Credit
DRDO, Government of India · GODL-India · Resized · GODL-India · Source ↗ · Modified
FORCETALLY
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At a glance
ATAGS (howitzer)larger figure on 2 of 2
M39 cannonlarger figure on 0 of 2
Counts only measures both sources give with the same scope. A larger figure is not a better system.
Measured figures
Configuration
| Specification | ATAGS (howitzer) | M39 cannon |
|---|---|---|
| Type | Towed Howitzer[source] | Single-barrel autocannon[source] |
| Place of origin | India[source] | United States[source] |
| Used by | Armenian Ground Forces Indian Army[source] | — |
| Designer | Armament Research and Development Establishment (Project Director: RP Pandey) Tata Power SED Bharat Forge[source] | Ford Motor Company[source] |
Maximum; with 95 kW APU
Single sourceMaximum; With towing vehicle Self propelled
Single sourceWith towing vehicle 60-80 km/h, Self propelled 18 km/h with 95 kW APU[source]
L/52
Single source8,060 mm (317 in) L/52[source]
Muzzle velocity
Single source1,030 m/s (3,300 ft/s)[source]
Bars compare reported quantities only. A larger figure does not make a system better; configurations and test conditions differ.
| Designed | 2013-2017[source] | 1951[source] |
|---|
| Manufacturer | Kalyani Strategic Systems Tata Advanced Systems[source] | Pontiac, Ford, FMC Corporation, and others[source] |
|---|
| Produced | 2019[source] | — |
|---|
| No. built | 40[source] | 35,500+[source] |
|---|
| Action | Auto gun alignment and positioning[source] | five-chamber revolver[source] |
|---|
| Breech | Screw type[source] | — |
|---|
| Recoil | Electro-rheological/Magneto-rheological[source] | — |
|---|
| Elevation | Servo based, -3/+75°[source] | — |
|---|
| Traverse | Servo based, ±25°, 25 m diameter[source] | — |
|---|
| Feed system | Automatic ammunition handling including crane[source] | — |
|---|
| Sights | Thermal sight Gunners display[source] | — |
|---|
| In service | — | 1952–present[source] |
|---|
| Variants | — | M39, M39A1, M39A2, M39A3[source] |
|---|
| Cartridge | — | 20×102mm[source] |
|---|
| Barrels | — | Single barrel (progressive RH parabolic twist, 9 grooves)[source] |
|---|
| Reported operators |
| — |
|---|