NANNA WHITNEY B· ICAO24 a022a0· last seen 12h ago

N108CB is a Van's Aircraft RV-4, a single-engine piston aircraft operated by NANNA WHITNEY B. SkyMeter has tracked 14 flights totalling 4 hours of airtime via ADS-B. The most frequent segment is K58M to K58M. Service window in our records spans 424 days. Of those flights, 6 (42.9%) 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
14
all time
FLOWN HOURS
4
tracked time
📍
AIRPORTS VISITED
5
unique
📡
CALLSIGNS
1
7 routes
📅
SERVICE PERIOD
06/29/2025 → 08/28/2026
first → last
INCIDENT RATE
42.9%
6 flagged

Top routes

By flight count

7
1
1
KXLL N43
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 7 operations of N108CB

7
08/28/2026
27m
No alerts
08/28/2026
15m
No alerts
08/28/2026
17m
No alerts
08/28/2026
8m
△ Low approach-stability score
08/17/2026
10m
△ Low approach-stability score
06/29/2025
35m
No alerts
06/29/2025
20m
△ Low approach-stability score
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