The Air Force, with former Luftwaffe officers as consultants and with the European teams that Perón had brought, also began to develop its own aircraft e.g. the I.Ae. 27 Pulqui I and I.Ae. 33 Pulqui II. These manufactures made Argentina the first country in Latin America and the sixth in the world to develop jet fighter technology on its own. Other Argentina-developed, twin-engine aircraft include the I.Ae. 35 Huanquero, the I.Ae 22 DL advanced trainer, the I.Ae 24 Calquín bomber, the trainer, the bi-motor combat fighter I.Ae. 30 Ñancú, the assault glider I.Ae. 25 Mañque, as well as rockets and planes for civilian use (like the FMA 20 El Boyero).