The Koala is a mainly metal construction low-wing monoplane with a swept-back single fin and powered by a 75 hp (56 kW) VW/Limbach engine. It has a fixed tricycle landing gear and an enclosed cabin for two side-by-side. Further three and four seat variants were also developed, and others with different engines have also been built in the Czech Republic by Evektor and Aertotechnik, and in Italy by SG Aviation. Variants P.220S Koala Two-seats side-by-side and powered by a 75 hp (56 kW) VW/Limbach engine. P.230S Panda Three-seat variant with a 100 hp (75 kW) Continental O-200 engine. P.240S Saiga Four-seat variant with a 180 hp (134 kW) Lycoming engine. P.250S Xerus Two-seat tandem seat variant of the Koala, not exactly the same size and has a one-piece canopy rather than a two-piece as other variants. P.270S Amster Four-seat variant like the P.240S but with a 150 hp (112 kW) Lycoming engine.