Bell 212 Training Helicopter,

United Kingdom

CONTENT

• INTRODUCTION

• DESIGN

• COCKPIT

• ENGINE

• PERFORMANCE

INTRODUCTION

• The Bell 212 HP AH Mk is a military utility helicopter operated by theUK's Army Air Corps (AAC).

• It is a variant of the Bell UH-1 family of military helicopters. Bell 212helicopters are currently deployed in the forests of Belize and Brunei bythe AAC.

• The Bell 212 is built by Bell Helicopter Textron (BHT) in Fort Worth,Texas.

• They can carry substantial loads in hot and humid weather.

• A twin-engine configuration enhances safety, a factor that means themodel is popular with commercial operators in offshore oil and gasoperations.

DESIGN• The design is based on the Bell 205 and Huey UH-1 versions. It wasdeveloped by adding an extra engine to the single-engine Hueyvariant.

• The original teetering rotor system of the Huey was used for thenew design.

• Bell 212 has an overall length of 15.5m, a width of 14.6m and aheight of 3.9m. The rotor disk diameter is 14.6m.

• The empty weight of the aircraft is 2,961kg and the maximum take-off weight is 5,080kg.

COCKPIT• The cockpit was designed for single-pilot operations.• The Bell 212 can be configured to accommodate up to 14passengers.

• The seating arrangements for 13 passengers areprovided in cabin and one passenger can beaccommodated in the cockpit's left-hand side seat.

• The EVS system provides flight crews with originalimages of terrain, runways, aircraft and other objects.

• It uses real-time infrared sensors, signal processing andcockpit displays to improve visibility.

ENGINE• A Pratt and Whitney Canada PT6T-3 Twin-Pac powers the mainrotor. It consists of a combination of two PT6 power turbinesdriving a common gearbox.

• These engines can produce 1,342kW.

• Each engine can deliver 671kW for 30mins, or 571kW continuouslyduring the failure of the other engine to enable the 212 to managecruise speed at maximum payload.

• In the event of the failure of one turbine, the other operationalturbine can deliver its full 671kW output.

PERFORMANCE• The Bell 212 can cruise at a maximum speed of 130kt.

• It can fly at a maximum service altitude of 17,400ft.

• The range of the aircraft is 250nm and its rate of climbis 1,745ft per minute.

• The internal cargo capacity is 220ft³.

• The aircraft can carry an external load of 2,268 kg.

REFERNCE

•http://www.army-technology.com/projects/be

ll-212/

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