4 GIRLS AIRCRAFT LLC· ICAO24 a7c4e8· last seen 2d ago

N60AB is a Beech 60 Duke, a twin-engine piston aircraft operated by 4 GIRLS AIRCRAFT LLC. SkyMeter has tracked 168 flights totalling 127 hours of airtime via ADS-B. The most frequent segment is KISP to KPOU. Service window in our records spans 415 days. Of those flights, 20 (11.9%) carry at least one detected incident: a go-around, unstable approach, stall warning, or runway excursion. The Beech 60 Duke has a 39 ft wingspan, a maximum takeoff weight of 6,775 lb.

About the Beech 60 Duke

The Beechcraft Duke is a pressurized twin-engine piston aircraft that represented the pinnacle of Beechcraft's cabin-class piston line when production began in 1968. Powered by two turbocharged Lycoming TIO-541 engines producing 380 horsepower each, the Duke was designed to compete with light turboprops by offering pressurization, high cruise speeds around 230 knots, and a service ceiling of 30,000 feet, capabilities that set it apart from unpressurized twins like the Baron. The aircraft's distinctive T-tail and sleek fuselage made it instantly recognizable on the ramp, though its complexity and operating costs earned it a reputation as a demanding but rewarding machine for experienced pilots.

Production ran until 1982 with approximately 596 Dukes built across several variants, including the A60, B60, and turbine-converted models. The B60, introduced in 1974, became the most refined version with improved systems and aerodynamics. Despite its performance advantages, the Duke never achieved the commercial success of its simpler Baron sibling, largely due to higher acquisition and maintenance costs during an era when turboprops were becoming increasingly accessible. The type found its niche among owner-pilots who valued its pressurized comfort and speed for personal and business travel, as well as with air ambulance operators who appreciated the cabin space and high-altitude capability.

Today the Duke remains a respected if uncommon sight, prized by enthusiasts for its performance envelope and the engineering ambition it represented in the piston-twin category. Its pressurization system, while maintenance-intensive, allows comfortable flight above most weather, and its cruise performance still competes favorably with modern piston twins. SkyMeter has tracked flights across airframes and operators, with the largest observed operator.

FLIGHTS
168
all time
FLOWN HOURS
127
tracked time
📍
AIRPORTS VISITED
11
unique
📡
CALLSIGNS
1
20 routes
📅
SERVICE PERIOD
05/30/2025 → 07/19/2026
first → last
INCIDENT RATE
11.9%
20 flagged

Top routes

By flight count

10
21
20
7
5
4
3
3
3
3
2

Flight numbers

Most-flown by this airframe

1

Aircraft specifications

Beech 60 Duke

Engines
Twin Piston
Vref (approach)
98 kt
MTOW
6,775 lb
Wingspan
39 ft
Length
34 ft
Wake category
Light

Recent flights

Newest 50 operations of N60AB

50
06/26/2026
1h 25m
No alerts
06/24/2026
1h 23m
No alerts
06/21/2026
1h 0m
No alerts
05/31/2026
1h 1m
No alerts
05/31/2026
2h 46m
△ Low approach-stability score
05/28/2026
2h 49m
No alerts
05/25/2026
1h 9m
No alerts
05/04/2026
23m
△ Low approach-stability score
05/03/2026
23m
△ Low approach-stability score
03/18/2026
23m
△ Low approach-stability score
03/15/2026
1h 45m
No alerts
03/13/2026
1h 30m
No alerts
01/11/2026
1h 11m
No alerts
01/08/2026
1h 23m
No alerts
11/25/2025
1h 16m
No alerts
10/25/2025
1h 6m
No alerts
10/19/2025
2h 19m
△ Low approach-stability score
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