A timeless classic — refined for today, at Aerobertics
The COBRA is a modern reinterpretation of the legendary Robbe model from the 1970s. Carefully updated to meet today’s expectations, it retains the unmistakable charm and flying character of the original.
Just like its predecessor, this is a traditional wooden kit, featuring a beautifully engineered ribbed wing structure. The design has been thoughtfully optimized to ensure a smooth and enjoyable building experience, making it accessible even to less experienced builders—without compromising performance.
At Aerobertics, we particularly appreciate how this model blends nostalgia with modern reliability, offering both a rewarding build and truly satisfying flight characteristics.
Version #2737 – 3-Axis (Ailerons & Flaps)
For advanced pilots seeking versatility and performance
The #2737 version features a redesigned wing equipped with ailerons and flaps, expanding its flight envelope significantly.
- Full control: ailerons, elevator, rudder, flaps, motor
- More agile and dynamic handling
- Excellent thermal performance
- Ideal for slope soaring and sport flying on the flat field
Recommended setup:
- Motor
- Battery: 3S LiPo 1300–1800mAh
- Propeller: 9×7”
- Spinner: 34–35 mm
- Servos:
- 2× Servos (rudder & elevator)
- 4× Servos (ailerons & flaps)
This setup delivers impressive climb performance and a more dynamic flying experience—perfectly matching the sporty nature of this version.
Technical Specifications
- Wingspan: 2040 mm
- Length: 1030 mm
- Flight Weight: approx. 980 g
- Construction: Wood (fuselage and ribbed wings)
- Airfoil: JX-GT20 Strak
- Power System: Electric (Not Included)
- Battery: 3S LiPo 1300–1800 mAh (Not Included)
- Control Functions: Ailerons, Elevator, Rudder, Flaps, Motor
- Skill Level: Advanced
- Version: Kit
Why we like it at Aerobertics
The COBRA stands out as a rare combination of classic building craftsmanship and modern flight performance. Whether you choose the beginner-friendly 2-axis version or the more capable 3-axis setup, you get a glider that is both rewarding to build and a joy to fly.
A true classic—reborn for today’s pilots.
