Design Configuration of Helicopter Rotor Blade
#1

presented by:
P Mahendranath

Abstract
Helicopter performance depends on the design of the rotor blades such as length of the blade, selection of airfoils and blade material. For heavy lifting, a large rotor works best, but short blades reduce drag and ultimately allow for higher maximum speeds. There is an approach to implement both configurations in one design where the design en-counter huge centrifugal forces, requiring large actuators to pull the rotors in. so for high lifting performance helicopter requires large rotor blade which will produce more drag and noise. And as said earlier the tilt rotor approach en-counter huge centrifugal forces, requiring large actuators. By introducing BERP series rotor blades we can avoid such difficulties in achieving high lift, speed, best hovering and less drag. The design of such blade of moderate twist having an improved tip utilizing a combination of sweep, taper and anhedral to improve hover performance by unload the blade tip and reducing the strength of the tip vortex and displacing the tip vortex away from the blade surface. This report reviews the design features of elevating drag, noise, fuel consumption by placing various airfoil sections along the length of the blade
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#2
friends,
please send the full report of helicopter rotor blade.
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