The GM-01 Gniady represents a specialized chapter in Polish experimental aviation, designed specifically to serve as a glider-towing aircraft. The project was developed between 1988 and 1989 under the direction of engineer Edward Margański. Rather than being a conventional clean-sheet design, the Gniady is characterized as a "frankenplane" concept. This designation stems from its unique construction, which synthesized parts from two existing PZL aircraft: the PZL-110 Koliber and the PZL-104 Wilga.
Because the GM-01 Gniady was a unique experimental project rather than a mass-produced aircraft, there is no record of a serial production run. The available research does not identify a specific manufacturing company or factory responsible for the airframe's production, naming only Edward Margański as the designer. Consequently, only one verifiable aircraft was produced, identified by the registration SP-YBN.
Due to its status as a one-off prototype, comprehensive technical specifications are largely absent from the available records. There is no verified data regarding the aircraft's engine model, horsepower, dimensions, or specific performance metrics. While the ICAO type designator GM01 is associated with the aircraft, a full technical manufacturer dossier is not available in the provided sources.
In terms of operational history, the Gniady was intended for civilian use as a tow plane for gliders and did not enter military service or commercial passenger operations. The sole surviving example, known as the "Gniady Pegasus," was eventually acquired by the Polish Aviation Museum, where it serves as a testament to the unusual and specialist light-aircraft designs emerging from Poland in the late 1980s.