;IA 35 Type 1A :Advanced instrument or navigation
trainer, powered by two
IA 19R El Indio radial engines. ;IA 35 Type 1B :Bomber version of the Type 1A, armed with 2x Browning machine guns, racks for bombs up to and rails for 4x rockets underwing. ;IA 35 Type 1U :Bombing and gunnery trainer, powered by two 750hp (559kW) IA 19SR1 El Indio radial engines. ;IA 35 Type II :
Light transport version with a crew of three and seven passengers, powered by two IA 19R El Indio radial engines. ;IA 35 Type III :
Air ambulance version with a crew of three and four stretchers with attendants, powered by two IA 19R El Indio radial engines. ;IA 35 Type IV :Photographic reconnaissance version with crew of three and camera operator, powered by two IA 19R El Indio radial engines. ;IA 35-X-III Pandora :Civil transport version with room for ten passengers, powered by two 750hp (559kW) IA 19SR1 El Indio radial engines. ;
IA Constancia II :initial designation of the Guarani I, with
Turbomeca Bastan turboprops. ;
IA 35 Guarani I ;
IA 50 Guarani II ==Surviving aircraft==