MG FF/M (20 mm)

This page is about the German machine gun MG FF/M (20 mm). For the other version, see MG FF (20 mm).

Description

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General info

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Available ammunition

• Default: IT* · HEI · APHE
• Universal: IT* · HEI · HEI · APHE
• Air targets: FI-T* · HEI · HEI · FI-T* · HEI · HEI · APHE
• Tracers: IT*
• Stealth: APHE · HEI · HEI · HEI · AP-I
• Armoured targets (turret): AP-I · AP-I · APHE · IT*
• Universal (turret): AP-I · IT* · HEI · HEI

Penetration statistics
Belt	Penetration @ 0° Angle of Attack (mm)
	10 m	100 m	500 m	1,000 m	1,500 m	2,000 m
Default	19	18	15	10	3	3
Universal	19	18	15	10	3	3
Air targets	19	18	15	10	6	6
Tracers	16	12	7	3	1	1
Stealth	20	18	15	10	3	3
Armoured targets (turret)	20	18	15	10	3	3
Universal (turret)	25	22	13	7	4	3

Comparison with analogues

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Usage in battles

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Pros and cons

Pros:

• Shells are more powerful than standard rounds of the same calibre due to presence of Minengeschoß shells

Cons:

• Gun magazine in single-engine fighters is small

History

The MG FF, a licensed copy of the Oerlikon FF, suffered from a low rate of fire and low muzzle velocity compared to contemporary aircraft cannons used by the Allies. To improve the muzzle velocity, a new "mine shell" was created by reducing the thickness of the casing wall to increase the amount of propellant. The resulting cannon was lighter and boasted a higher muzzle velocity, but required a modification to the MG FF's recoil system. The subsequent modification was designated the MG FF/M, to stop the ground crews from accidentally loading the MG FF ammo which would damage the gun, and was accepted into service in the summer of 1940 on the Bf 109 E-4 and the Bf 110 aircraft. It would later see use on German medium bombers such as the Ju 88, Do 17, He 111, and Do 217. The MG FF/M was also used on the Fw 190 A series, but due to the limited capacity of the drum magazines (60 rounds compared to the 125 round belts) it would be phased out on most aircraft in favour of the lighter and higher capacity MG 151, which would become the primary German aircraft cannon during World War II.

Media

Videos

{{Youtube-gallery|HSIa5NwBTG8|Minengeschoß: More Bang for Your Buck - Militaria Reviewed

See also

• MG FF (20 mm)

External links

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