This is a set of 290mm Protek fiberglass main rotor blades designed for helicopters that use 4.5mm main blade holders and a 3mm mounting bolt. Manufactured of glass fiber these blades are rigid and light and the fully symmetrical airfoil offers improved flight performance and stability for all flight attitudes. Glass fiber blades are recommended for advanced and 3D pilots who are looking for high performance at economical prices. The use of Glass or Carbon fiber blades is required over wood blades when using higher headspeeds.

Specifications:

    * Weight: ~19 grams
    * Length: 290mm
    * Chord: 33mm
    * Grip: 4.5mm
    * Bolt: 3mm