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1-2: V-50 mock-up

1-3: V-100 mock-up

By the final stages of the
competition in 1969, the
Kamov team offered a
radically new design
designated the V-50 combat
helicopter. The aircraft was to
have two rotors positioned
longitudinally along the
fuselage. The two rotors were
to rotate counterclockwise in
the same plane of motion with
the blade synchronization
preventing the blades from
colliding. The estimated speed
was 400 km/h.
In 1975-1976, the V-100
helicopter project was
proposed. This aircraft was to
feature laterally positioned
rotors with a push-type
propeller. Both the V-50 and V100 projects were very daring
for that time but both were
rejected in the end.

The design of the new Army
combat helicopter, designated V-80 (later, Ka-50), began at the Kamov Helicopter Plant
in January 1977. The program was run by the head of the design bureau, Chief Designer
Sergei Mikheyev, who was later to become Designer General.
Various aerodynamic
configurations were
considered for the future
helicopter; however, the
choice was made to use the
Kamov's coaxial configuration
due to its unique advantages.
The substantial reduction in
the power loss provided a
hefty increase in main rotor
thrust compared to a singlerotor configuration. This
resulted in a higher static
ceiling when the same powerlevel was used to power a
1-4: First version of design for the single
coaxial-rotor versus a singleseat combat helicopter V-80
rotor configuration. The
aerodynamic symmetry and
the lack of cross-linkages
within the flight control system helped simplify flying the helicopter. A coaxial helicopter
has fewer restrictions on side-slipping angles, angular speeds, and acceleration within the


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