Rollason Aircraft & Engines Ltd Turbulent (SPRT)
ICAO SPRT Light Piston

Rollason Aircraft & Engines Ltd Turbulent

Single Piston

The Rollason Turbulent is a single-seat ultralight homebuilt aircraft originally designed by Frenchman Roger Druine in the 1950s and later manufactured under license by Rollason Aircraft & Engines in the United Kingdom. With a maximum takeoff weight of just 730 pounds and powered by modest engines in the 35-50 horsepower range (often Volkswagen conversions or Continental A65s), the Turbulent represents the minimalist end of recreational aviation. Its wooden construction, fabric covering, and open-cockpit or minimal-canopy configuration made it an affordable entry point for post-war amateur builders seeking the pure joy of flight without the complexity or expense of certified aircraft. The type became popular in the UK homebuilt community during the 1960s and 1970s, with Rollason producing kits and plans that allowed enthusiasts to construct their own examples in garages and workshops across the country. Despite its modest performance envelope, cruising around 80-90 knots with a never-exceed speed of 140 knots, the Turbulent offered genuine stick-and-rudder flying at a time when certified aircraft were becoming increasingly expensive. Its low stall speed of approximately 35 knots in landing configuration made it forgiving for grass-strip operations, though crosswind handling demanded respect given the light wing loading and minimal inertia. Today the type is a rare sight, with only a handful remaining airworthy as cherished examples of the golden age of homebuilt aviation. SkyMeter has tracked flights across airframes and operators, covering routes.

ACTIVE AIRFRAMES
last 7 days
🏢
OPERATORS
unique airlines
📊
FLIGHTS
tracked
AVG DURATION
per flight
INCIDENT RATE
0.0%
0 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
140 kt
Vno
120 kt
Vs0 (landing)
35 kt
Approach category

Dimensions

Airframe geometry

Wingspan
Length
Tail height
Wheelbase
Gear width
Wake category
L

Weight & identification

Operating limits

MTOW
730 lb
MALW
Manufacturer model
Turbulent
FAA designator
Registered

Top operators

By fleet size · last 7 days

0

No operator data available.

Safety profile

Flagged flights · last 7 days

No safety data available.

Family

Related variants

0

No related variants.

Recent incidents

Flagged flights of SPRT

1
11/13/2025
33m
△ Low approach-stability score

Recent flights

Real flights of SPRT · airborne ≥ 20 min

30
8/16/2026
41m
No alerts
7/24/2026
23m
No alerts
4/18/2026
1h 8m
No alerts
12/30/2025
34m
No alerts
12/19/2025
35m
No alerts
12/19/2025
1h 12m
No alerts
12/2/2025
39m
No alerts
11/13/2025
33m
△ Low approach-stability score
9/19/2025
54m
No alerts
8/26/2025
32m
No alerts
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© SkyMeter · All flight data subject to ODbL attribution · Tracking window: 7 days (free tier)