The aircraft was designed to comply with the Fédération Aéronautique Internationale microlight rules, US light-sport aircraft rules and UK BCAR Section "S". It features a cantilever low-wing, a two-seats-in-side-by-side configuration enclosed cockpit, fixed or retractable tricycle landing gear and a single engine in tractor configuration. The aircraft is made with carbon fibre sandwich construction. The cockpit width is 1.15 m (45 in). Standard engines available are the 100 hp (75 kW) Rotax 912ULS, the Rotax 912iS[4] and the 115 hp (86 kW) Rotax 914 four-stroke powerplants. A glider towhook is optional equipment. The aircraft is supplied as a complete ready-to-fly-aircraft. The design has been developed into a three to four seat aircraft, the Aerospool WT10 Advantic. Variants Microlight version Base model with gross weight of 450 kg (992 lb) and 75 litres (16 imp gal; 20 US gal) fuel capacity for the European microlight category. LSA version Model with gross weight of 549.7 kg (1,212 lb) and 98 litres (22 imp gal; 26 US gal) fuel capacity for the US light-sport aircraft category. Standard empty weight is 299.5 kg (660 lb), useful load 250.5 kg (552 lb), range 1,397 km (868 mi). Dynamic Club EASA Type Certified Model in Restricted airworthiness category to meet Certification Specification CS-LSA, two-seats with fixed landing gear and powered by a Rotax 912 ULS2. Specificatons below are for the WT9 Dynamic European microlight version. For more extensive performance data,, click here.