KOLSTAD DAVID L· ICAO24 a65085· last seen 6d ago

N506D is a Rutan Aircraft Factory VariEze, a single-engine piston aircraft operated by KOLSTAD DAVID L. SkyMeter has tracked 82 flights totalling 29 hours of airtime via ADS-B. The most frequent segment is KWHP to KWHP. Service window in our records spans 395 days. Of those flights, 2 (2.4%) carry at least one detected incident — go-around, unstable approach, stall warning, or runway excursion. The Rutan Aircraft Factory VariEze has a maximum takeoff weight of 1,050 lb, light wake category.

About the Rutan Aircraft Factory VariEze

The Rutan VariEze is a revolutionary homebuilt aircraft that introduced canard configuration and composite construction to the general aviation world in the mid-1970s. Designed by aerospace engineer Burt Rutan and sold as plans for amateur construction, the VariEze (pronounced "very easy") featured a radical layout with the horizontal stabilizer mounted ahead of the wing, a pusher propeller, and a sleek fiberglass fuselage that delivered exceptional fuel efficiency and cross-country performance. The design proved that composite materials and unconventional aerodynamics could produce a safe, fast, and economical aircraft accessible to homebuilders.

Powered typically by a Continental O-200 or similar four-cylinder engine of 100 horsepower, the VariEze achieved cruise speeds around 160-180 knots on just 4-5 gallons per hour, making it one of the most efficient aircraft ever built in terms of speed per fuel burn. Its tandem seating, low wing loading, and stall-resistant canard configuration gave it benign handling characteristics and the ability to operate from short runways. The type's influence extended far beyond homebuilding — Rutan's canard philosophy informed later designs including the Long-EZ, Beech Starship, and ultimately SpaceShipOne.

Though production was limited to plans distribution from 1975 to 1985, several hundred VariEzes were completed and many remain active today in the experimental aircraft community. The type demonstrated that innovative aerodynamics and materials could outperform conventional designs, inspiring a generation of homebuilders and professional engineers alike. SkyMeter has tracked flights across airframes and operators, with the largest observed operator.

FLIGHTS
82
all time
FLOWN HOURS
29
tracked time
📍
AIRPORTS VISITED
7
unique
📡
CALLSIGNS
1
8 routes
📅
SERVICE PERIOD
05/31/2025 → 06/30/2026
first → last
INCIDENT RATE
2.4%
2 flagged

Top routes

By flight count

7
27
2
1
1
1
1

Flight numbers

Most-flown by this airframe

1

Aircraft specifications

Rutan Aircraft Factory VariEze

Engines
Single Piston
Vref (approach)
70 kt
MTOW
1,050 lb
Wake category
L

Recent flights

Newest 41 operations of N506D

41
06/30/2026
26m
No alerts
06/30/2026
3m
No alerts
06/21/2026
1h 1m
No alerts
01/24/2026
7m
No alerts
01/23/2026
37m
No alerts
01/15/2026
42m
No alerts
01/15/2026
2m
No alerts
12/13/2025
7m
No alerts
12/13/2025
2m
No alerts
12/08/2025
7m
No alerts
12/07/2025
19m
No alerts
11/11/2025
32m
No alerts
10/25/2025
7m
No alerts
10/25/2025
26m
No alerts
10/25/2025
8m
No alerts
10/23/2025
13m
No alerts
10/23/2025
20m
No alerts
10/10/2025
19m
No alerts
10/10/2025
21m
No alerts
09/23/2025
18m
No alerts
09/23/2025
11m
No alerts
09/05/2025
40m
No alerts
08/23/2025
6m
No alerts
08/23/2025
6m
No alerts
08/23/2025
7m
No alerts
08/23/2025
8m
No alerts
08/20/2025
50m
No alerts
08/11/2025
1h 38m
No alerts
07/26/2025
7m
No alerts
07/26/2025
7m
No alerts
07/24/2025
40m
No alerts
07/24/2025
14m
No alerts
07/12/2025
35m
No alerts
07/03/2025
19m
No alerts
07/03/2025
22m
△ Unstable approach
06/28/2025
13m
No alerts
06/28/2025
8m
No alerts
06/28/2025
8m
No alerts
06/28/2025
7m
No alerts
06/24/2025
33m
No alerts
05/31/2025
28m
No alerts
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