30 mm NR-30 aircraft cannon ammunition

Automatic Aircraft Gun Type 1. The 30 mm Type 1 is the standard gun fitted to the Chinese F-6, the much modified Chinese version of the MiG-19, and has a rate of fire of approximately 900 rds/min. The rounds, some of which have been developed locally, are formed into belts using pressed steel links. Description There are seven main types of 30 mm NR-30 ammunition, HEFI, HEFI-T, HE-I, APE, AP-T, CC and Anti-radar. All of these rounds are fixed with the projectiles rigidly secured to their brass cartridge case by two 360º crimping rings fitting into cannelures in the projectile body. A raised belt is located just in front of the wide extraction groove at the base of the cartridge case. Projectile bodies are forged steel and are fitted with a copper or gilding metal drive band. On the HEFI and HEFI-T a weatherproof A-30 or B-30 point detonating fuze is fitted to the nose. The explosive filling is 36.9 g of A-IX-2 (desensitised RDX/Aluminium). The HEI is a high-explosive incendiary round which equates to the Western Bloc SAPHEI. Intended for use against sensor-carrying balloons and similar lightly constructed aerial platforms. It is provided with a highly sensitive nose fuze provided with a self-destruct element operating from 12 to 20 seconds after firing. The fuze is armed at a distance of from 30 to 250 m from the gun muzzle. The APE uses a VLM-30 base detonating fuze to ignite the 25 g explosive payload. The fuze also contains a self-destruct element functioning 14 to 20 seconds after leaving the gun muzzle. Armour penetration at 700 m is 20 mm of armour set at an angle of 60º. The same penetration performance is achieved by the AP-T projectile on which the tracer element burns for 2 seconds. The CC (Cargo Carrying) round carries a `multiple element projectile' containing 28 bullet-shaped heavy metal subprojectiles, each weighing 35 g. The subprojectiles are ejected forwards from 1.1 to 1.5 seconds after firing to form a destructive cone effective against personnel and soft-skinned targets on the ground. The Anti-radar round carries a projectile from which approximately six radar jamming chaff particles are ejected while the projectile is still in flight. Two different lengths of chaff element are available to suit the types of radar likely to be encountered. Ejection takes place from 6 to 8 seconds after the projectile leaves the gun muzzle so that after 30 seconds the chaff will form an effective reflective cloud covering 14 to 18.5 m 2. A TP cartridge is completely inert and has a plug in place of the nose fuze. At one point various TP rounds were produced for air or ground targets, apparently with different types of target strike indication elements. The cartridge case is drawn brass and contains 95 g of a single base propellant known as 5/7 B/A or 6/7 FL. There is a percussion primer in the base. The muzzle velocity of this round is 795 to 800 m/s but the effective range is stated to be limited to 800 m. The `direct fire range' is 600 m. Maximum useful range is 2,000 m. Authorised fuzes HEFI and HEFI-T - A-30 or B-30 PD APE - VLM-30 BD Type 1 HE-I - Pào-yin-2 PD Equivalent rounds BULGARIA BULGARIA Manufacturer Arsenal Type: Not specified, believed to be HEFI Description: Weight given as 848 g and muzzle velocity 791-807 m/s Manufacturer Arminex Type: Not specified, believed to be HEFI Description: Described as for HP-30 aircraft gun. Cartridge weight given as 848 g and projectile weight 406 g. Muzzle velocity is 799 m/s (±8 m/s) CHINA , PEOPLE'S REPUBLIC Manufacturer China North Industries (NORINCO) Type: APHE-SD, HE-I-SD, HEI-T-SD. Description: HE-I fitted with Pào-yin-2 PD fuze. May be fitted with brass or steel cartridge cases EGYPT Manufacturer Maasara Company for Engineering Type: TP, TP-T Description: Standard specifications as text PAKISTAN Manufacturer Pakistan Ordnance Factories Type: HE-I, API, Ball (TP) Description: Licence-produced versions of Chinese 30 mm Type 1 ammunition. Standard specifications as text