Grob G103c Twin III
The G103C Twin III is a high performance tandem two-seat sailplane made by Grob Aircraft. It replaced the Twin II in production and features a new triple-trapezoidal wing, automatic elevator connection, lower control forces and higher airspeed limitations.
| G103C Twin III | |
|---|---|
 | |
| Role | Two-Seater Class sailplane |
| National origin | Germany |
| Manufacturer | Grob Aircraft |
| Introduction | 1989 |
| Status | Production completed |
| Number built | 115 (13 Twin III and 102 Twin III Acro) |
| Developed from | Twin II |
| Variants | Twin Astir |
Most Twin IIIs (102 of 115 built) were Twin III Acro models, with G-Limits of +6/-4g. However, aerobatic maneuvers were limited in 2003 by an airworthiness directive[1] and could only be reinstated with fuselage reinforcements.[2]
Specifications (Twin III Acro)
Data from manufacturer[3]
General characteristics
- Crew: 1
- Capacity: 1 passenger
- Length: 8.18 m (26 ft 10 in)
- Wingspan: 18 m (59 ft 1 in)
- Height: 1.55 m (5 ft 1 in)
- Wing area: 17.5 m2 (188 sq ft)
- Aspect ratio: 17.1
- Gross weight: 600 kg (1,323 lb)
Performance
- Never exceed speed: 280 km/h (170 mph, 150 kn) (manoeuvering speed 185 km/h)
- g limits: +6 -4
- Maximum glide ratio: 38
References
External links
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