All these composites are well known for their durability and strength-to-weight ratios, Cordeau said. "On all of these composites, there is a resin that makes all the composites match a nautical usage. The carbon-fiber-reinforced plastic has the best strength/weight ratio."
The AKOYA's mechanical parts are made of aluminum and titanium. Most of the subsystems have parts made of aluminum, including the flight controls, landing gear, and flap actuating systems. Those made of titanium include some parts of the king pin wing and some fitting bolts, he said. All mechanical parts are treated against corrosion.
The design results in an aircraft that weighs only 410kg (903lb), including its standard equipment and instrumentation package, which consists of an emergency airframe parachute, folding wings, an electrically operated canopy, and retractable landing gear equipped with skis. The skis fit inside the fuselage during flight and can be removed during summer.
LISA Airplanes is developing a HY-BIRD version of the AKOYA that will use a combination of solar energy and electric batteries. During its first test flight, it will use only batteries recharged through solar cells to validate the technology and the integration of new electrical components into the plane's design.
Watch a video of the AKOYA in action here