KNAPP EDWARD· ICAO24 a82d0a· last seen 8d ago

N626FF is a Van's Aircraft RV-4, a single-engine piston aircraft operated by KNAPP EDWARD. SkyMeter has tracked 336 flights totalling 126 hours of airtime via ADS-B across 2 callsigns. The most frequent segment is KZPH to KFXE. Service window in our records spans 496 days. Of those flights, 18 (5.4%) 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
336
all time
⏱
FLOWN HOURS
126
tracked time
📍
AIRPORTS VISITED
56
unique
📡
CALLSIGNS
2
81 routes
📅
SERVICE PERIOD
6/7/2025 → 10/17/2026
first → last
⚠
INCIDENT RATE
5.4%
18 flagged

Top routes

By flight count

10
9
4
4
3
3
3
3
3
3

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
10/17/2026
15m
No alerts
10/17/2026
11m
No alerts
10/17/2026
55m
No alerts
10/13/2026
21m
△ Low approach-stability score
10/13/2026
11m
No alerts
10/3/2026
17m
No alerts
10/3/2026
19m
No alerts
9/20/2026
15m
No alerts
9/20/2026
10m
No alerts
9/17/2026
27m
△ Low approach-stability score
9/17/2026
18m
No alerts
9/13/2026
11m
△ Low approach-stability score
9/12/2026
5m
No alerts
9/12/2026
12m
No alerts
9/12/2026
17m
No alerts
9/6/2026
16m
No alerts
9/6/2026
17m
No alerts
9/1/2026
19m
No alerts
8/25/2026
33m
No alerts
8/25/2026
30m
No alerts
8/25/2026
25m
No alerts
8/25/2026
13m
No alerts
8/24/2026
11m
No alerts
8/24/2026
36m
No alerts
8/24/2026
8m
No alerts
8/24/2026
37m
No alerts
8/24/2026
15m
No alerts
8/20/2026
16m
No alerts
8/20/2026
27m
No alerts
8/16/2026
30m
No alerts
8/16/2026
14m
No alerts
8/13/2026
1h 0m
No alerts
8/11/2026
38m
No alerts
7/22/2026
16m
No alerts
7/22/2026
25m
No alerts
7/22/2026
17m
No alerts
7/22/2026
18m
No alerts
6/28/2026
20m
△ Low approach-stability score
6/28/2026
11m
No alerts
6/27/2026
1h 6m
No alerts
4/30/2026
16m
No alerts
4/30/2026
15m
No alerts
4/28/2026
23m
No alerts
4/24/2026
10m
No alerts
4/24/2026
18m
No alerts
4/23/2026
15m
No alerts
4/23/2026
22m
No alerts
4/17/2026
18m
No alerts
4/17/2026
12m
No alerts
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