ATEC 122 ZEPHYR

This legendary and still popular double-seated cantilever low-winged ultralight aircraft of mixed construction with 3-wheeled fixed landing gear still retains its elegant aerodynamical design, although many constructional and technological modifications have been made since the first version was produced. In course of time the original aircraft design became a completely different. It still maintains its prominent possition on ultralight aviation market due to its strength quality and attractive design. In 2007 the original Zephyr 2000 was re-named to ATEC 122 ZEPHYR. More than 200 pieces of Zephyrs are successfully operated in many countries in the whole world. Since 2001 we offer lighter modifications of Zephyr 2000 taking advantage of carbon composites partially applied on its construction. Although its design, performance and spacious cockpit give the feeling of higher weight category aircraft, in fact it joins the ultralight category thanks to high quality carbon technology, which guarantees excellent strength characteristics. Maintaining high safety factors, this plane complies even with the most strict weight limits and regulations.

The main difference between Zephyr and Faeta is the wing structure, wing´s aerodynamical characteristics and construction materials. Zephyr´s wing profile is identical, but its construction is combined of fiberglass, wood and polyester fabric. The aircraft maintains high rigidity and performance, but different materials application makes the aircraft affordably priced which is usually a valuable advantage.

New additional small windows on both sides of fuselage provide better view and open space feeling. Lightweight, but rigid construction allows the plane to be equipped with a modern rescue parachute system. This very fast and manoeuvrable aircraft provides high comfort of spacious heated cockpit, which gives safety feeling to the crew seating side by side.

We pay attention to our client´s comfort and satisfaction, so we offer a large range of individual interior and exterior design modifications, optional equipment and individual custom dashboard instruments layout as it corresponds with client´s wishes, needs and user´s habits. Our intention is to let our client express his creative ideas applied on his own original design and configuration of his new machine. The cockpit is possible to adjust to pilot´s figure with adjustable seats and pedals.

Because of important advantage of low fuel consumption, our aircrafts can be effectively used not only for comfortable travelling, business trips, but actually also for towing gliders. ATEC planes are very popular in pilot schools due to their easy manoeuvrability and manipulation.

Technical description

The Wing

has a mixed cantilever construction with a UA-2 laminar-flow . The rectangular wing plane in the root area goes over into the tapered wing ended in a wing-tip. The main spar made of multi-layer reinforced wood is placed at a depth of 30% of the wing. The ailerons and flaps are suspended from the rear auxiliary spar. The leading edge is covered by a composite sandwich as far as the main spar. The rest of wing is covered by PES-fabric. The central framework welded from high-grade CrMo steel tubes is built in the fuselage.

The Fuselage

is a carbon-fibre shell braced by multi-layer wooden bulkheads. The cross-section is elliptic with pure wing fillets and a spacious cabin. The hinged perspex canopy can swing upwards and backwards. The engine which is in the front part of the fuselage is separated by the firewall, to which the engine bearer attachment and the steerable nosewheel are attached.

The Tail Unit

has a mixed construction made of glasscomposite and wood in T-shape. The tapered horizontal tail surface with an elevator is constructed in a way similar to that of a wing. The tapered vertical tail surface is a monolithic part of the fuselage shell. The rudder suspended from the last fuselage bulkhead is completely of glasscomposite.

The Landing Gear

is a fixed three-wheeled construction with a steerable nose wheel. The main gear is constructed as a pair of leaf springs of glass and carbon composites. The front leg is made of composites and metal tubes. The main wheels are equipped with brakes. The size of main tyres: 380x100 mm, while that of front tyre is 300x100 mm. All wheels have aerodynamic fairing.

The Control

Dual control of all the rudders. The ailerons, flaps and elevator are controlled through the control rods and levers, the rudder through the steel wire ropes. All the control attachments are situated within the airframe. The important checking points in the wings are equipped with inspection holes with a perspex covering.

The Engine

of standard option is ROTAX 912 UL 80 HP or ROTAX 912 ULS 100 HP that drives a FITI three or two blade propeller fix, ground adjustable or adjustable in flight. The engine mount is welded of the first-rate-quality CrMo steel tubes.

The Fuel System

consists of the fuel tank integrated in the fuselage and the piping convection equipped with a sediment bowl and a drain plug. The pressure of the fuel is measured by a fuel-pressure gauge.

Instrumentation

consists of basic flight, engine and navigation checking instruments. The static and dynamic pressure is taken from the Pitot tube attached below the port wing.

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Airplanes

• ATEC 321 Faeta
• ATEC 122 ZEPHYR
• ATEC 212 Solo