DARDO

DARDO OTO Twin 40L70
Type	Close-in weapon system
Place of origin	Italy
Production history
Manufacturer	OTO Melara
Variants	Compact, Fast Forty, Nobong, Marlin
Specifications
Mass	Complete gun mount (with ammunition): 5,400–5,600 kg (11,900–12,300 lb) Complete round (HE): 4.05 kg (8.9 lb)
Height	Enclosed turret: 2.4 m (7 ft 10 in) Type A mount: 1.3 m (4 ft 3 in) Type B mount: 0.92 m (3 ft 0 in)
Diameter	Mount ring: 1.7 m (5 ft 7 in) Working circle: 2.902 m (9 ft 6.3 in)
Caliber	40×364 mmR
Barrels	2 × Breda-built Bofors-40 mm L/70
Elevation	Minimum −13° Maximum +85° speed: 60°/s (70°/s Fast Forty)
Traverse	Full 360° traverse, speed: 90°/s (100°/s Fast Forty)
Rate of fire	2 × 300 round/min (Compact & Marlin) 2 × 450 round/min (Fast Forty)
Effective firing range	HE round: 4,000 m (4,400 yd)
Maximum firing range	12,500 m (7.8 mi) (maximum height 8,700 m (28,500 ft))
Feed system	Magazine: Compact: 736 HE rounds on Type A mount or 444 HE rounds on Type B mount Single Fast Forty: Dual feed mechanism with 144 HE or APFSDS rounds Twin Fast Forty: Dual feed mechanism with 736 HE rounds & 200 APFSDS rounds on Type A mount or 444 HE rounds & 200 APFSDS rounds on Type B mount Nobong: Dual feed mechanism (optional) with 704 ready-to-fire round Marlin: Dual feed mechanism with 80 ready-to-fire round

DARDO ("Dart" in Italian) originally known as Breda Type-70,^[1] also marketed as the OTO Twin 40L70 Compact,^[2] is a close-in weapon system (CIWS) built by the Italian companies Breda and Oto Melara. It is composed of two Breda-built Bofors 40 mm firing high explosive (HE) shells, a fire-control radar (Alenia RTN-10X Orion) and a fire-control system (Alenia RTN-20X Orion and Dardo). It is the last of a long series of Italian anti-aircraft weapons derived from the Swedish Bofors 40 mm autocannons (mounted on Breda built gun mounts such as the Type 64, Type 106, Type 107, Type 564 and Type 520).