The AC4 was designed to comply with the Fédération Aéronautique Internationale microlight rules and US light-sport aircraft rules. It features a strut-braced high-wing, with "V"-struts and jury struts, a two-seats-in-side-by-side configuration enclosed cockpit, fixed tricycle landing gear and a single engine in tractor configuration.[1] [2]
The aircraft is made from a combination of composites and aluminum sheet, with its tailboom made from a single large diameter aluminium tube and the wings and tail surfaces covered in aluminium. Its 9.451NaN1 span wing has an area of 16.65m2, is supported by V-struts and mounts flaps. The standard engine available is the 1000NaN0 Rotax 912ULS or Rotax 912iS four-stroke powerplant.[1] [2] [4]
The AC4 can accommodate one pilot and one passenger and was also designed for aero-towing gliders. It can also accommodate a stretcher for Medevac missions. It received European European Aviation Safety Agency type certification to the Certification Specification for Light Sport Aeroplanes (CS-LSA) on 6 August 2015.[5] [1] [2]