HUBBART STEPHEN B· ICAO24 a36cee· last seen 8d ago

N32KX is a Van's Aircraft RV-4, a single-engine piston aircraft operated by HUBBART STEPHEN B. SkyMeter has tracked 112 flights totalling 93 hours of airtime via ADS-B. The most frequent segment is KPSC to KS50. Service window in our records spans 160 days. Of those flights, 10 (8.9%) carry at least one detected incident: a go-around, unstable approach, stall warning, or runway excursion. 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
112
all time
⏱
FLOWN HOURS
93
tracked time
📍
AIRPORTS VISITED
43
unique
📡
CALLSIGNS
1
48 routes
📅
SERVICE PERIOD
5/27/2026 → 11/3/2026
first → last
⚠
INCIDENT RATE
8.9%
10 flagged

Top routes

By flight count

10
2
2
2
2
1
1
1
30II → I19
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 50 operations of N32KX

50
11/3/2026
36m
No alerts
11/3/2026
52m
△ Low approach-stability score
10/21/2026
17m
No alerts
10/21/2026
16m
No alerts
10/21/2026
1h 0m
No alerts
10/13/2026
40m
No alerts
9/16/2026
26m
No alerts
8/10/2026
1h 29m
No alerts
8/10/2026
13m
No alerts
8/10/2026
1h 35m
No alerts
8/10/2026
25m
No alerts
8/9/2026
1h 26m
△ Low approach-stability score
8/9/2026
33m
No alerts
8/8/2026
1h 7m
No alerts
8/8/2026
3h 51m
No alerts
8/8/2026
29m
No alerts
8/8/2026
11m
No alerts
8/7/2026
54m
No alerts
8/7/2026
1h 26m
No alerts
8/6/2026
33m
No alerts
8/6/2026
1h 54m
No alerts
8/4/2026
51m
△ Low approach-stability score
8/4/2026
1h 28m
No alerts
8/4/2026
2h 21m
△ Low approach-stability score
8/3/2026
2h 4m
No alerts
7/31/2026
1h 6m
No alerts
7/31/2026
1h 23m
No alerts
7/31/2026
2h 13m
No alerts
7/29/2026
18m
No alerts
7/29/2026
1h 19m
No alerts
7/28/2026
7m
No alerts
7/28/2026
1h 17m
No alerts
7/23/2026
22m
△ Low approach-stability score
7/23/2026
41m
No alerts
7/21/2026
33m
⛨ TFR entry△ Low approach-stability score
7/21/2026
10m
No alerts
7/21/2026
17m
No alerts
7/21/2026
1h 19m
No alerts
7/20/2026
53m
No alerts
7/20/2026
19m
No alerts
7/20/2026
7m
No alerts
7/19/2026
26m
No alerts
7/13/2026
16m
No alerts
7/13/2026
8m
No alerts
7/13/2026
14m
No alerts
6/25/2026
16m
No alerts
6/24/2026
1h 1m
No alerts
6/23/2026
43m
No alerts
6/23/2026
28m
No alerts
6/23/2026
37m
No alerts
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