Aerotécnica AC-14
Encyclopedia
The Aerotécnica
AC-14 was a Spanish five-seat light helicopter of the 1950s, designed by Jean Cantinieau, based on enlarging his Nord Norelfe design.
The AC-14 continued the Cantinieau practice of mounting the engine forward of the main rotor, and like the Norelfe, used the ducted exhaust from the turboshaft to counter the torque of the main rotor at low speeds, while at high speeds the exhaust gases were deflectred rearwards to increase speed, torque being compensated for by movable twin tail fins.
The first of prototype flew on 16 July 1957. A pre-production order for ten machines was placed by the Spanish Air Force
where they served for a short time under the designation EC-XZ-4. No full production ensued, as they were much more expensive than the second hand Bell 47 G-2 and G-3 (leftover of the Korean War).
Nord Norelfe
Comparable aircraft:
Designation sequence:
AC-11 -
AC-12
-
AC-13 -
AC-14 -
AC-21
Aerotécnica
Aerotécnica was a Spanish aircraft manufacturer established in Madrid in 1954 to develop Jean Cantinieau's helicopter designs. After manufacturing small numbers of the AC-12 and AC-14, the firm ceased trading in 1962.-Aircraft:* Aerotécnica AC-11...
AC-14 was a Spanish five-seat light helicopter of the 1950s, designed by Jean Cantinieau, based on enlarging his Nord Norelfe design.
The AC-14 continued the Cantinieau practice of mounting the engine forward of the main rotor, and like the Norelfe, used the ducted exhaust from the turboshaft to counter the torque of the main rotor at low speeds, while at high speeds the exhaust gases were deflectred rearwards to increase speed, torque being compensated for by movable twin tail fins.
The first of prototype flew on 16 July 1957. A pre-production order for ten machines was placed by the Spanish Air Force
Spanish Air Force
-The early stages:Hot air balloons had been used with military purposes in Spain as far back as 1896. In 1905, with the help of Alfredo Kindelán, Leonardo Torres y Quevedo directed the construction of the first Spanish dirigible in the Army Military Aerostatics Service, created in 1896 and located...
where they served for a short time under the designation EC-XZ-4. No full production ensued, as they were much more expensive than the second hand Bell 47 G-2 and G-3 (leftover of the Korean War).
Specifications
Related content
Related development:Nord Norelfe
Comparable aircraft:
Designation sequence:
AC-11 -
AC-12
Aerotécnica AC-12
- Related content :Related development:Comparable aircraft:Designation sequence:AC-11 -AC-12 -AC-13 -AC-14 -AC-21...
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AC-13 -
AC-14 -
AC-21