Lancair Propjet Iv (LNP4)
i
ICAO LNP4 Small

Lancair Propjet Iv

Single Turboprop· 191 globally registered

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 82 flights across 24 airframes and 24 operators, with ROSELAND LLC the largest observed operator.

ACTIVE AIRFRAMES
24
last 7 days
🏢
OPERATORS
24
unique airlines
📊
FLIGHTS
82
tracked
AVG DURATION
1h 41m
per flight
INCIDENT RATE
6.1%
5 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
81 kt
Vref range
Vmo
Mmo
Vne
300 kt
Vno
235 kt
Vs0 (landing)
68 kt
Vfe
135 kt
Approach category
A

Dimensions

Airframe geometry

Wingspan
33 ft
Length
25 ft
Tail height
8 ft
Wheelbase
6 ft
Gear width
8 ft
Wake category
Light

Weight & identification

Operating limits

MTOW
3,800 lb
MALW
Manufacturer model
Lancair PropJet IV
FAA designator
LNP4
Registered
191

Recent incidents

Flagged flights of LNP4

20
08/25/2026
58m
△ Low approach-stability score
08/24/2026
1h 46m
△ Low approach-stability score
08/20/2026
1h 20m
△ Low approach-stability score
08/20/2026
1h 33m
△ Low approach-stability score
08/18/2026
23m
△ Low approach-stability score
08/16/2026
49m
△ Low approach-stability score
08/16/2026
23m
△ Low approach-stability score
08/13/2026
37m
△ Low approach-stability score
08/12/2026
51m
△ Low approach-stability score
08/11/2026
37m
△ Low approach-stability score

Recent flights

Real flights of LNP4 · airborne ≥ 20 min

30
08/25/2026
1h 6m
No alerts
08/25/2026
53m
No alerts
08/25/2026
58m
△ Low approach-stability score
08/25/2026
1h 14m
No alerts
08/25/2026
1h 4m
No alerts
08/25/2026
1h 20m
No alerts
08/25/2026
20h 16m
No alerts
08/25/2026
21m
No alerts
08/25/2026
25m
No alerts
08/24/2026
1h 5m
No alerts
08/24/2026
58m
No alerts
08/24/2026
45m
No alerts
08/24/2026
1h 46m
△ Low approach-stability score
08/24/2026
1h 2m
No alerts
08/24/2026
34m
No alerts
08/24/2026
1h 56m
No alerts
08/24/2026
1h 53m
No alerts
08/24/2026
3h 47m
No alerts
08/24/2026
6h 27m
No alerts
08/24/2026
5h 24m
No alerts
08/24/2026
1h 30m
No alerts
08/24/2026
51m
No alerts
08/23/2026
5h 18m
No alerts
08/23/2026
5h 50m
No alerts
08/23/2026
28m
No alerts
08/23/2026
43m
No alerts
08/23/2026
51m
No alerts
08/23/2026
36m
No alerts
08/23/2026
53m
No alerts
08/23/2026
29m
No alerts
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© SkyMeter · All flight data subject to ODbL attribution · Tracking window: 7 days (free tier)