Cozy Aircraft Cozy Iv (COZY)
ICAO COZY Light Piston

Cozy Aircraft Cozy Iv

Single Piston

The Cozy is a four-seat homebuilt aircraft that emerged in the 1980s as Nat Puffer's answer to Burt Rutan's two-seat Long-EZ. Retaining the distinctive canard configuration and composite construction of its predecessor, the Cozy stretched the fuselage to accommodate a second row of seats while preserving the efficient aerodynamics and cross-country capability that made Rutan's designs legendary among experimental builders. The aircraft is sold as plans and requires builders to fabricate components from fiberglass, foam, and epoxy, a process that typically takes several thousand hours but results in an airplane with remarkable fuel efficiency and cruise speeds around 180 knots on a modest 180-horsepower Lycoming engine. What sets the Cozy apart in the homebuilt world is its combination of true four-seat capacity with Long-EZ performance, a rare achievement in the experimental category where most fast aircraft sacrifice useful load for speed. The canard foreplane provides natural stall resistance (the forward wing stalls before the main wing, automatically pitching the nose down for recovery), making the design famously docile despite its unconventional appearance. The pusher propeller configuration keeps the engine noise behind the cabin and eliminates the need for a complex retractable gear, contributing to the type's reputation for low maintenance and high dispatch reliability among owner-builders. SkyMeter has tracked 57 flights across 29 airframes and 27 operators, with COZY 4 ADVENTURE LLC the largest observed operator.

ACTIVE AIRFRAMES
29
last 7 days
🏢
OPERATORS
27
unique airlines
📊
FLIGHTS
57
tracked
AVG DURATION
46m
per flight
INCIDENT RATE
12.3%
7 flagged

Safety in context

The incident rate counts flights with ANY safety event detected by SkyMeter: go-arounds (a routine response, not a failure), unstable-approach gate flags (advisory thresholds), rejected takeoffs (the system working as designed), and runway events. It is NOT an accident rate or fatality rate. For accident statistics, refer to the NTSB Aviation Accident Database (USA) or the Aviation Safety Network. See methodology for what each event type measures.

Performance

Speed envelope & approach

Vref
70 kt
Vref range
Vmo
Mmo
Vne
200 kt
Vno
170 kt
Vs1 (clean)
58 kt
Vs0 (landing)
53 kt
Vfe
90 kt
Approach category

Dimensions

Airframe geometry

Wingspan
Length
Tail height
Wheelbase
Gear width
Wake category
L

Weight & identification

Operating limits

MTOW
1,450 lb
MALW
Manufacturer model
COZY IV
FAA designator
Registered

Recent incidents

Flagged flights of COZY

20
08/23/2026
1h 26m
△ Low approach-stability score
08/23/2026
1h 0m
△ Low approach-stability score
08/22/2026
30m
△ Low approach-stability score
08/22/2026
1h 28m
△ Low approach-stability score
08/21/2026
21m
△ Low approach-stability score
08/20/2026
21m
△ Low approach-stability score
08/17/2026
1h 51m
△ Low approach-stability score
08/16/2026
37m
△ Low approach-stability score
08/10/2026
40m
△ Low approach-stability score
08/10/2026
1h 24m
△ Low approach-stability score

Recent flights

Real flights of COZY · airborne ≥ 20 min

30
08/26/2026
28m
No alerts
08/26/2026
2h 5m
No alerts
08/26/2026
28m
No alerts
08/25/2026
23m
No alerts
08/25/2026
28m
No alerts
08/25/2026
42m
No alerts
08/25/2026
34m
No alerts
08/24/2026
35m
No alerts
08/24/2026
1h 0m
No alerts
08/24/2026
30m
No alerts
08/24/2026
1h 24m
No alerts
08/23/2026
1h 10m
No alerts
08/23/2026
24m
No alerts
08/23/2026
1h 26m
△ Low approach-stability score
08/23/2026
24m
No alerts
08/23/2026
1h 15m
No alerts
08/23/2026
1h 20m
No alerts
08/23/2026
30m
No alerts
08/23/2026
8h 10m
No alerts
08/23/2026
49m
No alerts
08/23/2026
1h 6m
No alerts
08/23/2026
1h 0m
△ Low approach-stability score
08/22/2026
30m
△ Low approach-stability score
08/22/2026
51m
No alerts
08/22/2026
31m
No alerts
08/22/2026
1h 7m
No alerts
08/22/2026
1h 58m
No alerts
08/22/2026
1h 28m
△ Low approach-stability score
08/22/2026
35m
No alerts
08/22/2026
22m
No alerts
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© SkyMeter · All flight data subject to ODbL attribution · Tracking window: 7 days (free tier)