Our Design Organisation offers you a wide range of services. We are approved for Minor Changes, Minor Repairs and Major Changes STC CS-VLR Very Light Rotocraft, CS-27 Small Rotorcraft, CS-29 Large Rotorcraft CS-VLA Very Light Aeroplane, CS-LSA Light Sport Aeroplane, CS-23 Normal Category Aeroplane, CS-25 Large Aeroplane Please click here to take a look at our flight test campaign summary video of our customer ENTROL.