The OSKBES MAI-208 is a single-engine, two-seat autogyro, designed and built in Russia, which utilises the fuselage of the MAI-223 ultralight. It had been completed but not flown by spring 2010.

Design and development

Work on the MAI208 began in 2006. It first appeared in public at

HeliRussia 250px, Bell 407, HeliRussia 2009 HeliRussia is Russia's first International exhibition of Helicopter Industry held in Moscow, Russia at Crocus Expo exhibition center. The first show, HeliRussia 2008, was held on May 15–17 2008. The world a ...

2009 and was also seen at MAKS-09 and HeliRussia in May 2010, though it was still unflown. It retains many of the features of the fixed wing MAI-223, having a three-blade tractor

propeller A propeller (colloquially often called a screw if on a ship or an airscrew if on an aircraft) is a device with a rotating hub and radiating blades that are set at a pitch to form a helical spiral which, when rotated, exerts linear thrust upon ...

driven by a

Rotax 912 The Rotax 912 is a horizontally-opposed four-cylinder, naturally aspirated, four-stroke aircraft engine with a reduction gearbox. It features liquid-cooled cylinder heads and air-cooled cylinders. Originally equipped with carburetors, late ...

flat-four piston engine. The two aircraft share most of the fuselage, including its cabin, side by side seating and large, glazed side doors as well as the

conventional undercarriage Conventional landing gear, or tailwheel-type landing gear, is an aircraft undercarriage consisting of two main wheels forward of the center of gravity and a small wheel or skid to support the tail.Crane, Dale: ''Dictionary of Aeronautical Term ...

with its fuselage-mounted, rear leaning legs. The autogyro's two-blade rotor is mounted on a mast largely within a wide

chord Chord may refer to: * Chord (music), an aggregate of musical pitches sounded simultaneously ** Guitar chord a chord played on a guitar, which has a particular tuning * Chord (geometry), a line segment joining two points on a curve * Chord ( ...

fairing, though with a significant part exposed below the rotor head. The other differences are in the empennage; the MAI-208 has a straight edged, slightly tapered tailplane and elevators with a cutout for rudder movement but the swept vertical surface of the MAI-223 was replaced by a small triangular fin carrying an almost semicircular rudder. By HeliRussia 2010 this had been reworked, with a wider chord, round topped rudder and a long fin/ fillet with an almost horizontal upper edge. The first flight was originally scheduled for 2009, then revised to 2010, though it remained unannounced at HeliRussia 2010.

Specifications

References

{{OSKBES aircraft 2010s Russian civil aircraft Single-engined tractor autogyros