
330L
Transmission Allison TX-100, 3 speeds forward, 1 reverse
Steering DS200 controlled differential, steering levers
Brakes Differential band
Lynx: Suspension
Type Road wheels Track return rollers
Torsion bar 4 individually sprung dual/track Flat track
Drive sprockets Idlers Shock absorbers
10-tooth front drive Dual adjustable at rear of track On first and last road wheels/track
Lynx: Track
T130E1
Center guide, single pin, steel with detachable rubber pad
Width 15"
38cm		 Pitch 6"
15cm		 Shoes/track Left side: 59
Right side: 60		 Ground contact length 94"
240cm
Lynx: Performance
Max level road speed 40mph
64kph		 Max water speed 4mph
6kph
Max trench 60"
150cm		 Max grade 60%
Max vertical obstacle 25"
64cm		 Min turning diameter 24'
7.3m
Max fording depth Floats Cruising range ~325mi, roads
~523km, roads

The Lynx was a modified form of the FMC ACRC employed by Canada. The Lynx moved the observer from beside the driver to a position behind him, and placed a pintle-mounted 7.62mm machine gun behind the observer's hatch. This crew rearrangement also forced the commander's station to the right of the vehicle's centerline. The side access door was eliminated in favor of a floor escape hatch. Lynx also mounted a smoke grenade launcher behind each headlight cluster.

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References

  1. Hunnicutt, R.P. Bradley: A History of American Fighting and Support Vehicles. Navato, CA: Presidio Press, 1999. Reprinted with permission from Bradley, R.P. Hunnicutt ©1999, available from Presidio Press, 505B San Martin Drive, Suite 160, Navato, CA 94945.
  2. Crismon, Fred W. U.S. Military Tracked Vehicles. Osceola, WI: Motorbooks International, 1992.
  3. Hogg, Ian V. The Greenhill Armoured Fighting Vehicles Data Book. London: Greenhill Books, 2000.
Last updated 7 Nov 2017.
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© Copyright 2001-17 Chris Conners