IMPA Tu-Sa explained

The IMPA Tu-Sa, (IMPA - Industrias Metalúrgicas y Plasticas Argentinas S.A.), named as Impa Tu-Sa-O in the Flight reference,^[1] was a civil trainer developed in Argentina in the 1940s for aeroclub use. It was a conventional, low-wing monoplane with wide-track fixed tailwheel 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When it became apparent that the defects could not be corrected without a complete redesign of the aircraft, they were withdrawn from use.

References

Bibliography

• Book: Taylor, Michael J. H. . Jane's Encyclopedia of Aviation . 1989 . Studio Editions . London . 534 .
• Book: Gunston, Bill. World Encyclopedia of Aircraft Manufacturers . 1993 . Naval Institute Press . Annapolis . 156 .
• Green . William . Argentina's Industry . . 17 February 1949 . 198, 199 & 203 . 2008-05-08.

Notes and References

1. Green . William . Argentina's Industry . . 17 February 1949 . 198, 199 & 203 . 2008-05-08.