The Bell Model 427 is a twin-engine civil utility helicopter, a derivative of the Bell Model 206-L4 "LongRanger" and Model 407. Like the 407, the 427 uses a 4-bladed rotor system with a rigid, composite rotor hub instead of the 2-bladed conventional rotor of the Model 206. The major difference between the 427 and 407 is the twin engine configuration, versus the single engine of the 407. The 427 offers 8-place seating (two individual seats in the front and a two 3-place bench seats in a club configuration in back) and has systems nearly identical to the 407.

The 427 was replaced by the improved 429 in February 2005.

Specifications

General Characteristics

• Crew: one pilot
• Capacity: seven passengers
• Length (with main rotor): 42 ft 6 in (13.0 m)
• Main rotor diameter: 37 ft 0 in (12.1 m)
• Height: 10 ft 8 in (3.26 m)
• Main rotor area: 962 ft² (89 m²)
• Empty: 3,875 lb (1,758 kg)
• Loaded: lb ( kg)
• Maximum takeoff: 6,500 lb (2,971 kg)
• Powerplant: 2x Pratt & Whitney Canada PW207 D turboshafts, 550 shp (410 kW) (MCP)

Performance

• Maximum speed: 136 mph (251 km/h)
• Range: 387 miles (716 km)
• Service ceiling: 10,000 ft (3,048 m) ISA
• Rate of climb: ft/min ( m/min)
• Main rotor loading: lb/ft² ( kg/m²)
• Power/Mass: hp/lb ( kW/kg)

External link

Bell 427 on manufacturer's site

Related content

Related development: Bell 206 - Bell 407 - Bell 429

Comparable aircraft:

Designation sequence: 407 - 409 - 412 - 427 - 429 - 430 - 533