The Swift S-1 is a single seat aerobatic glider manufactured by Polish company Swift Ltd. Edward Margański, Jerzy Cisowski and Jerzy Makula developed the Swift at Bielsko-Biała from the SZD-21-2b Kobuz 3.
The glider is made of glass-fibre epoxy composite.
It is very strong (stressed for plus and minus 10g) and manoeuvrable (a roll takes less than 4 seconds).
Larger tips to increase the span to 15m were designed but not made.
Data from [1]General characteristics Performance