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Bell Aircraft Corporation Model 47H Bellairus

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... an enclosed sound-proofed cabin with car-size leather seats and leather trim. The baggage could be accommodated in a compartment in the monocoque tail boom. ... – PowerPoint PPT presentation

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Title: Bell Aircraft Corporation Model 47H Bellairus


1
Bell Aircraft Corporation Model 47H Bellairus
  • Bell Aircraft Corporation, founded by
    Lawrence Bell in 1935, is famous for being the
    manufacturer of the P-59 which was America's
    first jet airplane and the X-1 for being the
    world's first super-sonic plane. With the
    development of the Bell 47 their reputation for
    helicopter manufacture soon began to rival their
    status as a builder of conventional aircraft and
    in 1951 created a separate helicopter division
    headquartered in Fort Worth, Texas. In 1960 the
    Bell Helicopter Corporation was purchased by
    Textron, of which it is still a major subsidiary.
  • For many years pioneers like Floyd Carlson,
    Joe Mashman, Arthur Young and Dick Stansbury
    developed their early helicopters in a disused
    car dealership in Buffalo, New York. By May 1946
    they concluded flight tests in NC-1H, an early
    Model 47, which was to be the first helicopter
    permitted under US Federal Licence to carry
    passengers for "hire and reward" commercially.
    The Bell 47 went on to become the worlds first
    practical helicopter in both commercial and
    military roles. The most well-known use of Bell
    47s came during the Korean War when the
    helicopters were used by the United States Army
    Mobile Army Surgical Hospital, MASH, to evacuate
    wounded soldiers. By the time production stopped
    in 1973 over 6,000 Bell 47s had been produced and
    many are still in use across the world. Today a
    Bell 47 hangs in the entrance to the Architecture
    and Design wing of New York's Museum of Modern
    Art.
  • Larry Bell himself commissioned the
    development of the Model 47H, also know as
    Bellairus, which remained his personal favourite
    of all the many variants produced. The
    three-seater Bell 47H was the deluxe version of
    the Model 47G having an enclosed sound-proofed
    cabin with car-size leather seats and leather
    trim. The baggage could be accommodated in a
    compartment in the monocoque tail boom. However,
    the initial purchase price and ongoing
    maintenance meant it was too expensive for its
    target market the affluent American family. It
    was not a commercial success and only 33 were
    ever built.
  • The model presented here is a 1/9th scale
    replica of the Bell 47H. There are no
    commercially available kits of this model so many
    components have been scratch built after a
    considerable amount of research and development.
    The chassis is based upon a custom made set of
    carbon frames designed around the popular .30
    class two stoke motors and 55cm main blades. The
    canopy and dummy saddle tanks are made of
    fibreglass while the tail fairing is vac formed
    out of styrene to keep weight to a minimum.
    Interesting features to note include the
    intricate and strong undercarriage and the kicked
    up tail boom which is characteristic on all Bell
    47s. Further information about the development
    of this radio controlled model can be found at
    www.nicherotors.com.
  • Model details Carbon main blades
    NHP Scale 1/9
  • Rotor headĀ  Quick UK Gear ratio 9.62515.5
  • EngineĀ  OS .32 Dry weight 3.6Kg
  • Radio Futaba

The first helicopter to be approved for civilian
use NC-1H a 47B
Larry inspecting the inside of a 47H
Main Rotor 35 ft., 1 in.
First Flight 1954
Max Speed 100 mph
Engine 1 x 200 shp Franklin 6V4-200 C32
Length 41 ft., 5 in.
Height 9 ft., 3 in.
Loaded Weight 2,350 lbs.
Empty Weight 1,502 lbs.
Colour scheme of prototype
2
Bell Aircraft Corporation Model 47H Bellairus
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