If you haven't heard of heliboarding wait until you see this.This beauty is The AvA 299 DROP it's a helicopter designed to take snowboarders to locations not accessible by normal lifts. The entire cabin can lower them enough to leap out and carve their way across a mountain.It comes equipped with coaxial rotor blades that spin in opposite directions to provide more power and negates the need for a tail rotor for stabilization. The design also addresses a number of problems with single blade rotors.
Retreating blade stall – Reduced
Medium frequency vibrations – Reduced
High frequency vibrations – None
Anti-torque system failure in forward flight – Eliminated
Anti-torque system failure while hovering – Eliminated
The reduction and elimination of these hazards are the strong points for the safety of coaxial rotor design.