The Adaro 1.E.7 Chirta was a Spanish military trainer aircraft built shortly before the outbreak of the Spanish Civil War.

Design and development

Designed in 1934 in response to a

Spanish Air Force , colours = , colours_label = , march = Spanish Air and Space Force Anthem , mascot = , anniversaries = 10 December , equipment ...

requirement as part of its modernisation programme, the Chirta was a conventional

sesquiplane A biplane is a fixed-wing aircraft with two main wings stacked one above the other. The first powered, controlled aeroplane to fly, the Wright Flyer, used a biplane wing arrangement, as did many aircraft in the early years of aviation. While a ...

, constructed of wood and metal and seating the student and instructor in tandem open cockpits. Slightly tapered wings had ailerons only on the upper wings; unusually, these covered the full span. Fuel was carried in an upper wing tank. There was a cut-out in the trailing edge of the upper wing for better upward visibility from the rear seat; the front seat was under the wing. A triangular fin carried a slightly rounded, unbalanced rudder. The tailskid undercarriage had faired wheels on V-form main legs. The Chirta was intended to undertake fighter training and to be fully aerobatic. Though the exact date of the first flight of the Chirta is not known, by early July 1935 it was flying and sufficiently developed to have taken part in competitive trials for the trainer contract. It was evaluated against the Gil-Pazó GP-1 and

Hispano E-34 The Hispano-Suiza E-34, later renamed Hispano HS-34, was a Spanish single engine, tandem seat biplane, designed as a basic trainer. Twenty five were ordered by the ''Aeronáutica Naval'', but only five had been completed when the Spanish Civil ...

but was ranked third, so no production contract was awarded. No further examples were built, though the prototype survived undamaged until at least November 1936, when Francoist forces captured Cuatro Vientos, where the trials had taken place.

Specifications

References

{{reflist, refs= {{cite book , title= Aircraft of the Spanish Civil War, last=Howson, first=Gerald, year=1990, publisher=Putnam Aeronautical Books, location=London , isbn=0-85177-842-9, page=35 {{cite journal , date=23 May 1935, title=L'avions-école de Adaro "1.E-7", journal=Les Ailes , issue=727, pages=3, url=http://gallica.bnf.fr/ark:/12148/bpt6k6553882b/f3 {{cite journal , date=18 July 1935, title=Un concours d'avion-école , journal=Les Ailes , issue=735, pages=9, url=http://gallica.bnf.fr/ark:/12148/bpt6k6553890w/f9 1930s Spanish military trainer aircraft Sesquiplanes