The FLASH propeller range manufactured by Duc Hélices feature an innovative design, specifically about its twisting axis and center of pressure.Their aerodynamic design allows a "constant speed" effect, limiting variations in engine speed between on ground and in flight. They also enable high efficiency throughout the flight envelope, improved takeoff and climb rate due to higher engine speed, high cruise extension in flight, high engine efficiency and user comfort.
The blades and the hub of the FLASH propeller range are manufactured according the DUC Hélices company technologies, from unidirectional layers of carbon fibers prepreg epoxy resin. Their composite structures are defined to obtain the maximum stresses in torsion and bending. Therefore "constant speed" effect is not related to deformation of the blade but its geometry and specific profile. Due to its specific geometric definition, excellent performance is obtained in both aerodynamic and acoustic, but also in consumption. The leading edge of the FLASH blades is equipped with a metallic shielding in Inconel®, a refractory stainless material with a very high surface hardness.
Depending on the model, FLASH propellers are offered with two, three or four blades, in tractor or pusher configurations (right & left rotation) and different diameters.
For additional information please refer to the supplied documentation.