From Wiki
Venom
Capacity: 6,660 lb (3,020 kg) including up to ten crashworthy passenger seats, six litters or equivalent cargo[33]
Length: 58 ft 4 in (17.78 m)
Rotor diameter: 48 ft 10 in (14.88 m)
Height: 14 ft 7 in (4.5 m)
Disc area: 1,808 ft² (168.0 m²)
Empty weight: 11,840 lb (5,370 kg)
Useful load: 6,660 lb (3,020 kg)
Max. takeoff weight: 18,500 lb (8,390 kg)
Powerplant: 2 × General Electric T700-GE-401C turboshaft, 1,828 shp for 2.5 min; 1,546 shp continuous (1,360 kW for 2.5 min; 1,150 kW continuous) each
Griffon
Capacity: 10 troops or 6 stretchers (some sources state maximum 8 passengers)
Length: 17.1 m (56 ft 1 in)
Rotor diameter: 14 m (45 ft 11 in)
Height: 4.6 m (15 ft 1 in)
Max. takeoff weight: 5,355 kg (11,900 lb)
Powerplant: 1 × Pratt & Whitney Canada PT6T-3D turboshaft engine, 1,250 shp (932 kW), 900 shp (671 kW) for each power section