Is 20mm considered a cannon?
Is 20mm considered a cannon?
The 20 mm caliber is a common firearm bore diameter, typically used to distinguish smaller-caliber weapons, commonly called “guns”, from larger-caliber “cannons” (e.g. machine gun vs. autocannon). All 20 mm cartridges have an outside projectile (bullet) diameter and barrel bore diameter of 0.787 inches (20.0 mm).
Are Hispano cannons still used?
The cannon is also referred to as Birkigt type 404, after its designer Marc Birkigt and later versions based on British development are known as 20 mm Hispano….Hispano-Suiza HS. 404.
| Hispano Mk.V | |
|---|---|
| Type | Aircraft cannon |
| Place of origin | United Kingdom |
| Service history | |
| Used by | United Kingdom & British Empire, Commonwealth, United States |
What is the range of a 20mm cannon?
| Oerlikon 20 mm cannon | |
|---|---|
| Muzzle velocity | L70: 820 m/s (2,700 ft/s) L85: 1,050 m/s (3,400 ft/s) |
| Effective firing range | Against low-flying aircraft (HE round) L70: 914 m (1,000 yd) L85: 1,500 m (1,600 yd) |
| Maximum firing range | HE round at 45° L70: 4,389 m (4,800 yd) L85: 6,800 m (7,400 yd) |
What is a 20mm cannon used for?
Like most cannon ammunition, 20mm caliber weapons are typically used against large targets such as vehicles, buildings, or aircraft. Though lethal against individual soldiers, 20mm ammunition is so large and heavy that its effects are inefficiently utilized on such relatively small targets.
What Cannons did the Spitfire have?
From June 1940, thirty of the aircraft were equipped with twin 20mm cannons. To distinguish between the two variants, the Spitfire Mk I’s equipped with lethal . 303 machine guns were designated IA’s. These machine guns were able to deliver a concentration of 160 rounds per second.
