HUBBARD BENJAMIN L· ICAO24 aa6754· last seen 22h ago

N77GR is a Van's Aircraft RV-4, a single-engine piston aircraft operated by HUBBARD BENJAMIN L. SkyMeter has tracked 568 flights totalling 168 hours of airtime via ADS-B. The most frequent segment is KFOK to 42B. Service window in our records spans 503 days. Of those flights, 84 (14.8%) 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
568
all time
⏱
FLOWN HOURS
168
tracked time
📍
AIRPORTS VISITED
25
unique
📡
CALLSIGNS
1
46 routes
📅
SERVICE PERIOD
5/27/2025 → 10/12/2026
first → last
⚠
INCIDENT RATE
14.8%
84 flagged

Top routes

By flight count

10
KFOK → 42B
29
42B → KFOK
28
25
23
20
14
13
13
9
42B → KSNC
9

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 N77GR

50
10/12/2026
19m
No alerts
10/12/2026
21m
No alerts
10/11/2026
17m
No alerts
10/11/2026
10m
No alerts
10/10/2026
14m
△ Low approach-stability score
10/10/2026
3m
No alerts
10/10/2026
15m
No alerts
10/7/2026
15m
No alerts
10/7/2026
3m
No alerts
10/7/2026
12m
No alerts
10/7/2026
16m
No alerts
10/7/2026
14m
No alerts
10/6/2026
19m
△ Low approach-stability score
10/2/2026
23m
△ Low approach-stability score
10/2/2026
15m
No alerts
9/19/2026
4m
No alerts
9/18/2026
23m
No alerts
9/18/2026
21m
No alerts
9/15/2026
30m
No alerts
9/15/2026
20m
No alerts
9/11/2026
22m
△ Low approach-stability score
9/11/2026
15m
No alerts
9/5/2026
6m
No alerts
9/4/2026
22m
No alerts
9/4/2026
15m
△ Low approach-stability score
8/25/2026
26m
No alerts
8/25/2026
18m
No alerts
8/20/2026
33m
No alerts
8/20/2026
18m
No alerts
8/16/2026
10m
△ Low approach-stability score
8/16/2026
11m
No alerts
8/16/2026
10m
No alerts
8/12/2026
20m
No alerts
8/12/2026
2m
△ Low approach-stability score
8/12/2026
14m
No alerts
8/9/2026
3m
No alerts
8/9/2026
7m
No alerts
8/9/2026
19m
No alerts
8/4/2026
29m
No alerts
8/4/2026
22m
No alerts
8/4/2026
13m
No alerts
7/26/2026
25m
No alerts
7/26/2026
18m
No alerts
7/24/2026
22m
No alerts
7/24/2026
20m
No alerts
7/20/2026
27m
No alerts
7/20/2026
3m
No alerts
7/20/2026
14m
No alerts
7/18/2026
18m
No alerts
7/18/2026
15m
No alerts
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