Brantly B-2

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Brantly B-2
Brantly B2B.JPG
Brantly B2B on display at the Helicopter Museum (Weston).
Role Light Helicopter
Manufacturer Brantly Helicopter Corporation
Designer Newby O. Brantly
First flight 21 February 1953
Introduction 1958
Status In production (2011)[1]
Number built 334
Unit cost
$170,000 in 2003 [2]

The Brantly B-2 is an American two-seat light helicopter produced by the Brantly Helicopter Corporation.

Design and development[edit]

After the failure of his first design, the Brantly B-1, Newby O. Brantly decided to design a simpler and less complicated helicopter for the private buyer. The B-2 had a single main rotor and an anti-torque tail rotor and first flew on 21 February 1953. This was followed by an improved second prototype that first flew on 14 August 1956.

The B-2A was introduced with a modified cabin, and the B-2B had a larger 180hp fuel-injected engine. The B-2B has a three-bladed articulated main rotor and an all-metal fuselage, it can be operated with skid, wheel or float landing gear. The piston engine is fitted vertically in the fuselage behind the cabin.

Operational history[edit]

The basic design has remained in production for over 50 years.[1] The United States Army evaluated the B-2 (designated the YHO-3) in 1958, although it was not ordered. Introduced in the early 1970s, an improved larger version with five seats was designated the Brantly 305.[3]

Variants[edit]

The unbuilt Brantly B2J10 10-seat transport helicopter. Was to be powered by two Allison 250-C18 or two Boeing 550-1-12C engines.
  • Brantly B-2 – Two-seat single-engined light utility helicopter.
    • Brantly YHO-3 – United States military designation for the B2.
  • Brantly B-2A – Initial production version.
  • Brantly B-2B – Improved version, fitted with new metal rotor blades, and an uprated fuel-injected 180hp Lycoming piston engine.
  • Brantly 305 – Larger five-seat version.
  • H-2 – Designation of the B-2B built by Brantly-Hynes between 1976 and 1979.
  • Brantly B-2J10 – Projected tandem-rotor version with longer and wider fuselage for carrying passengers and/or cargo. Unbuilt.
  • V750 UAV - An UAV version developed by Qingdao Haili Helicopters Co. Ltd., a joint venture between Brantly International Inc, Qingdao Wenquan International Aviation Investment Co., Ltd, and Qingdao Brantly Investment Consultation Co., Ltd.[4] Maiden flight was completed in May 7, 2011, and received an order from unnamed customer[5]

Operators[edit]

Military Operators[edit]

  •  United States
    • United States Army - acquired five B-2s for evaluation under the designation YHO-3 in the late 1950s. Operated H-5T unmanned variant as target from 1986.[6]

Accidents and incidents[edit]

The B-2 has had 21 fatal accidents between February 1964 and August 2009.[7]

Survivors[edit]

A B2B belonging to the Flying Gyrocopter and Old Aircraft museum at Midden-Zeeland, Netherlands was reportedly about to fly again November 2009.[8]

Specifications (B-2B with skid landing gear)[edit]

Data from Jane's All The World's Aircraft 1976-77 [9]

General characteristics

Performance

See also[edit]

Related lists

References[edit]

  1. ^ a b Bayerl, Robby; Martin Berkemeier; et al: World Directory of Leisure Aviation 2011-12, page 189. WDLA UK, Lancaster UK, 2011. ISSN 1368-485X
  2. ^ http://www.aviastar.org/helicopters_eng/brantly_b-2.php. 
  3. ^ Frawley, Gerard. The International Directory of Civil Aircraft. Aerospace Publications Pty Ltd, 1997 ISBN 1-875671-26-9
  4. ^ [1]
  5. ^ [2]
  6. ^ Harding 1990, pp. 73–74.
  7. ^ "R44 Accident Database". Griffin Helicopters. Retrieved 30 January 2010. 
  8. ^ FlyPast, November 2009, p.17
  9. ^ Taylor 1976, p.252.
  10. ^ Overall length
Bibliography

Further reading[edit]

  • The Illustrated Encyclopedia of Aircraft (Part Work 1982-1985). London: Orbis Publishing.
  • Aviation Week, 1965
  • British-built Brantlys? FLIGHT, 30 January 1959

External links[edit]