While the Lisa Akoya meets most of the LSA specifications, it is not an aircraft for the average recreational pilot or member of this forum. For a 480,000 euro (A$716,000) single engine, two seat aircraft, it's a bit rich for those other than the Elon Musk/Jeff Bezos group. The LISA Akoya is a French single-engine light aircraft, seating two in side-by-side configuration. It is an amphibious aircraft capable of alighting on land, water or snow without adaptation. It has a high-aspect-ratio electrically-folding wing, with trailing edge extensions rather than flaps, and a rear-mounted tractor configuration engine. The LISA Akoya (Akoya is a species of pearl oyster) is an innovative light aircraft designed to operate from land, water or snow without adaptation and incorporating a wing of variable area. Some other features are also unusual: it has a wing which folds for transportation by horizontal rotation through almost 90° and a single engine mounted high on the fin in tractor configuration. It is built entirely from carbon-fiber-reinforced polymer composites. The cantilever wings of the Akoya have an aspect ratio of about 18:1, very high for a powered aircraft. They have constant chord apart from the angled tips. Instead of conventional hinged flaps, the inner 2⁄3 of the trailing edge can be extended rearwards, exposing new fabric surface stored within the wing in roller blind fashion. Fully extended for landing and half extended for take-off, these surfaces provide a large increase in wing area. Conventional ailerons are fitted outboard. High mounted, the wings attach at a rotatable fairing on the highest point of the fuselage, allowing the rotation for storage. The fin and rudder together form a swept, short and parallel chord surface which carries at its top both the tailplane in T-tail configuration and the engine. The tailplane, like the wing, is of high aspect ratio and has full span elevators. The engine is a 73.5 kW (98.6 hp) Rotax 912 ULS flat four, driving a three bladed tractor propeller. The Akoya's fuselage is pointed at the nose and almost circular at its greatest diameter. In elevation it has a curved underside and, above, the large one piece canopy over the side-by-side, dual control cabin forms an unbroken line with the fuselage. There is an electrically operated retractable undercarriage of the taildragger variety, with the main gear legs rotating backward and inwards into the fuselage, and the tailwheel arm rotating forward. All wheels have hydraulic brakes. Operation from water, without a planing bottom or floats, is performed undercarriage up on the round fuselage underside with the aid of a pair of fixed hydrofoils, called shark-fins, sharply tapered planes set at about 50° to the vertical just outboard of the mainwheels. Small tip floats are an option for better lateral stability on water. The Akoya, it is claimed by the manufacturer, can also land on snow, though skis are an option. For more information on development and operational history, click here. And for the mega-rich,
