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 1 of 1
Oerlikon 20 mm cannonlarger figure on 0 of 1
Counts only measures both sources give with the same scope. A larger figure is not a better system.
Measured figures
Mass
Single sourcePreviously Now
Single sourcePreviously, 18 tonnes (18 long tons; 20 short tons). Now, 12 tonnes (12 long tons; 13 short tons).[source]
L70 Total gun barrel weight
Single sourceL85 Empty
Single sourceLoaded with 200 rounds
Single sourceMinus breech mechanism
Single sourceL70 Total gun barrel weight: 68.04 kilograms (150.0 lb ) Minus breech mechanism: 20.865 kg (46.00 lb) L85 Empty: 92.0 kilograms (202.8 lb ) Loaded with 200 rounds: 182.0 kg (401.2 lb)[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]
Effective; >
Single sourceMaximum; High Explosive Base Bleed Shell
Single sourceMaximum; Ramjet Shell
Single source>45 km[source]
48.074 km (High Explosive Base Bleed Shell) 80 km ( Ramjet Shell )[source]
Effective; Against low-flying aircraft (HE round) L70
Single sourceEffective; L85
Single sourceMaximum; HE round at 45° L70
Single sourceMaximum; L85
Single sourceAgainst low-flying aircraft (HE round) L70: 914 m (1,000 yd) L85: 1,500 m (1,600 yd)[source]
HE round at 45° L70: 4,389 m (4,800 yd) L85: 6,800 m (7,400 yd)[source]
Burst: 5 rounds in 60 sec. Improved to 6 rounds in 30 sec. Intense: 10 rounds in 2 min 30 sec Sustained: 60 rounds in 60 min[source]
L70: Cyclic · source measurement 1
Single sourceL70: Cyclic · source measurement 3
Single sourcePractical L85: Cyclic
Single sourceL70: Cyclic: 450 rounds per minute Practical: 250-320 rounds per minute L85: Cyclic: 900 to 1,000 rounds per minute[source]
L70
Single sourceL85
Single sourceL70: 820 m/s (2,700 ft/s) L85: 1,050 m/s (3,400 ft/s)[source]
Bars compare reported quantities only. A larger figure does not make a system better; configurations and test conditions differ.
Configuration
| Specification | ATAGS (howitzer) | Oerlikon 20 mm cannon |
|---|---|---|
| Type | Towed Howitzer[source] | Autocannon[source] |
| Place of origin | India[source] | Switzerland[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] | Reinhold Becker[source] |
| Designed | 2013-2017[source] | 1935[source] |
| Manufacturer | Kalyani Strategic Systems Tata Advanced Systems[source] | Oerlikon Oerlikon Contraves[source] |
| Produced | 2019[source] | 1937−1995[source] |
| No. built | 40[source] | 124,734[source] |
| Action | Auto gun alignment and positioning[source] | API blowback Gas operated, power reserve loading[source] |
| Breech | Screw type[source] | — |
| Recoil | Electro-rheological/Magneto-rheological[source] | — |
| Elevation | Servo based, -3/+75°[source] | Manual, -15°/+90°[source] |
| Traverse | Servo based, ±25°, 25 m diameter[source] | Manual, full 360°[source] |
| Feed system | Automatic ammunition handling including crane[source] | Cylindrical magazine holding 60 rounds; later adjusted for belt-fed gun[source] |
| Sights | Thermal sight Gunners display[source] | — |
| In service | — | 1937–present[source] |
| Wars | — | World War II Nigerian Civil War[source] |
| Variants | — | Oerlikon FF MG FF cannon[source] |
| Shell | — | L70: 20×110mmRB L85: 20×128mm[source] |
| Shell weight | — | HE: 123 g (4.3 oz) HE/T: 116 g (4.1 oz)[source] |
| Barrels | — | Single barrel (progressive RH parabolic twist, 9 grooves)[source] |
| Reported operators |
| — |