BOLTON WILLIAM M· ICAO24 aba67d· last seen Sep 2026

N85RG is a Mitsubishi MU-2, a twin-engine turboprop operated by BOLTON WILLIAM M. SkyMeter has tracked 144 flights totalling 99 hours of airtime via ADS-B across 2 callsigns. The most frequent segment is KLNC to KLNC. Service window in our records spans 469 days. Of those flights, 10 (6.9%) carry at least one detected incident: a go-around, unstable approach, stall warning, or runway excursion. The Mitsubishi MU-2 has a maximum takeoff weight of 11,575 lb, light wake category.

About the Mitsubishi MU-2

The Mitsubishi MU-2 is a high-performance twin-turboprop business aircraft that stands out for its unconventional design choices and demanding flight characteristics. Built by Mitsubishi Heavy Industries from 1963 through 1986, the MU-2 was Japan's first postwar aircraft to achieve significant commercial success in Western markets, with over 700 produced across numerous variants. Unlike conventional light twins, the MU-2 uses full-span double-slotted flaps and spoilers for roll control instead of ailerons, a design borrowed from jet fighters that delivers exceptional short-field performance but requires precise pilot technique.

Powered by Garrett TPE331 turboprops producing 715 to 778 shaft horsepower each depending on variant, the MU-2 cruises at 300 knots and climbs rapidly to altitudes above 25,000 feet, performance that rivals much larger turboprops. Its high wing loading and relatively small control surfaces give it jet-like handling qualities that earned the type a reputation for being unforgiving of pilot error, leading the FAA to mandate special factory training for all MU-2 pilots under SFAR 108 in 2008. This regulatory intervention followed a period of elevated accident rates, though the aircraft itself is structurally sound and highly capable when flown within its envelope.

Today the MU-2 serves primarily in cargo, air ambulance, and corporate roles where its combination of speed, payload, and short-field capability remains valuable. The type's unique handling and training requirements have created a tight-knit community of operators who appreciate its performance once mastered. SkyMeter has tracked flights across airframes and operators, with the largest observed operator.

✈
FLIGHTS
144
all time
⏱
FLOWN HOURS
99
tracked time
📍
AIRPORTS VISITED
25
unique
📡
CALLSIGNS
2
32 routes
📅
SERVICE PERIOD
6/1/2025 → 9/13/2026
first → last
⚠
INCIDENT RATE
6.9%
10 flagged

Top routes

By flight count

10
4
2
1
1
1
1
1
12T → KGTU
1
1
1

Flight numbers

Most-flown by this airframe

2

Aircraft specifications

Mitsubishi MU-2

Engines
Twin Turboprop
Vref (approach)
110 kt
Vmo
280 kt
MTOW
11,575 lb
Wake category
L

Recent flights

Newest 50 operations of N85RG

50
9/13/2026
8m
No alerts
9/13/2026
7m
No alerts
9/8/2026
22m
No alerts
9/5/2026
23m
No alerts
9/4/2026
1h 16m
No alerts
9/4/2026
5h 26m
No alerts
8/29/2026
19m
No alerts
8/29/2026
14m
No alerts
8/17/2026
1h 29m
No alerts
8/15/2026
20m
No alerts
8/15/2026
1h 6m
No alerts
7/3/2026
29m
No alerts
6/30/2026
13m
No alerts
6/30/2026
24m
No alerts
6/29/2026
12m
△ Low approach-stability score
6/27/2026
18m
No alerts
5/15/2026
17m
No alerts
4/20/2026
22m
No alerts
4/20/2026
8m
No alerts
4/19/2026
42m
No alerts
4/19/2026
13m
No alerts
4/19/2026
3m
No alerts
4/18/2026
39m
No alerts
4/18/2026
18m
No alerts
4/15/2026
15m
No alerts
4/13/2026
25m
No alerts
4/5/2026
41m
No alerts
4/5/2026
6m
No alerts
3/31/2026
46m
No alerts
3/31/2026
53m
No alerts
1/16/2026
31m
No alerts
1/16/2026
31m
No alerts
1/3/2026
54m
No alerts
1/3/2026
44m
△ Low approach-stability score
11/29/2025
45m
No alerts
11/29/2025
46m
No alerts
11/21/2025
16m
△ Low approach-stability score
11/21/2025
25m
No alerts
11/21/2025
2m
No alerts
11/21/2025
2h 21m
△ Low approach-stability score
11/17/2025
13m
No alerts
10/23/2025
17m
No alerts
10/15/2025
1h 7m
No alerts
10/15/2025
50m
No alerts
10/14/2025
20m
No alerts
10/7/2025
32m
No alerts
10/7/2025
25m
No alerts
9/30/2025
2m
No alerts
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