Jane's Encyclopedia of Aviation
ICA-Brasov IS-28 - IS-33 (Romania)
Current sailplanes and motor gliders, including the IS-28B2 high-performance training sailplane; IS-28M two-seat motor glider; IS-29 single-seat Standard Class and Open Class sailplane (various wing spans available);
IS-30 Open Class sailplane developed from the IS-28B2; IS-31, version of the IS-29 with 20 m wings and interconnected flaps and ailerons; IS-32 18 m Open Class development of the IS-28B2; and IS-33, a version of the IS-29 type with 150 kg (300 lb) water ballast tanks, estimated to have the best glide ratio of 41.5 at 114km/h (71 mph).
ICA-Brasov IS-28 tandem two-seat training sailplane
IS-28B tandem two-seat high-performance training sailplane
Morisonics displayed the prototype IS-28BM2 motor-glider built by ICA-Brasov of Romania. Based on the IS-28 sailplane and powered by a 68 h.p. Limbach engine, its best engine-off glide angle is a remarkable 1:29.
Romanian motor-glider, ICA-Brasov IS-28BM2, YR-1013, with 68-h.p. Sportavia Limbach engine
IS-29B single-seat Standard Class sailplane produced by ICA-Brasov
IS-29D single-seat Standard Class sailplane produced by ICA-Brasov
IS-29E single-seat high-performance Open Class sailplane, with 17-6 m span all-metal wings
IS-29G, club version ot this design by Dipl Ing Silimon, with 16.5 m span all-metal wings
Three-view drawing of the IS-28B-M1 tandem two-seat powered sailplane, with scrap views showing the side-by-side seating and non-retractable landing gear of the IS-28B-M2 version