The Washington T-411 Wolverine is an American homebuilt aircraft that was produced by Washington Aeroprogress of Seattle, Washington, introduced in the 1990s. When it was available the aircraft was supplied as a kit or in the form of plans for amateur construction. Design and development Developed from the Russian Khrunichev T-411 Aist, the T-411 Wolverine features a strut-braced high-wing, a five-seat enclosed cabin with doors, fixed conventional landing gear with wheel pants and a single engine in tractor configuration. Like its Russian predecessor the T-411 Wolverine was designed for operations from unprepared surfaces. The aircraft is made from a mix of steel and aluminum, covered in doped aircraft fabric. Its span wing is supported by "V" struts and jury struts and has a wing area of . The cabin width is . The acceptable power range is and the standard engines used are the Vedeneyev M14P radial engine, the Continental IO-550 and the Lycoming O-540 horizontally opposed powerplants. The aircraft includes provisions for floats and skis. The T-411 Wolverine has a typical empty weight of and a gross weight of , giving a useful load of . With full fuel of the payload for the pilot, passengers and baggage is . The standard day, sea level, no wind, take off with a engine is and the landing roll is . The manufacturer estimated the construction time from the supplied kit as 1000 hours. Operational history By 1998 the company reported that 10 kits had been sold and were completed and flying. In May 2014 two examples were registered in the United States with the Federal Aviation Administration, although a total of three had been registered at one time. Specifications (T-411 Wolverine) References External links Photo of a Washington T-411 Wolverine T-411 1990s United States sport aircraft 1990s United States civil utility aircraft Single-engined tractor aircraft High-wing aircraft Homebuilt aircraft