Aircraft overview

The Rutan Cozy is a plans-built, amateur-built composite canard aircraft developed from the Rutan Long-EZ concept and refined by designer Nat Puffer through Co-Z Development. The original Cozy first flew in the early 1980s, followed by the larger Cozy Mark IV, which became the best-known version for buyers seeking four seats. It is not a factory-produced type-certificated aircraft; each example was individually built, making build quality and documentation central to value. The Cozy matters in the used experimental market because it combines efficient high-speed cross-country performance, a distinctive pusher-canard layout, and relatively practical cabin capacity compared with many two-seat Rutan-derived designs.

Performance & specifications

Most buyer interest centers on the Cozy Mark IV. Typical cruise performance is commonly in the 160-175 knot range, depending on engine, propeller, weight, cooling drag, and finish quality. Range is often quoted around 800-1,000 nautical miles in efficient cruise configurations, though installed fuel capacity and power setting vary by aircraft. The Mark IV design uses a gross weight of about 2,050 lb, with useful load often near 900-1,000 lb depending on empty weight and equipment. Service ceiling is generally cited around 18,000 ft. Common powerplants are Lycoming O-320 and O-360 series engines, with the 180 hp O-360 a frequent choice; some examples use experimental engine installations, which should be evaluated carefully.

Cabin & avionics

The Cozy Mark IV has four seats in a compact cabin: two front seats side by side and two rear seats. Earlier Cozy variants are smaller and should not be assumed to offer the same cabin utility. Entry is via a forward-hinged canopy, and baggage space is limited compared with conventional four-seat aircraft. Visibility is good, but cockpit ergonomics, ventilation, heating, noise control, and rear-seat comfort depend heavily on individual construction and modifications. Avionics are not standardized. Older aircraft may have analog instruments and basic radios, while upgraded examples may feature Garmin G3X, Dynon SkyView, Advanced Flight Systems, modern GPS navigators, ADS-B, engine monitors, and autopilots. Garmin Perspective and G1000 suites are not typical for the Rutan Cozy.

Buying & value

Condition and builder quality drive Rutan Cozy values more than model year. Buyers should review build logs, weight-and-balance data, operating limitations, flight-test records, maintenance history, and any deviations from plans. Particular attention should be paid to composite workmanship, fuel system integrity, landing gear, canard and elevator configuration, cooling performance, engine installation, propeller condition, and control-system rigging. Common upgrades include electronic flight displays, modern engine monitoring, improved ignition, wheel pants, refined cooling, and higher-quality interiors. In the used market, the Rutan Cozy is positioned as an efficient experimental cross-country aircraft for buyers comfortable with owner-maintained composite designs rather than a conventional certified four-seater.