GURKE, Glider with Wing Warping

Designed by Tim Weißbach - Made by Grüner CNC

We are proud to present the "Gurke" glider by Tim Weißbach! Tim's fantastic and well-engineered designs have long fascinated us. Through a collaboration with TIM and RALF GRÜNER, we have managed to make good things even better. We have already impressively demonstrated Grüner-CNC's manufacturing quality with the Introduction F5J, Inside F5J, and Innovation. Now, Tim Weißbach's models will also be produced with the highest laser-cut quality and an outstanding, colorful construction plan.

About the Gurke:

The Gurke is a very special slope glider. Its extraordinary method of control via wing warping is almost unique. This allows the tail unit to be fixed and not articulated. Therefore, a standard V-tail or delta mixer is sufficient for control. For elevator control, the wings are adjusted in the same direction; for aileron control, they are adjusted in opposite directions. Since a wing-warping model has no rudder gaps, control horns, or similar external linkage parts, significantly fewer turbulences are generated than would be the case with comparable model gliders with rudders. Furthermore, the MH30 airfoil remains unchanged during control, preserving the excellent properties of this airfoil in every flight attitude.
The design of the Gurke is very robust and simple to handle – these are ideal conditions for use on the slope. Its low weight combined with the MH30 gives it an astonishingly wide range of applications. "Cruising" in the lightest slope winds or a "Gurkensalat" (cucumber salad, meaning chaotic flight) up to wind force 6 – the Gurke is the new popular vegetable for the parcel shelf.
Thanks to the intelligent, magnetically secured wing connection, the wing can be attached to the fuselage in an instant without tools. This ensures easy transport of the glider in a backpack. Always ready and versatile.

The Kit:

Assembly is quick and easy thanks to the excellent construction plan and precisely laser-cut components. Simply prepare the parts, plug them together, and once everything fits, fix them with superglue.

Scope of Delivery:

All parts required for the airframe are included in the kit. This includes all laser-cut parts, carbon fiber and wood strips, the wing connector, and all small parts for the wing linkage. Only the finest materials are used - best birch aircraft plywood and hard balsa wood.

Required Accessories:

• Superglue
• Covering material for wings and tail unit
• Varnish or pore filler for the fuselage
• 2 x Servo KST DS113 or AGF B13-DLM V2
• Small receiver from 4 channels
• Receiver battery Lipo 2S (with voltage regulator) or NiMH 4/300mA (1/3 AA)
• Remote control