MULLENBACH MICHAEL R· ICAO24 a56d5d· last seen 10d ago

N449PM is a Van's Aircraft RV-4, a single-engine piston aircraft operated by MULLENBACH MICHAEL R. SkyMeter has tracked 144 flights totalling 39 hours of airtime via ADS-B. The most frequent segment is 53MN to KMCW. Service window in our records spans 407 days. Of those flights, 32 (22.2%) 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
144
all time
FLOWN HOURS
39
tracked time
📍
AIRPORTS VISITED
17
unique
📡
CALLSIGNS
1
31 routes
📅
SERVICE PERIOD
06/04/2025 → 07/17/2026
first → last
INCIDENT RATE
22.2%
32 flagged

Top routes

By flight count

10
12
4
4
3
2
2
2
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 50 operations of N449PM

50
07/17/2026
14m
No alerts
07/16/2026
13m
△ Low approach-stability score
07/12/2026
16m
No alerts
07/12/2026
12m
No alerts
07/12/2026
17m
No alerts
07/05/2026
7m
No alerts
07/05/2026
6m
△ Low approach-stability score
07/04/2026
13m
△ Low approach-stability score
06/30/2026
14m
No alerts
06/30/2026
9m
No alerts
06/27/2026
10m
No alerts
06/24/2026
14m
△ Low approach-stability score
06/20/2026
13m
No alerts
06/20/2026
15m
△ Low approach-stability score
06/19/2026
12m
No alerts
06/18/2026
7m
No alerts
06/15/2026
10m
No alerts
06/15/2026
14m
No alerts
06/06/2026
13m
No alerts
06/06/2026
13m
No alerts
05/29/2026
31m
No alerts
05/29/2026
31m
No alerts
05/16/2026
12m
No alerts
05/16/2026
16m
No alerts
05/10/2026
12m
No alerts
05/10/2026
14m
△ Low approach-stability score
04/25/2026
5m
No alerts
04/25/2026
5m
No alerts
03/21/2026
10m
No alerts
03/21/2026
14m
No alerts
03/20/2026
47m
No alerts
03/20/2026
38m
No alerts
03/20/2026
5m
No alerts
03/09/2026
15m
No alerts
03/09/2026
14m
No alerts
02/27/2026
10m
No alerts
02/27/2026
12m
△ Low approach-stability score
11/23/2025
18m
No alerts
11/23/2025
14m
△ Low approach-stability score
11/22/2025
35m
No alerts
11/16/2025
11m
△ Low approach-stability score
11/16/2025
19m
△ Low approach-stability score
11/15/2025
7m
No alerts
11/15/2025
11m
No alerts
11/15/2025
13m
△ Low approach-stability score
11/11/2025
22m
No alerts
09/21/2025
18m
No alerts
09/21/2025
21m
No alerts
09/14/2025
18m
No alerts
09/14/2025
13m
No alerts
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