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Until when did the I-115 fly in the Spanish Air Force?

Short answer

Until 1976: the I-115, redesignated E.9 in the Spanish Air Force, was in service from 1956 to 1976. About 200 aircraft were delivered, 150 of them already by spring 1956. It was a military development of the civilian side-by-side two-seat I-11.

Published: November 1, 2026 · Updated: November 1, 2026 · Edited by Above Ten Thousand · Editorial policy

Until when did the I-115 fly in the Spanish Air Force?
¿Hasta cuándo voló el I-115 en el Ejército del Aire?Toyocada (CC BY SA), vía commons

A Military Derivative of the I-11

The AISA I-115 was a military development of the I-11, the single-engine civilian two-seater with side-by-side seating. It inherited the tailwheel landing gear from the production version of the I-11. Like that aircraft, it had an all-wood structure and most of its surfaces were plywood-covered. Its engine was a 112 kW (150 hp) ENMA Tigre inverted inline engine. The first prototype flew on 20 June 1952.

From EE.6 to E.9

The I-115 entered service with the Spanish Air Force in 1956. At first the aircraft were known as type EE.6, standing for Escuela Elemental (Elementary School), but when that category disappeared the I-115 was redesignated E.9, the E standing for Entrenamiento (Training). About 200 I-115s were delivered to the Spanish Air Force, 150 of them already by spring 1956.

Twenty Years of Service

Under the designation E.9, the type remained in service until 1976.

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