WHITE JAMES L· ICAO24 a51678· last seen 8d ago

N427JR is a Lancair PropJet IV, a single-engine turboprop operated by WHITE JAMES L. SkyMeter has tracked 130 flights totalling 150 hours of airtime via ADS-B. The most frequent segment is KPIE to KPIE. Service window in our records spans 369 days. Of those flights, 12 (9.2%) carry at least one detected incident: a go-around, unstable approach, stall warning, or runway excursion. The Lancair PropJet IV has a 33 ft wingspan, a maximum takeoff weight of 3,800 lb.

About the Lancair PropJet IV

The Lancair IV-P represents the pinnacle of amateur-built high-performance aviation, holding the distinction of being one of the fastest piston-single aircraft ever certified in the Experimental category. Introduced in the early 1990s by Lancair International, this pressurized four-seat composite speedster was designed for owner-builders seeking near-turboprop performance at piston operating costs. With a cruise capability exceeding 300 knots true airspeed at altitude and a service ceiling above 25,000 feet, the IV-P routinely outpaces many light twins and can maintain cabin pressurization equivalent to 8,000 feet while flying in the flight levels.

Built entirely from carbon fiber and epoxy composites, the IV-P features a sleek low-wing design optimized for speed, typically powered by a Continental TSIO-550 engine producing 350 horsepower. The aircraft's performance envelope is genuinely remarkable for a single-engine piston: owners report block speeds of 280-320 knots in cruise, with range exceeding 1,200 nautical miles. However, this performance comes with demanding handling characteristics: the IV-P has a well-documented reputation for requiring proficient stick-and-rudder skills, particularly during approach and landing where its clean aerodynamics and relatively high wing loading demand precise speed control.

The type has attracted a dedicated community of experienced pilots and builders, many of whom are business owners and professionals seeking the ultimate in personal transportation efficiency. While the kit-build process typically requires 2,000-3,000 hours of construction time, the result is an aircraft that delivers jet-like point-to-point times at a fraction of the operating cost. The IV-P remains in production through Lancair's successor companies, with ongoing support for the existing fleet.

SkyMeter has tracked flights across airframes and operators, with the largest observed operator.

FLIGHTS
130
all time
FLOWN HOURS
150
tracked time
📍
AIRPORTS VISITED
28
unique
📡
CALLSIGNS
1
37 routes
📅
SERVICE PERIOD
07/08/2025 → 07/13/2026
first → last
INCIDENT RATE
9.2%
12 flagged

Top routes

By flight count

10
13
3
3
3
2
2
2
5S5 KRDM
1
1
1

Flight numbers

Most-flown by this airframe

1

Aircraft specifications

Lancair PropJet IV

Engines
Single Turboprop
Vref (approach)
81 kt
MTOW
3,800 lb
Wingspan
33 ft
Length
25 ft
Wake category
Light

Recent flights

Newest 50 operations of N427JR

50
07/13/2026
1h 19m
△ Low approach-stability score
07/10/2026
53m
△ Low approach-stability score
06/02/2026
1h 7m
△ Low approach-stability score
04/16/2026
30m
△ Low approach-stability score
© SkyMeter · All flight data subject to ODbL attribution