The I-11 was a two-seat civil utility aircraft manufactured in
Spain
, image_flag = Bandera de España.svg
, image_coat = Escudo de España (mazonado).svg
, national_motto = ''Plus ultra'' (Latin)(English: "Further Beyond")
, national_anthem = (English: "Royal March")
, i ...
in the 1950s. Originally designed by the Spanish aircraft company
Iberavia, its first (of two) prototype flew on 16 July
1951
Events
January
* January 4 – Korean War: Third Battle of Seoul – Chinese and North Korean forces capture Seoul for the second time (having lost the Second Battle of Seoul in September 1950).
* January 9 – The Government of the United ...
. It was a low-wing
monoplane
A monoplane is a fixed-wing aircraft configuration with a single mainplane, in contrast to a biplane or other types of multiplanes, which have multiple planes.
A monoplane has inherently the highest efficiency and lowest drag of any wing con ...
of conventional configuration with fixed, tricycle
undercarriage and a large,
bubble canopy
A bubble canopy is an aircraft canopy constructed without bracing, for the purpose of providing a wider unobstructed field of view to the pilot, often providing 360° all-round visibility.
The designs of bubble canopies can drastically vary; s ...
over the two side-by-side seats. Flight characteristics were found to be pleasing, but before plans could be made for mass production, Iberavia was acquired by
AISA.
The new management decided to continue with development, but made a few changes to the design, reducing the size of the canopy, and replacing the undercarriage with a
taildragger
Conventional landing gear, or tailwheel-type landing gear, is an aircraft undercarriage consisting of two main wheels forward of the center of gravity and a small wheel or skid to support the tail.Crane, Dale: ''Dictionary of Aeronautical Term ...
arrangement. This configuration entered production in
1952
Events January–February
* January 26 – Black Saturday in Egypt: Rioters burn Cairo's central business district, targeting British and upper-class Egyptian businesses.
* February 6
** Princess Elizabeth, Duchess of Edinburgh, becomes m ...
with an order from the Director General for Civil Aviation for 70 aircraft for use in Spain's aeroclubs. The
Spanish Air Force then ordered 125 for use in
training
Training is teaching, or developing in oneself or others, any skills and knowledge or fitness that relate to specific useful competencies. Training has specific goals of improving one's capability, capacity, productivity and performance. I ...
and liaison roles.
The Air Force then requested 200 aircraft built with the seats in tandem, which were designated
I-115
Interstate 115 (I-115) is a auxiliary Interstate Highway which connects I-15/ I-90 to Butte in the U.S. state of Montana. The highway is concurrent with I-15 Bus./ I-90 Bus. for its entire length. The highway travels from an incomplete in ...
by the manufacturers powered by a 112 kW (150 hp) ENMA Tigre inverted air-cooled engine.
Variants
;I-11: 2 prototypes by Iberavia, tricycle undercarriage
;I-11B: Production examples by AISA
;
AISA I-115: Tandem-seat version.
Operators
;
*
Spanish Air Force
Specifications (I-11B)
References
*
*
*
* {{cite book , last= Simpson , first= R. W. , title=Airlife's General Aviation , year=1995 , publisher=Airlife Publishing , location=Shrewsbury , pages=403–404
Fundació Aeronàutica Mallorquina website
I-011
Single-engined tractor aircraft
Low-wing aircraft
1950s Spanish civil utility aircraft
Aircraft first flown in 1951