Schempp-Hirth Discus-2 (SD2)
ICAO SD2 Light Piston

Schempp-Hirth Discus-2

Single Piston

The Schempp-Hirth Discus-2 is a high-performance self-launching sailplane that bridges the gap between pure gliders and powered aircraft. Manufactured by the renowned German sailplane builder Schempp-Hirth, the Discus-2 entered production in the mid-1990s as an evolution of the original Discus design, adding a retractable single-cylinder engine—typically a Rotax two-stroke—that allows pilots to take off independently and climb to soaring altitude without a tow plane or winch. Once airborne, the engine retracts flush into the fuselage, restoring the aircraft's clean aerodynamic profile for efficient thermalling and cross-country flight. With an 18-meter wingspan and a glide ratio exceeding 40:1, the Discus-2 competes at the highest levels of sailplane racing while offering the practical advantage of self-launch capability. Its composite construction keeps empty weight around 660 pounds, and the type has proven popular among serious soaring pilots in Europe and North America who value the freedom to launch from small airfields without ground support. The Discus-2 remains in production today, with variants including the turbo-charged Discus-2T for high-altitude operations. SkyMeter has tracked 3 flights across 1 airframes and 1 operators over routes, with the largest observed operator.

ACTIVE AIRFRAMES
1
last 7 days
🏢
OPERATORS
1
unique airlines
📊
FLIGHTS
3
tracked
AVG DURATION
1h 11m
per flight
INCIDENT RATE
33.3%
1 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
50 kt
Vref range
Vmo
Mmo
Vne
168 kt
Vno
135 kt
Vs0 (landing)
41 kt
Approach category

Dimensions

Airframe geometry

Wingspan
Length
Tail height
Wheelbase
Gear width
Wake category
L

Weight & identification

Operating limits

MTOW
1,543 lb
MALW
Manufacturer model
Discus-2
FAA designator
Registered

Top operators

By fleet size · last 7 days

0

No operator data available.

Safety profile

Flagged flights · last 7 days

Family

Related variants

0

No related variants.

Recent incidents

Flagged flights of SD2

8
07/02/2026
1h 29m
△ Unstable approach
05/25/2026
25m
△ Unstable approach
03/27/2026
25m
△ Unstable approach
03/22/2026
1h 2m
△ Unstable approach
08/22/2025
43m
△ Unstable approach
08/22/2025
35m
△ Unstable approach
06/19/2025
42m
△ Unstable approach
06/18/2025
28m
△ Unstable approach

Recent flights

Real flights of SD2 · airborne ≥ 20 min

30
07/02/2026
44m
No alerts
07/02/2026
1h 18m
No alerts
07/02/2026
1h 29m
△ Unstable approach
06/21/2026
46m
No alerts
06/21/2026
35m
No alerts
06/21/2026
39m
No alerts
06/19/2026
42m
No alerts
06/18/2026
59m
No alerts
06/18/2026
55m
No alerts
06/18/2026
31m
No alerts
06/18/2026
1h 1m
No alerts
06/17/2026
35m
No alerts
06/14/2026
41m
No alerts
06/11/2026
45m
No alerts
06/10/2026
35m
No alerts
06/07/2026
42m
No alerts
06/06/2026
55m
No alerts
06/03/2026
1h 9m
No alerts
05/25/2026
25m
△ Unstable approach
05/24/2026
41m
No alerts
05/24/2026
20m
No alerts
05/24/2026
21m
No alerts
05/24/2026
1h 23m
No alerts
05/24/2026
24m
No alerts
05/23/2026
34m
No alerts
05/10/2026
35m
No alerts
05/10/2026
2h 5m
No alerts
05/09/2026
58m
No alerts
05/09/2026
45m
No alerts
05/08/2026
1h 2m
No alerts
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© SkyMeter · All flight data subject to ODbL attribution · Tracking window: 7 days (free tier)