OSKBES MAI-208
| {{Infobox Aircraft Begin
| name=MAI-208 | image= | caption= }}{{Infobox Aircraft Type | type=Ultralight autogyro | national origin=Russia | manufacturer=OSKBES Moscow Aviation Institute (MAI) | designer= | first flight=remaining unflown in May 2010 | introduced= | retired= | status= | primary user= | more users= | produced= | number built= | program cost= | unit cost= | developed from= | variants with their own articles= }} |
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 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 driven by a Rotax 912 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 with its fuselage-mounted, rear leaning legs. The autogyro's two-blade rotor is mounted on a mast largely within a wide 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
{{Aircraft specs
|ref=Jane's All the World's Aircraft 2011/12
|prime units?=met
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|capacity=two
|length m=5.30
|length note=fuselage
|height m=2.90
|height note=overall, flight configuration
|aspect ratio=
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|empty weight kg=220
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|max takeoff weight kg=550
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|eng1 number=1
|eng1 name=Rotax 912S
|eng1 type=
|eng1 kw=73.5
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|prop blade number=3
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|rot number=1
|rot dia m=10.0
|rot area sqm=78.54
|rot area note=2-blade
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|max speed kmh=160
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|stall speed kmh=50
|stall speed note=minimum speed in level flight
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- Take-off run: 100 m (330 ft)
- All performance figures are estimates
}}
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References
{{reflist|refs=
[http://www.airliners.net/photo/MAI-208/1584769/M/ MAI-208 at MAKS09]
}}
{{OSKBES aircraft}}