4.7 cm Skoda A9 cannon
A 47 mm calibre tank gun with a 43.4 calibre long barrel. It had a semi-automatic vertical wedge breech. The barrel of this gun was monoblock. The brake mechanism was located above the barrel and inside the turret.
This gun was designed as a tank gun. The short breech suited placement in a tank turret. The ballistic performance of the gun was satisfactory to the army and the manufacturer. However, there were various glitches in the function of the semi-automatic. This subsequently led to the development of the A11 type.
A slightly modified A9J cannon was installed in the prototype of the Š-I-j assault self-propelled gun, which was developed for Yugoslavia and subsequently sold to the Waffen SS.
It achieved a theoretical rate of fire of 20 rounds per minute, while allowing 10 aimed rounds/min. A fragmentation grenade and an anti-tank grenade were used for firing.
TTD of the Skoda A9 gun
calibre : 47 mm
weapon weight : 420 kg
barrel length : 43.4 calibre / 2040 mm
muzzle velocity : 782 m/s ( anti-tank )
muzzle velocity : 660 m/s ( shatterproof )
effective range : 1 500 m ( direct fire, anti-tank )
max. range : 4 000 m ( indirect fire 8°, fragmentation-type )
Munice
- fragmentation grenade, 2.6 kg full charge / 1.5 kg grenade
- anti-tank grenade weighing 2.79 kg full charge / 1.65 kg grenade
Anti-tank grenade penetration
48 mm at an angle of 30° at a distance of 500 m
41 mm at an angle of 30° at a distance of 1000 m
35 mm at an angle of 30° at a distance of 1500 m
Sources :
- V.Francev, Ch.Kliment, Czechoslovak Armored Vehicles, Ares, ISBN 80-86158-06-3
- V.Kralicky, Czechoslovak artillery weapons, Our Army, 1975
- HPM 5 / 1995
- author's archive
A 47 mm calibre tank gun with a 43.4 calibre long barrel. It had a semi-automatic vertical wedge breech. The barrel of this gun was monoblock. The brake mechanism was located above the barrel and inside the turret.
This gun was designed as a tank gun. The short breech suited placement in a tank turret. The ballistic performance of the gun was satisfactory to the army and the manufacturer. However, there were various glitches in the function of the semi-automatic. This subsequently led to the development of the A11 type.
A slightly modified A9J cannon was installed in the prototype of the Š-I-j assault self-propelled gun, which was developed for Yugoslavia and subsequently sold to the Waffen SS.
It achieved a theoretical rate of fire of 20 rounds per minute, while allowing 10 aimed rounds/min. A fragmentation grenade and an anti-tank grenade were used for firing.
TTD of the Skoda A9 gun
calibre : 47 mm
weapon weight : 420 kg
barrel length : 43.4 calibre / 2040 mm
muzzle velocity : 782 m/s ( anti-tank )
muzzle velocity : 660 m/s ( shatterproof )
effective range : 1 500 m ( direct fire, anti-tank )
max. range : 4 000 m ( indirect fire 8°, fragmentation-type )
Munice
- fragmentation grenade, 2.6 kg full charge / 1.5 kg grenade
- anti-tank grenade weighing 2.79 kg full charge / 1.65 kg grenade
Anti-tank grenade penetration
48 mm at an angle of 30° at a distance of 500 m
41 mm at an angle of 30° at a distance of 1000 m
35 mm at an angle of 30° at a distance of 1500 m
Sources :
- V.Francev, Ch.Kliment, Czechoslovak Armored Vehicles, Ares, ISBN 80-86158-06-3
- V.Kralicky, Czechoslovak artillery weapons, Our Army, 1975
- HPM 5 / 1995
- author's archive