Credit
Bublegun · CC BY-SA 3.0 · Resized · CC BY-SA 3.0 · Source ↗ · Modified
FORCETALLY
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Measured figures
Configuration
| Specification | 20 mm modèle F2 gun | Bofors 57 mm Naval Automatic Gun L/70 |
|---|---|---|
| Type | Autocannon[source] | Naval artillery[source] |
| Place of origin | France[source] | Sweden[source] |
| Action | Gas unlocked, delayed blowback[source] | Electronic firing[source] |
| Elevation | −15° to + 65° |
without ammunition
Single source332 kg (732 lb) (without ammunition)[source]
Mark 3 per complete round
Single sourceMark 3 weight including 1,000 rounds onboard, each weighing
Single sourceMark 3: 14,000 kg (31,000 lb ) (weight including 1,000 rounds onboard, each weighing 6.5 kg (14 lb) per complete round)[source]
Bars compare reported quantities only. A larger figure does not make a system better; configurations and test conditions differ.
Mark 1: −10°/+78° (40°/s) Mark 2: −10°/+75° (40°/s) Mark 3: −10°/+77° (44°/s)[source] |
| In service | — | 1971–present[source] |
|---|
| Used by | — | See users[source] |
|---|
| Designer | — | Bofors Defence[source] |
|---|
| Designed | — | Mark 1: 1970 Mark 2: 1981 Mark 3: 1995[source] |
|---|
| Manufacturer | — | Bofors Defence (1970–2000) United Defense (2000–2005) BAE Systems AB (2005 onwards)[source] |
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| Produced | — | Mark 1: 1970 Mark 2: 1985 Mark 3: 2000[source] |
|---|
| Variants | — | See variants[source] |
|---|
| Shell | — | 57 × 438 mm R (m/70) 6.1 kg (13 lb ) complete round 2.4 kg (5.3 lb ) pre-fragmented shell[source] |
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| Barrels | — | Single barrel (progressive RH parabolic twist, 24 grooves)[source] |
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| Traverse | — | Full 360°: Mark 1: 55°/s Mark 2: 55°/s Mark 3: 57°/s[source] |
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| Feed system | — | Magazine : Mark 1: 40 ready rounds, 128 rounds in ready racks in mount Mark 2: 120 ready rounds, up to 40 rounds in dual hoists Mark 3: 120 ready rounds, up to 40 rounds in dual hoists, 1,000 rounds in mounting[source] |
|---|
| Sights | — | Gyro-stabilized in local control.[source] |
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| Reported operators | — |
|
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