The AERFER Sagittario I (AKA Ambrosini Sagittario) was an Italian aerodynamical test airplane based on the Ambrosini S.7 Freccia (Arrow).
New wooden swept wings were added to the fuselage. The swept was of 45º. It was powered by a Turbomeca Marboré engine of 3.7Kn thrust. The inlet was at the nose of the fuselage and the exhaust was at the bottom, under the cockpit. As the original landing gear of the S.7 was retained, a special shielding was added to the rear wheel in order to protect it from the exhaust fumes.
It flew for the first time on 5th January 1953. It was the base for the much refined Sagittario II
Sources:
Wikipedia
Aviastar
