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Brantly B-2B helicopter

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Specifications Comment this helicopter
Picture B-2B
General
Manufacturer Brantly
Type B-2B
Introduced 1/1/1958
In production? Yes
Units produced 0
Price US $ 200,000.00
Dimensions
Overall Length 28 ft
Length 21.1 ft
Height 6.92 ft
Width 0 ft
   
   
Description In 1945, the inventor Newby O. Brantly founded the Brantly Helicopter Corporation. Inspired by the Sikorsky VS-300 prototype, he started working on the Brantly B-1. However, this machine never reached the market, as its coaxial rotorhead design was too complicated and heavy. Nevertheless, the design proved to be useful when it came to acquiring the know-how that was used to create the lightweight, two seater Brantly B-2 model.

This model has a conventional design with its main and tail rotor configuration. The main rotor blades use a double set of flapping hinges, one near the rotorhead and the other at approximately 40% of the chord length. This construction gives the B-2 a smooth ride.

In 1958, the US army ordered five B-2 models, which were designated as the YHO-3. However, they were sent back after the army decided that the machines were too small for military purposes.

The B-2B version has been produced for more than six decades now. This clearly demonstrates its strong design, which still appeals to a small but loyal customer base.

During its lifetime, the B-2B design and production licences have changed hands many times. At the time of writing (2014), the machine is manufactured by Qingdao Haili Helicopters Co. Ltd.
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Design features
  • Gear driven rotor
  • Stressed skin construction
  • Two section doubly articulated main rotor blade. Outboard blade is fully articulated, the inboard blade uses a flapping hinge only
Description
In 1945, the inventor Newby O. Brantly founded the Brantly Helicopter Corporation. Inspired by the Sikorsky VS-300 prototype, he started working on the Brantly B-1. However, this machine never reached the market, as its coaxial rotorhead design was too complicated and heavy. Nevertheless, the design proved to be useful when it came to acquiring the know-how that was used to create the lightweight, two seater Brantly B-2 model.

This model has a conventional design with its main and tail rotor configuration. The main rotor blades use a double set of flapping hinges, one near the rotorhead and the other at approximately 40% of the chord length. This construction gives the B-2 a smooth ride.

In 1958, the US army ordered five B-2 models, which were designated as the YHO-3. However, they were sent back after the army decided that the machines were too small for military purposes.

The B-2B version has been produced for more than six decades now. This clearly demonstrates its strong design, which still appeals to a small but loyal customer base.

During its lifetime, the B-2B design and production licences have changed hands many times. At the time of writing (2014), the machine is manufactured by Qingdao Haili Helicopters Co. Ltd.
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Design features:
  • Gear driven rotor
  • Stressed skin construction
  • Two section doubly articulated main rotor blade. Outboard blade is fully articulated, the inboard blade uses a flapping hinge only
Performance
Persons 2
Max. Range 200 mi
Cruise Speed 90 mph
Max. Speed 100 mph
Max. rate of Climb 1400 ft/min
HOGE ceiling 0 ft
Service Ceiling 6000 ft
Gross Weight 1670 lb
Empty Weigt 1070 lb
Useful Load 600 lb
Dynamic system
Fuel Capacity 31 gallons
Number of Engines 1
Engine Type Piston, fuel injected
Engine Code Lycoming IVO 360A
Horse Power 180
Rotorhead Double-articulated
Number of rotorblades 3
Rotor Diameter 23.8 ft
Number of tail rotorblades 2
Tailrotor Diameter 0 ft
Blueprints & model
Manufacturer Website manufacturer..
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HeliStart is authored by Peter Goossens.


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