AISA I-115
| AISA I-115 | |
|---|---|
|
|
| Type: | two-seat trainer aircraft |
| Design country: | |
| Manufacturer: |
AISA (Aeronáutica Industrial SA) |
| First flight: | |
| Commissioning: |
1956 |
| Production time: |
1954 - |
| Number of pieces: |
450 |
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The AISA I-115 was a two-seat trainer aircraft made by the Spanish manufacturer Aeronáutica Industrial SA in the 1950s.
development
The AISA I-115 was the military variant of the single-engine civilian training aircraft I-11, which was designed with side-by-side seats in 1948. The first I-11 flew in 1951 and was intended to replace the outdated Bücker Jungmann trainers . The aircraft was designed by Iberavia and built by AISA. Iberavia was later bought by AISA. However, the Spanish Air Force preferred tandem seats for its trainer aircraft, so the I-11 was developed into the I-115. The I-115 inherited the tail wheel landing gear of the production version of the I-11, which was sold as the I-11B, but had a longer fuselage. In addition, the machine had a slightly larger wingspan and was much heavier. These changes required more power, so a 112 kW (150 hp) ENMA Tigre in-line engine was installed in the I-115, the only engine of this class available in Spain at the time. The first prototype flew on June 16, 1952. The aircraft was built in Carabanchel , near Cuatro Vientos .
construction
As cantilever low-wing aircraft designed I-115 had a monocoque hull in wood construction . The one-piece wing with two spars was also made entirely of wood, with the plywood planking able to absorb some of the forces. Only ailerons and flaps were covered with fabric. The wing had a depth of 1.96 m at the root , which decreased to 0.98 m at the tip. The V-position was 6 °, the setting angle 3 °. The ailerons were differential operated and lowered when the slotted landing flaps were lowered. The rudder was almost rectangular. The elevators were more tapered and provided with trim tabs. The tandem cockpits were closed with a long glass hood, which had independent sections for both teachers and students. All displays were duplicated and also contained the instruments for blind flight training. The fixed tail wheel landing gear was uncovered, the tail wheel was steerable.
commitment
Over 200 I-115s were delivered to the Spanish Air Force, 150 of them in the spring of 1956. At that time there was an order for another 150 copies. Allegedly up to 450 pieces should have been produced. They were initially known as Type EE-6, EE means Escuela Elemental or Basic Training, but when the category was renamed the I-115 was referred to as E-9 (according to other sources as E.6, E stands for Entrenamiento or Trainer) . The E-9 was in service from 1956 to 1976, but was never able to replace the CASA 1.131, which was only finally retired in 1988 ( Bücker Jungmann built under license ), but was operated in parallel. Despite the long period of use, there was regular criticism of its flight behavior and its heavy weight: the soldiers called the aircraft "Garrapata" (tick) because it tended to be very difficult to detach from the ground, its host, when taking off . Some late models were therefore equipped with the de Havilland Gipsy Major engine (145 hp) and others with the Lycoming O-435 -A (190 hp).
Many I-115s were sold to civilians at the end of their military service, some are currently in museums and historic aviation clubs and are being restored.
Military users
Technical specifications
| Parameter | Data |
|---|---|
| crew | 2 |
| length | 7.34 m |
| span | 9.53 m |
| height | 2.08 m |
| Wing area | 14.00 m² |
| Empty mass | 610 kg |
| Max. Takeoff mass | 990 kg |
| Cruising speed | 204 km / h |
| Top speed | 230 km / h |
| Service ceiling | 4300 m |
| Range | |
| Engines | a piston engine ENMA Tigre G-IV-B with 150 PS (approx. 110 kW) |
See also
literature
- Nikolaus Krivinyi: Taschenbuch der Luftflotten 1976, JF Lehmanns, Munich 1976, ISBN 3-469-00511-7
- Leonard Bridgman (ed.): Jane's All The World's Aircraft - 1959-60, Sampson Low, Marston & Company Ltd., London, 1959
Web links
Individual evidence
- ↑ Krivinyi, N.: Taschenbuch der Luftflotten 1976, p. 388
- ^ Leonard Bridgman (Ed.): Jane's All The World's Aircraft - 1959-60 , Sampson Low, Marston & Company Ltd., London, 1959, p. 226
- ^ News , in Airplane Monthly, September 2002, p. 8
- ↑ AISA I-115 Garrapata ( Memento from May 2, 2010 in the Internet Archive ) ( English )