KNAPP EDWARD· ICAO24 a82d0a· last seen 26d ago

N626FF is a Van's Aircraft RV-4, a single-engine piston aircraft operated by KNAPP EDWARD. SkyMeter has tracked 270 flights totalling 102 hours of airtime via ADS-B across 2 callsigns. The most frequent segment is KZPH to KFXE. Service window in our records spans 385 days. Of those flights, 28 (10.4%) 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
270
all time
FLOWN HOURS
102
tracked time
📍
AIRPORTS VISITED
49
unique
📡
CALLSIGNS
2
69 routes
📅
SERVICE PERIOD
06/07/2025 → 06/28/2026
first → last
INCIDENT RATE
10.4%
28 flagged

Top routes

By flight count

10
7
5
3
3
3
3
2
2
2

Flight numbers

Most-flown by this airframe

2

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 N626FF

50
06/28/2026
20m
△ Low approach-stability score
06/28/2026
11m
No alerts
06/27/2026
1h 6m
No alerts
04/30/2026
16m
No alerts
04/30/2026
15m
No alerts
04/28/2026
23m
No alerts
04/24/2026
10m
No alerts
04/24/2026
18m
No alerts
04/23/2026
15m
No alerts
04/23/2026
22m
No alerts
04/17/2026
18m
No alerts
04/17/2026
12m
No alerts
04/15/2026
1h 5m
No alerts
04/11/2026
21m
No alerts
04/11/2026
15m
No alerts
04/10/2026
59m
No alerts
04/03/2026
1h 1m
No alerts
03/26/2026
1h 8m
No alerts
03/23/2026
21m
No alerts
03/23/2026
21m
No alerts
03/21/2026
56m
No alerts
03/15/2026
22m
No alerts
03/15/2026
23m
No alerts
03/09/2026
1h 4m
No alerts
03/08/2026
21m
No alerts
03/08/2026
12m
No alerts
03/06/2026
18m
No alerts
03/06/2026
22m
No alerts
11/22/2025
8m
No alerts
11/22/2025
24m
No alerts
11/22/2025
59m
No alerts
11/11/2025
11m
No alerts
11/11/2025
4m
No alerts
11/11/2025
1h 0m
No alerts
11/10/2025
58m
No alerts
11/06/2025
9m
No alerts
11/06/2025
1h 3m
No alerts
11/05/2025
42m
△ Low approach-stability score
10/27/2025
7m
No alerts
10/27/2025
12m
No alerts
10/27/2025
1h 5m
No alerts
10/26/2025
5m
No alerts
10/26/2025
23m
No alerts
10/26/2025
19m
No alerts
10/24/2025
17m
No alerts
10/24/2025
13m
No alerts
10/23/2025
1h 2m
△ Low approach-stability score
10/20/2025
27m
No alerts
10/20/2025
5m
No alerts
10/20/2025
3m
No alerts
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