Pilatus Pc-31 (BU31)
ICAO BU31 Light

Pilatus Pc-31

Single Turboprop

The Pilatus PC-31 Turbo Porter represents a turboprop evolution of the legendary PC-6 Porter, Switzerland's famous short takeoff and landing workhorse first introduced in the 1950s. Built by Pilatus Aircraft in Stans, the PC-31 variant features a Pratt & Whitney Canada PT6A turboprop engine delivering exceptional performance in confined mountain strips, bush operations, and utility roles where conventional aircraft cannot operate. Its unpressurized cabin accommodates up to ten passengers or equivalent cargo, and the aircraft's fixed tricycle or tailwheel landing gear can be fitted with skis, floats, or oversized tundra tires for operations in extreme environments. What distinguishes the Porter family is its extraordinary STOL capability: takeoff runs under 200 meters and landing distances even shorter make it the aircraft of choice for Alpine rescue services, parachute operations, and remote supply missions across rugged terrain. The type's high-wing configuration and rugged airframe allow operations from grass strips, glaciers, and improvised surfaces at altitudes where most single-engine aircraft struggle. Maximum operating altitude exceeds 25,000 feet, and the PC-31's slow-flight handling remains docile even in challenging mountain weather. The PC-31 designation specifically refers to turboprop-powered Porters in certain registries, though the broader PC-6 family encompasses both piston and turbine variants spanning seven decades of production. Over 600 Porters of all types have been delivered worldwide, serving operators from the Swiss Air Force to humanitarian organizations in Africa and Asia. The aircraft remains in production today, a testament to its unmatched utility in the world's most demanding operating environments. SkyMeter has tracked 44 flights across 13 airframes and 9 operators over routes, with GIDZINSKI DAVID A the largest observed operator.

ACTIVE AIRFRAMES
13
last 7 days
🏢
OPERATORS
9
unique airlines
📊
FLIGHTS
44
tracked
AVG DURATION
35m
per flight
INCIDENT RATE
4.5%
2 flagged

Safety in context

The incident rate counts flights with ANY safety event detected by SkyMeter: go-arounds (a routine response, not a failure), unstable-approach gate flags (advisory thresholds), rejected takeoffs (the system working as designed), and runway events. It is NOT an accident rate or fatality rate. For accident statistics, refer to the NTSB Aviation Accident Database (USA) or the Aviation Safety Network. See methodology for what each event type measures.

Performance

Speed envelope & approach

Vref
85 kt
Vref range
Vmo
280 kt
Mmo
Vne
320 kt
Vno
250 kt
Vs0 (landing)
67 kt
Vfe
150 kt
Approach category

Dimensions

Airframe geometry

Wingspan
Length
Tail height
Wheelbase
Gear width
Wake category
L

Weight & identification

Operating limits

MTOW
12,125 lb
MALW
Manufacturer model
PC-31
FAA designator
Registered

Recent incidents

Flagged flights of BU31

20
08/24/2026
1h 6m
! Stall
08/23/2026
42m
! Stall
08/19/2026
49m
! Stall
08/18/2026
40m
! Stall
08/18/2026
21m
! Stall
08/18/2026
55m
! Stall△ Low approach-stability score
08/17/2026
30m
△ Low approach-stability score
08/16/2026
40m
△ Low approach-stability score
08/15/2026
50m
! Stall
08/11/2026
1h 1m
! Stall

Recent flights

Real flights of BU31 · airborne ≥ 20 min

30
08/26/2026
19m
No alerts
08/26/2026
32m
No alerts
08/26/2026
32m
No alerts
08/26/2026
33m
No alerts
08/24/2026
22m
No alerts
08/24/2026
54m
No alerts
08/24/2026
56m
No alerts
08/24/2026
1h 0m
No alerts
08/24/2026
25m
No alerts
08/24/2026
1h 6m
! Stall
08/23/2026
25m
No alerts
08/23/2026
1h 3m
No alerts
08/23/2026
1h 1m
No alerts
08/23/2026
3h 9m
No alerts
08/23/2026
23m
No alerts
08/23/2026
1h 5m
No alerts
08/23/2026
49m
No alerts
08/23/2026
42m
! Stall
08/22/2026
38m
No alerts
08/22/2026
27m
No alerts
08/22/2026
27m
No alerts
08/22/2026
28m
No alerts
08/21/2026
59m
No alerts
08/21/2026
20m
No alerts
08/20/2026
2h 20m
No alerts
08/20/2026
1h 37m
No alerts
08/19/2026
23m
No alerts
08/19/2026
48m
No alerts
08/19/2026
49m
! Stall
08/19/2026
1h 2m
No alerts
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© SkyMeter · All flight data subject to ODbL attribution · Tracking window: 7 days (free tier)