- IMPA Tu-Sa
__NOTOC__ Infobox Aircraft
name=Tu-Sa
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type=Civil trainer
national origin=Argentina
manufacturer=IMPA
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first flight=17 April avyear|1943
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number built=ca. 25
variants with their own articles=The IMPA Tu-Sa was a civil trainer developed in Argentina in the 1940s for aeroclub use. It was a conventional, low-wing monoplane with wide-track fixed failwheel undercarriage. In service, the aircraft demonstrated a number of serious and fundamental design flaws that led to a series of accidents and pilots joking that Tu-Sa stood for "Todo Un Sarcófago Aéreo" ("Altogether an aerial coffin"). When it became apparent that the defects could not be corrected without a complete redesign of the aircraft, they were withdrawn from use.aerospecs
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