Risen 915is (RISN)
ICAO RISN Light Piston

Risen 915is

Single Piston

The Risen 915iS represents the modern evolution of European light-sport aviation, built by Czech manufacturer Risen and powered by the sophisticated Rotax 915iS turbocharged four-cylinder engine. This powerplant delivers 135 horsepower while burning automotive gasoline, making it one of the most capable engines in the light-sport category and enabling the aircraft to operate efficiently at higher altitudes than naturally-aspirated competitors. The 915iS designation reflects its defining feature: Rotax's fuel-injected, turbocharged engine that maintains sea-level power up to approximately 15,000 feet, a significant advantage for mountain flying and cross-country missions. Designed to maximize the performance envelope permitted under both US light-sport aircraft regulations (1,320 lb maximum gross weight) and European ultralight standards, the Risen pushes the boundaries of what a two-seat aircraft can accomplish within these constraints. Its composite construction keeps empty weight low while providing a sleek, aerodynamically efficient airframe. The type appeals to owner-pilots seeking modern avionics, excellent fuel economy, and the ability to operate from short grass strips while still achieving respectable cross-country speeds. With a never-exceed speed of 120 knots and a cruise capability in the 100-knot range, it occupies the sweet spot between traditional ultralights and certified general aviation aircraft. The Risen's operating characteristics reflect its light-sport pedigree: a stall speed of just 37 knots with full flaps makes it forgiving for student pilots and accessible to short-field operations, while its relatively high VNE and turbocharged engine provide cross-country capability that rivals some certified aircraft. The type has found favor among flight schools in Europe and private owners in North America who value the combination of modern technology, operating economy, and the simplified maintenance regime permitted under light-sport rules. SkyMeter has tracked 23 flights across 11 airframes and 3 operators, with RISEN AIRCRAFT USA LLC the largest observed operator.

ACTIVE AIRFRAMES
11
last 7 days
🏢
OPERATORS
3
unique airlines
📊
FLIGHTS
23
tracked
AVG DURATION
1h 0m
per flight
INCIDENT RATE
13.0%
3 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
45 kt
Vref range
Vmo
Mmo
Vne
120 kt
Vno
97 kt
Vs0 (landing)
37 kt
Vfe
70 kt
Approach category

Dimensions

Airframe geometry

Wingspan
Length
Tail height
Wheelbase
Gear width
Wake category
L

Weight & identification

Operating limits

MTOW
1,320 lb
MALW
Manufacturer model
915iS
FAA designator
Registered

Safety profile

Flagged flights · last 7 days

Family

Related variants

0

No related variants.

Recent incidents

Flagged flights of RISN

20
8/13/2026
1h 8m
» Overspeed
8/12/2026
2h 31m
» Overspeed
8/10/2026
1h 12m
△ Low approach-stability score
8/5/2026
3h 49m
△ Low approach-stability score
8/2/2026
3h 20m
» Overspeed
8/1/2026
21m
△ Low approach-stability score
7/24/2026
2h 18m
» Overspeed
7/20/2026
53m
△ Low approach-stability score
7/15/2026
51m
» Overspeed
7/11/2026
2h 37m
» Overspeed

Recent flights

Real flights of RISN · airborne ≥ 20 min

30
8/16/2026
23m
No alerts
8/16/2026
27m
No alerts
8/16/2026
20m
No alerts
8/15/2026
29m
No alerts
8/15/2026
2h 6m
No alerts
8/14/2026
30m
No alerts
8/14/2026
57m
No alerts
8/14/2026
35m
No alerts
8/14/2026
3h 35m
No alerts
8/13/2026
1h 8m
» Overspeed
8/12/2026
40m
No alerts
8/12/2026
2h 31m
» Overspeed
8/12/2026
1h 59m
No alerts
8/10/2026
37m
No alerts
8/10/2026
1h 41m
No alerts
8/10/2026
1h 12m
△ Low approach-stability score
8/10/2026
1h 13m
No alerts
8/10/2026
45m
No alerts
8/8/2026
1h 52m
No alerts
8/7/2026
38m
No alerts
8/7/2026
20m
No alerts
8/7/2026
3h 57m
No alerts
8/7/2026
22m
No alerts
8/6/2026
39m
No alerts
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© SkyMeter · All flight data subject to ODbL attribution · Tracking window: 7 days (free tier)