Graupner,WP TURBO RAVEN Verbrennervers,6284.V

WP TURBO RAVEN Verbrennervers Graupner 6284.V Wayne Handley, the American aerobatic and demonstration pilot, hit on the idea of designing and building an aerobatic machine to be powered by a 750 BHP Pratt & Whitney turbo-prop engine, as installed in the Swiss Pilatus PC 7 and Turbo Porter. The wings of the new machine were adopted from the GILES G 200, with suitable structural reinforcements, while the fuselage and tail surfaces were completely re-designed.
The fuselage, wings and tail surfaces were built using GRP / carbon fibre sandwich techniques, and the machine was test-flown in March 1998.
The aircraft´s enormous engine power of 750 BHP makes it possible to carry out short take-offs of around 40 m, followed by an indefinite vertical climb. Maximum airspeed at full engine power is 481 km / hr, and the roll rate is a staggering 450° per second! The maximum climb rate is achieved at a speed of 185 km / hr and an angle of 70°, producing a climb rate of 1900 m / minute. In 1999 this machine set a new world record of 91 seconds for climb to 3000 m height from a standing start. The turbo-prop´s power of 750 BHP combined with a take-off weight of 860 kg equates to a power : weight ratio of virtually 1:1, a figure only exceeded by jet aircraft. The TURBO RAVEN is employed for aerobatics and exotic demonstration flying. Our model is drawn to a scale of 1:3, and with a wingspan of 2.42 m it is still very easy to handle. The TURBO RAVEN is specially designed for the SPT5 turbo-prop engine, and its static design takes this into account, but it has now been adapted for petrol engines, especially the ZDZ 80 and its matching exhaust system. The moment arms have been modified slightly in favour of balanced flying characteristics and good aerobatic capability. The fuselage and fin are of GRP / CFRP sandwich construction, and the fuselage features factory-fitted undercarriage support bulkheads and rudder post. The wing and tail panels are of conventional balsa-skinned foam construction, and incorporate support ribs and GRP / CFRP reinforcements. The ailerons are integrally hinged using the »elasto-flap« method, and servo-lock mounts are factory-fitted. Machined plywood bulkheads and reinforcements for the engine mounting are also supplied, but they are not installed at the factory, as they may need to be modified if you prefer to use an engine of a different make or type. Canopy frame, wheel spats, undercarriage unit and spinner are also supplied as GRP / CFRP reinforced parts. The kit includes all small items required to complete the basic finished model, with the exception of the power system and RC system components.

All GRP parts pigmented or painted red, wing and tail panels film-covered in red. This version of the kit includes all accessories and small items required to complete the basic finished model, with the exception of the power system and RC system components. The model is now available designed and prepared for petrol engine power.

Comprehensive building instructions in German, English and French. All GRP / epoxy components supplied in red: fuselage, fin, cowl, spinner; the wheel spats and canopy frame are white. Fuselage and fin sandwich-reinforced. Hybrid GRP / CFRP main undercarriage unit and tailskid. Reinforced balsa-skinned styrofoam sandwich wing and tailplane panels, factory-covered in red film, machined bulkheads, all linkage components including fueltank and tank fittings, and all parts required to complete the basic model.

Elevator
Rudder
Ailerons
Throttle

Wingspan approx. 2420 mm
Overall length approx. 2190 mm
All-up weight according to fittings min. approx. 9 kg
Power system ZDZ 80
Petrol engine min. approx.: 60 - 100 cc