FORCETALLY
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At a glance
3-inch/50-caliber gunlarger figure on 1 of 2
Bofors 40 Mk4larger figure on 1 of 2
Counts only measures both sources give with the same scope. A larger figure is not a better system.
Measured figures
Mark 2
Single sourceMark 21
Single sourceConfiguration
| Specification | 3-inch/50-caliber gun | Bofors 40 Mk4 |
|---|---|---|
| Crew | — | remote controlled with gyro-stabilised local control back-up[source] |
| Type | Naval gun[source] | Naval gun[source] |
| Place of origin | United States[source] | Sweden[source] |
| In service | 1900–1990 (US Navy)[source] | 2012–present[source] |
Mark 2 : 153.8 inches (3.91 m) Mark 21 : 159.7 inches (4.06 m)[source]
Mark 21 bore (50 calibres)
Single sourceMark 2 bore (50 calibers )
Single sourceMark 2 : 150 inches (380 cm) bore (50 calibers ) Mark 21 : 150.3 inches (382 cm) bore (50 calibres)[source]
Bars compare reported quantities only. A larger figure does not make a system better; configurations and test conditions differ.
| Used by | US Navy[source] | See operators[source] |
|---|
| Designed | Mark 2 : 1898 * Mark 10 : 1915 * Mark 22 : 1944[source] | — |
|---|
| Produced | 1900–1948[source] | 2009–present[source] |
|---|
| Variants | Marks 2, 3, 5, 6, 8, 10, 17, 18, 19, 20, 21, and 22[source] | — |
|---|
| Shell | complete round: 24 lb (11 kg); projectile weight: 13 lb (5.9 kg) projectile types: AP , AA (with VT proximity fuze), HE, Illumination[source] | 40 × 365 cartridge weight 2.5 kilograms (5.5 lb ) shell weight 0.975 kilograms (2.15 lb )[source] |
|---|
| Elevation | Pedestal Mount : -10° to +15° AA Mount : -10° to +85°[source] | −20°/+80°[source] |
|---|
| Traverse | 360°[source] | 360°[source] |
|---|
| Sights | Peep-site and Optical telescope[source] | — |
|---|
| Designer | — | BAE Systems AB[source] |
|---|
| Manufacturer | — | BAE Systems AB[source] |
|---|
| Feed system | — | Magazine capacity : 100 ready rounds[source] |
|---|
| Reported operators | — |
|
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