[1] The all-wood Akar was a cantilever monoplane with a three-part wing built around twin spars.
These each had longitudinal straight upper and curved lower chords interconnected by short oblique web members and were braced together by three transverse struts.
A forward cross-axle extending beyond the fuselage frames gave the large wheels a wide track and the upward-curving lower chords acted as skids to prevent nose-overs.
[1][2] Though most of the gliders entered into the contest had not flown before its opening, the Akar had made its first flight on 24 August 1923, piloted by the designer's brother, Tadeusz.
[1] After the crash, the glider was redesigned by Stanisław Prauss as the Akar II, with a rectangular section, ply-covered fuselage and a new empennage.