At the beginning of 1950 the Aeronautics Minister (Brigadier Ojeda) makes Dr. Horten fly to Santa Rosa, where he explains the reasons of his call:
He wanted a transport that could arrive to Buenos Aires
with nourishment, capable of take - off from non prepared fields and land
in existent routes or ways that could be closed until the unload of the
aircraft was completed; using as auxiliary elements a platform and a simple
He thought that the task could be performed by a cargo glider with 10 tons of cargo capacity towed by a "Lancaster" bomber in low flying.
Dr. Horten suggested him that a motorized flying wing with S.T.O.L. capabilities would do a better job, and after some discussion, the I Ae 38 was born.
It is necessary to take into account that this proposal was not lack of sense in a country where routes, railroads and cold - storage equipment were not available yet to transport (in this occurrence oranges from Santa Rosa orange grooves*) nourishment that rotted before reaching an adequate destination.
airplane was basically a double sized Ho II ,completely metallic,
with a short boom that "hanged" from the wings and that had two cargo doors
at the rear that opened vertically (one could be used as cargo platform).
Both could be opened in flight to allow parachute drops. The store room
had a cargo capacity of 30 m3 with 15 m2 of area. The landing gear had
five wheels, two fixed in tandem at both sides of fuselage and a retractable
They were arranged and indexed in such a form that they could show the C.G. position after the cargo was completed.
The wing had a 36.5 degrees sweepback, with two vertical fins installed near the wing tips. Each fin had a rudder that moved only in the outboard direction with a servo tab, since it was found impossible to have hydraulic servo controls manufactured. The engines were placed into the wing structure, and drove two - blade "pusher" propellers by means of a short shaft. The cooling of each engine were attained by a small turbofan.
It was planned to equip the I Ae 38 with 4 "El Indio" engines of local manufacturing with 750 H.P. each one, but development trouble with them forced the use of 4 "El Gaucho" engines (too of local manufacturing) with 320 H.P. each one, thus limiting severely the final performance of the airplane.
I Ae 38 was flown (and not without difficulties) by Commandant Rogelio
Balado 10 years after the meeting of Dr. Horten and Brigadier Ojeda in
Due to the delays induced by two changes of government, and the disinterestedness of the new one, the project was canceled, the I Ae 38 scrapped; and Dr. Horten fired from F.M.A.
*: "Naranja" is the Spanish term for "orange". From this comes the nickname of "Naranjero" (the one that deals with oranges).
|Wingspan||32.00 m.||32.00 m.|
|Fuselage lenght||11.10 m.||11.10 m.|
|Height||3.95 m.||3.95 m.|
|Landing gear width||2.80 m.||2.80 m.|
|Wing area||133.00 m2||133.00 m2|
|Wing sweepback||36.5 degrees||36.5 degrees|
|Empty weight||7800 kg.||8000 kg.|
|Maximum weight||17500 kg.||20000 kg.|
|Payload||8000 kg.||10000 kg.|
|Maximum speed||252 km/h||320 km/h|
|Cruise speed||235 km/h||265 km/h|
|Landing speed||133 km/h||142 km/h|
|Ascentional speed (at maximum weight)||1.7 m./seg.||2.8 m./seg.|
|Service ceiling (at maximum weight)||2500 m.||4500 m.|
|Autonomy||5.6 hours||6.6 hours|
|Reach||1240 km.||1600 km.|