AMA motor-glider
type of aircraft
The AMA, named after its designers, was a one-off motor glider built in Poland in the mid-1930s. Its development was abandoned after early tests revealed incurable engine-mounting vibration problems.
Development
Until the mid-1930s, the Polish government had supported amateur aeronautical activity. The end of this support forced designers to consider low cost powered gliders and other small, low powered, structurally simple aircraft. The AMA, a powered glider designed by Andrzej Anczutin, Henryk Malinowski and Rościslaw Aleksandrowicz from the Warsaw Technical University, was one of many such designs.
Its first flight, made in August 1935 and piloted by Szczepan Grzeszczyk, was as a glider towed by an RWD 8. It was first flown under its own power by Aleksander Onoszko on 13 September 1935. Over the next two days it was flown by Kazimierz Chorzewski in displays celebrating the start of the Warsaw-based 23rd Gordon-Bennett Championships.
These flights revealed two significant problems: stability and engine vibration. The former was reduced by empennage modifications, but the latter proved incurable.
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This entry incorporates text from “AMA motor-glider” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.