MSW Votec 221

The MSW Votec 221 is a single engine, single seat kitbuilt light-sport aircraft, designed and built in Switzerland.

Votec 221
Role Single seat homebuilt light-sport aircraft
National origin Switzerland
Manufacturer MSW Aviation

Design and development

The Votec 221 is a single seat, low wing monoplane, designed for engines in the power range 90-180 kW (120-240 hp). The first prototype, completed in 2009, has a 157 kW (210 hp) Lycoming AEIO-390 flat-four engine and the second, finished the following year, a 134 kW (180 hp) engine. MSW's numerical designation has two digits indicating power in hp/10, followed by the number of seats, suggesting an optimum 220 hp power unit.[1]

Externally, the Votec 221 resembles a scaled down (span, 80%) MSW Votec 351. It has low aspect ratio straight tapered wings with blunt, almost square tips. Ailerons are assisted by external spades. The empennage is also straight tapered, with a forward set tailplane mounted on top of the fuselage, far enough forward on the fin to require only a small cut-out for movement of the deep rudder. Both elevators have trim tabs and the rudder is horn balanced. The cockpit, placed over the wing, is covered with a single piece, starboard hinged canopy. Like the Votec 351, the 321 has a conventional undercarriage. The mainwheels are mounted on curved, sprung cantilever legs and enclosed by long fairings. It has a steerable tailwheel on a long cantilever.[1]

Operational history

The first prototype is Swiss-registered and the second German, the latter appearing at Aero 2011, held at Friedrichshafen that April.[1] First flight dates were not released by late 2011 but the first prototype was certainly flying by late May 2012.[2] A full scale non-flying mock up has also been exhibited.[1]

Variants
MSW One
Version for the US one design class with a 220 hp (164 kW) Lycoming IO-360 engine.[3][4]

Specifications

Data from Jane's All the World's Aircraft 2012-13[1]

General characteristics

  • Capacity: One
  • Length: 5.66 m (18 ft 7 in)
  • Wingspan: 5.85 m (19 ft 2 in)
  • Wing area: 7.10 m2 (76.4 sq ft)
  • Empty weight: 420 kg (926 lb)
  • Max takeoff weight: 600 kg (1,323 lb)
  • Powerplant: 1 × Lycoming AEIO-390 flat-four engine, 160 kW (210 hp)
  • Propellers: 3-bladed MT-Propeller MTV-12-B-C.C183-17e, 2.03 m (6 ft 8 in) diameter (diameter from[5])

Performance

  • Range: 1,398 km (869 mi, 755 nmi)
  • g limits: 10/-10
  • Wing loading: 84.54 kg/m2 (17.32 lb/sq ft) maximum

gollark: Oh well.
gollark: If I ever read another one of those, I shall complain at it.
gollark: Yep!
gollark: It was just poorly implemented on site but got much more use.
gollark: The concept isn't hard.

References
  1. Jackson, Paul A. (2012). Jane's All the World's Aircraft : development & production : 2012-13. IHS Global. pp. 614–5. ISBN 978-0-7106-3000-1.
  2. "Votec 221 on YouTube". Retrieved 20 August 2012.
  3. Bayerl, Robby; Martin Berkemeier; et al: World Directory of Leisure Aviation 2011-12, page 111. WDLA UK, Lancaster UK, 2011. ISSN 1368-485X
  4. Tacke, Willi; Marino Boric; et al: World Directory of Light Aviation 2015-16, page 118. Flying Pages Europe SARL, 2015. ISSN 1368-485X
  5. "MT Propellers - hydraulic". Retrieved 19 August 2012.
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