HUBBART STEPHEN B· ICAO24 a36cee· last seen 12d ago

N32KX is a Van's Aircraft RV-4, a single-engine piston aircraft operated by HUBBART STEPHEN B. SkyMeter has tracked 30 flights totalling 19 hours of airtime via ADS-B. The most frequent segment is KS70 to KPSC. Service window in our records spans 29 days. The Van's Aircraft RV-4 has a maximum takeoff weight of 1,500 lb, light wake category.

About the Van's Aircraft RV-4

The Van's RV-4 is a tandem two-seat homebuilt aircraft that established Van's Aircraft as the dominant force in kit aviation when it debuted in 1979. Designed by Richard VanGrunsven, the RV-4 was the first Van's model to achieve widespread success, combining aerobatic capability with cross-country efficiency in a package that amateur builders could complete in their garages. Its all-metal construction, proven Lycoming engine installations (typically 150-180 hp), and docile handling made it the template for the entire RV series that followed.

The type pioneered the concept of a "serious" homebuilt—an aircraft that could outperform many certified designs while remaining accessible to first-time builders. With a cruise speed around 180 knots and a roll rate exceeding 120 degrees per second, the RV-4 delivered fighter-like agility at a fraction of the cost. Though production plans ceased in 2003 when Van's shifted focus to the side-by-side RV-6 and later models, the RV-4 remains highly regarded in the experimental aircraft community for its honest aerobatic manners and efficient cross-country performance.

Its tandem seating and narrow fuselage give it a distinctly military aesthetic that appeals to builders seeking a sportier cockpit experience than the RV-6's side-by-side configuration offers. SkyMeter has tracked flights across airframes and operators, with the largest observed operator.

FLIGHTS
30
all time
FLOWN HOURS
19
tracked time
📍
AIRPORTS VISITED
8
unique
📡
CALLSIGNS
1
11 routes
📅
SERVICE PERIOD
05/26/2026 → 06/24/2026
first → last
INCIDENT RATE
0.0%
0 flagged

Top routes

By flight count

8
2
2
1
1
1
1
1
1

Flight numbers

Most-flown by this airframe

1

Aircraft specifications

Van's Aircraft RV-4

Engines
Single Piston
Vref (approach)
65 kt
MTOW
1,500 lb
Wake category
L

Recent flights

Newest 15 operations of N32KX

15
06/24/2026
16m
No alerts
06/24/2026
1h 1m
No alerts
06/23/2026
43m
No alerts
06/23/2026
28m
No alerts
06/22/2026
37m
No alerts
06/22/2026
1h 55m
No alerts
06/09/2026
3m
No alerts
06/08/2026
1h 18m
No alerts
06/03/2026
19m
No alerts
06/02/2026
16m
No alerts
06/02/2026
26m
No alerts
05/27/2026
36m
No alerts
05/27/2026
19m
No alerts
05/27/2026
22m
No alerts
05/26/2026
51m
No alerts
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