Armament The armament configurations described are for the L-39 ZA/ART. An under fuselage pod below front cockpit, housing a single 23 mm GSh-23 two-barrel gun with the ammunition (maximum 150 rounds) housed in the fuselage above the gun pod. Gun/rocket/missile firing and weapon release controls in front cockpit only. Four underwing hardpoints, inboard pair each stressed for up to 500 kg (1,102 lb) and outer pair for up to 250 kg (551 lb) each. Maximum underwing stores load 1,000 kg (2,205 lb). Non-jettisonable pylons, each comprising of an MD3-57D stores rack. Typical underwing stores can include various combinations of bombs (two of up to 500 kg or four of up to 250 kg), four rocket launchers for 2.75 in FFAR or CRV-7 rockets, AIM-9 air-to-air missiles (outboard stations only), two 150 or 350 litre drop tanks (inboard stations only) or two training dispensers.