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M109A6 Paladin



Overview


M109A6 Paladin

Two US Army M109A6 Paladins seen during an exercise in 2014.
Source: US Army - © Public domain

Origin
United States
Type
Self-propelled howitzer
Entered service
1993
Status
In service
Development
1984 - Early 1990's
Developer
United States
Production
Early 1990's - 1999 (950 pcs)
2000 - 2022 (27 pcs)
Producer
United States
Number produced
977
Designations
M109A3E2 (early project name)
Paladin (official nickname)
Notable users
United States
Ukraine
Saudi Arabia

Description


Introduction

The M109A6 Paladin is a modern era self-propelled howitzer of US origin. It was developed as a deep modernization of the existing M109 series under the Howitzer Extended Life Program.

Design

The M109A6 is a deep modernization of the earlier M109 system. It uses new ordnance of the same length, has a higher level of automation, uses digital communications and the crew is reduced from 6 to 4. The digital communications suite is encrypted and can receive direct input for the fire control system from an external fire direction center. A visual feature of the Paladin are the large stowage boxes on the turret rear which can be swung to the sides in order to access the large rear hatches in the turret bustle for easy access to the shells.

Firepower

The new 155mm M284 39-caliber howitzer provides increased accuracy, is easier to load by a reduced crew and can be quickly laid using digital fire control systems. Time to fire upon halt has been reduced from minutes to less than 30 seconds. This allows for faster time on target, and also reduces vulnerability to counter battery fire when using a fire and move doctrine. Effective range is 22 km with unassisted projectiles and 30 km with rocket assisted projectiles. For self-defense a 12.7mm M2HB heavy machine gun is mounted on the turret roof.

Protection

The M109A6 retains the all-around protection level of 32mm aluminum armor. This protects against small arms fire and shell splinters. However, protection is improved by introducing kevlar spall liners and internal steel armor around the charges. Furthermore, the M109A6 can be reloaded under armor protection by the M992 FAASV armored resupply vehicle.

Mobility

Mobility is kept at the same level as before. An uprated 440 hp diesel engine is used in the M109A6, compensating for the increase in combat weight. The tracked chassis provides good mobility in the field. Mobility was improved on the later M109A7 upgrade, which has a new chassis and significantly more powerful engine.

Users

The main user of the M109A6 Paladin is the United States Army. Over 950 were produced for the US Army. The Paladin was not exported until decades later. Some systems were delivered to Ukraine, while an export order to Saudi Arabia was approved. The M109A5, which is a less extensive upgrade, was exported to more nations than the Paladin. From 2022 onward the US Army Paladin systems were being modernized to the M109A7 standard.

Details


Facts M109A6 Paladin
General
Origin
United States
Type
Self-propelled howitzer
Crew
4 (commander, driver, gunner, loader)
Dimensions
Weight
28.8 t combat load
Length
9.75 m overall
6.89 m hull
Width
3.15 m hull
3.92 m over stowage racks
Height
3.24 m including M2HB mount
Main armament
Type
155mm M284 L/39 howitzer
Mount
M182A1 mount
Ammunition
39 rounds
Elevation
-3° to +75°, manual and hydraulic
Elevation rate
7°/s
Traverse
360°, manual and hydraulic
Traverse rate
11°/s
Range
22 km with unassisted projectiles
30 km with rocket assisted projectiles
Secondary armament
Type
12.7mm M2HB heavy machine gun
Mount
Pintle mount on turret roof
Ammunition
500 rounds, 100 ready to fire
Traverse
360°, manual
Stabilizer
No
Chassis
Chassis type
Tracked chassis, 7 roadhweels
Layout
Drive sprocket front, idler rear
Tread
2.77 m
Track width
0.38 m
Length on ground
3.96 m
Ground pressure
0.83 kg/cm²
Suspension
Torsion bar
Automotive
Engine model
Detroit Diesel 8V71T LHR
Engine type
Water-cooled supercharged V8 diesel
Power output
440 hp at 2.300 rpm
Transmission
Allison XTG-411-4A
4 forward, 2 reverse
Fuel
503 L
Mobility
Speed
56 km/h on road
Range
350 km on road
Turn radius
Pivot
Power to weight ratio
15.3 hp/t
Obstacle crossing
Ground clearance
0.43 m
Wall
0.5 m
Trench
1.8 m
Gradient
60 %
Slope
30 %
Fording
1.1 m unprepared
Amphibious with preparation and flotation devices
Protection
Armor type
Aluminum hull and turret
Armor thickness
32 mm hull all around
32 mm turret all around
NBC system
Yes
Smoke system
No
Equipment
Night vision
Yes
Fire control
M117A2 panoramic telescope for indirect fire
M118C for direct fire, 4x magnification with 10° field of view
Radio
Yes

Media


Related articles


M109A5

The M109A5 uses the same new ordnance of the M109A6, but on a platform similar to the M109A4.

Browning M2HB

A 12.7mm M2HB heavy machine gun is fitted on the turret roof of the Paladin for self-defense.