Remarks: The Aerotec 122 (T-23 military version) is a plane for two crew members, for training. The first prototype (PP-ZTF) flew in 1965. The following planes have undergone significant modifications to meet the needs of the Ministry of Aviation, which acquired more than 70 planes for the Brazilian Air Force Academy in 1969.
This one (registration "PP-ZTT") is the second prototype, equipped with a Lycoming O-320-A 150 hp, 4 cylinder horizontally opposed.
