TIME BUILDING LLC· ICAO24 adc540· last seen 6d ago

N987BB is a Van's Aircraft RV-4, a single-engine piston aircraft operated by TIME BUILDING LLC. SkyMeter has tracked 556 flights totalling 323 hours of airtime via ADS-B. The most frequent segment is KEUG to KUAO. Service window in our records spans 395 days. Of those flights, 156 (28.1%) carry at least one detected incident — 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
556
all time
FLOWN HOURS
323
tracked time
📍
AIRPORTS VISITED
53
unique
📡
CALLSIGNS
1
103 routes
📅
SERVICE PERIOD
05/31/2025 → 06/30/2026
first → last
INCIDENT RATE
28.1%
156 flagged

Top routes

By flight count

10
42
34
13
9
8
6
6
5
4
3

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 N987BB

50
06/30/2026
25m
△ Unstable approach
06/30/2026
9m
No alerts
06/30/2026
43m
No alerts
06/30/2026
43m
No alerts
06/22/2026
47m
△ Unstable approach
06/22/2026
41m
No alerts
06/19/2026
31m
No alerts
06/19/2026
33m
No alerts
06/18/2026
7m
No alerts
06/18/2026
33m
No alerts
06/18/2026
34m
No alerts
06/17/2026
35m
No alerts
06/17/2026
12m
No alerts
06/17/2026
32m
No alerts
06/17/2026
13m
△ Unstable approach
06/16/2026
43m
No alerts
06/16/2026
36m
No alerts
06/11/2026
15m
No alerts
06/11/2026
16m
No alerts
06/11/2026
14m
No alerts
06/10/2026
36m
No alerts
06/10/2026
33m
No alerts
06/07/2026
43m
No alerts
05/28/2026
33m
No alerts
05/28/2026
4m
No alerts
05/27/2026
15m
No alerts
05/27/2026
27m
No alerts
05/27/2026
19m
No alerts
05/27/2026
28m
No alerts
05/22/2026
10m
No alerts
05/22/2026
33m
△ Unstable approach
05/22/2026
8m
No alerts
05/22/2026
15m
No alerts
05/22/2026
47m
No alerts
05/22/2026
26m
No alerts
05/22/2026
3m
No alerts
05/22/2026
39m
No alerts
05/20/2026
33m
No alerts
05/19/2026
26m
No alerts
05/19/2026
25m
No alerts
05/18/2026
39m
△ Unstable approach
05/17/2026
29m
No alerts
05/17/2026
38m
△ Unstable approach
05/16/2026
34m
No alerts
05/16/2026
4m
No alerts
05/08/2026
1h 13m
△ Unstable approach
05/08/2026
1h 13m
No alerts
05/07/2026
29m
No alerts
05/03/2026
5m
△ Unstable approach
05/03/2026
24m
No alerts
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