HomeProductsGS Serie Engines GS Engines The GS serie engines are designed for high power density, low cost, easy maintenance, light weight. The compact design facilitates the integration into the canopy. For UAVs from 20 to 65 kg. E-70b2 For UAVs from 50 to 100 kg. E-110b2 For UAVs from 60 to 160 kg E-170b2 For UAVs from 100 to 250 kg. E-280b2