Bell 412

The Bell 412 is a utility helicopter manufactured by Bell Helicopter. It is a development of the Bell 212 model, the major difference being the composite four-blade main rotor.

Design and development:

Development began in the late 1970s with two Bell 212 being converted into 412 prototypes. An advanced four blade main rotor with a smaller diameter replaced the 212's two blade rotor. A Bell 412 prototype first flew in August 1979. The initial model was certified in January 1981 with the deliveries commencing in the same month.
The 412 model was followed by the 412SP (Special Performance) version featuring larger fuel capacity, higher takeoff weight and optional seating arrangements. In 1991, the 412HP (High Performance) variant with improved transmission replaced the SP version in production. The current production version, 412EP (Enhanced Performance), is equipped with a dual digital automatic flight control system.
Over 700 Model 412s (including 260 by AgustaWestland) have been built.

Spesification of Bell 412 and Nbell-412 :
General characteristics
Crew: 1-2 pilots
Capacity: up to 13 passengers, maximum external load of 4,500 lb (2,040 kg)
Length: 56 ft 1 in (17.1 m)
Rotor diameter: 46 ft (14.0 m)
Height: 15 ft (4.6 m)
Disc area: 1,662 ft² (154.4 m²)
Empty weight: 6,789 lb (3,079 kg)
Max takeoff weight: 11,900 lb (5,397 kg)
Powerplant: 2× Pratt & Whitney Canada PT6T-3BE Twin-Pac turboshafts, 900 shp (671 kW) each
Fuselage length: 43 ft (13.1 m)
Performance
Maximum speed: 140 knots (161 mph, 259 km/h)
Cruise speed: 122 knots (140 mph, 226 km/h)
Range: 402 nmi (463 mi, 745 km)
Service ceiling: 20,000 ft (6,096 m)
Rate of climb: 1,350 ft/min (6.86 m/s)
Power/mass: 0.2663 hp/lb (437 W/kg)
The Version of Bell 412 :
-Personal Transportation

-Search And Rescue

-Offshore Operation

-Medical Support/Ambulance Mission

-Oil Industry Operations

-Military Missions

-Law Enforcement Operations
,ETC

Bell 412 version Indonesia Aerospace (IAe)

The NBELL-412 is a medium size 15-places turbine powered helicopter incorporating a four bladed rotor system.

The advanced designed rotor system permits smooth and quiet operations with the advanced of being able to fly at high speed.

The standard 412 is certified in accordance with FAA-FAR Part-29 Transport Category Rotorcraft, and it is qualified for day or night operation under visual flight conditions.

With cruise speed of 130 knots and range of up to 402 nautical miles, the NBELL-412 will be a particularly desirable aircraft for transport mission, providing a fast, efficient fuel consumption, reliable, low direct operation cost, as its low risk design priorities : High safety, Low Maintenance, High availability and Low Cost of Operation.

With more than 5,405 pounds (2,452 kilograms) internal use load capacity plus a cabin with wide doors for easy loading makes the NBELL-412 ideal for rough terrain construction task, and to supply remote area jobs sites. For increased work handling versatility, it boosts exceptional hot-high altitude operating characteristic.


The Version of Bell 412 and Nbell-412 :
-Personal Transportation

-Search And Rescue

-Offshore Operation

-Medical Support/Ambulance Mission

-Oil Industry Operations

-Military Missions

-Law Enforcement Operations
,ETC


Operators :
Algeria
Bangladesh
Bolivia
Botswana
Canada
see CH-146 Griffon
Chile
Colombia
Ecuador
El Salvador
Eritrea
Gabon
Ghana
Guyana
Jamaica
Jamaica Defence Force
Honduras
Indonesia
Indonesian Air Force
Indonesian Army
Indonesian Navy
Iran
Italy
Lesotho
Mexico
Netherlands
Royal Netherlands Air Force
Nigeria
Norway
Royal Norwegian Air Force
Pakistan
Pakistan Army
Panama
Peru
Philippines
Philippine Air Force
Poland
Saudi Arabia
Slovenia
Slovenian Air Force and Air Defence
South Korea
Republic of Korea Air Force: First introduction Time : March, 1982.
Sri Lanka
Sri Lanka Air Force
Sweden
Swedish Army
Thailand
Royal Thai Air Force
Uganda
United Arab Emirates
United Kingdom
Royal Air Force
Venezuela
Zimbabwe
Air Force of Zimbabwe
and others country.