Airframe

The airframe is completely made of composite material which excels in its specific strength and excellent fatigue properties. The entire aircraft can be broken down into individual units, i. e., both halves of the wing and tail surfaces including stabilizers can be separated from the fuselage to ease aircraft transport.

Wing

Wing area has a modern laminar profil NACA HDF. This profile along with a slightly trapezoidal plan and precise surface quality have a significant interest in the high performance of the machine.

The aerodynamic design of the wing gives to the airplane good fall characteristics. The separation of air flow in the critical angle of slope happens at the root of the wing. This ensures good handling of the machine until it drops and symmetrically stalls.

The wing is a cantilever design with two cavities, which significantly increases the torsional strength. The flanges are made of carbon rowing. The cover of the wings is made of glass and carbon sandwiches, therefore there are no ribs in the wing.

The lift flaps are branch-type. Thanks to their large area, high efficiency and maintaining upper coating of the wing the stall speed of the airplane in landing configuration reaches value of 30 kts. Differential ailerons and flaps are controlled mechanically by a carbon rods.

The proof of effort to minimize aerodynamic resistance of the airframe is a technical solution of hinges and control rods of flaps and ailerons, which do not protrude from the profile of the wing.

The strain from each half of the wing is led away via two steel pins into the hull and through the cantilevers, which are mutually joined by pins to create a rigid unit.

The wing is fitted with two fuel tanks with a total volume of 90 or 120 liters. Each tank can be fitted with lockable lids.

Under the left half of the wing is the Pitot tube, which captures the total and static pressure for all flight instruments. There can be heated tube optionally.

Tail surfaces

The tail section is classical designed. The internal structure of the stabilizers is similar to the construction of the wings. Therefore the tail surfaces can be completely removed from the hull except the keel, which is its integral part.

The elevator trim tab is located on the right side. It is controlled mechanically by a wire. The rudder is controlled by steel ropes and elevator by carbon rods.