— Improved performance. As opposed to metal, which is hard to shape, composite materials can be molded into smooth, complex shapes. VHA 206 main rotor blades incorporate an efficient laminar-flow airfoil and slight twist along the length of the blade for precision placement of the blade’s aerodynamic center for better flight performance. Pilots will feel the difference as the blades respond quicker and less input is needed to perform the same tasks.
— Increased speed. As a result of the VHA blade’s improved performance and increased efficiency of the airfoil, operators may see a slight increase in speed (1 to 3 knots) when performing the same routes compared to the metal blades. Some operators report speed increases of 3-5 knots when VHA’s main rotor blades are paired with our tail rotor blades.
— Consistent performance over time. As an aluminum rotor blade spins, it contacts air and dust particles that cause its leading edge to erode and its airfoil to become less efficient. Over time the airfoil can become so eroded that performance suffers, and often the leading edge is filed during maintenance in an attempt to clean up the airfoil. VHA main rotor blades incorporate a set of abrasion strips along the entire length of the leading edge, including the rounded tip. These replaceable electroformed nickel and Inconel strips protect the leading edge from erosion, ensuring that the laminar-flow airfoil delivers consistently high performance through the life of the blade.
— Increased corrosion resistance. VHA main rotor blades consist of a carbon-fiber spar, carbon fiber skin, foam core, and compressed fiberglass root and tip. None of these materials corrode, and all have been tested in accordance with FAA guidelines for withstanding heat, cold and wet saturation. The only metal components on the blade are titanium root grips, which are coated with a corrosion preventative and replaced during required overhauls, and nickel/Inconel abrasion strips, which are also inherently corrosion-resistent.
— Increased damage tolerance. Composite blades are already highly damage-tolerant, and VHA blades are built with additionally high margins. No more measuring dents, nicks, or scratches in the skin. Instead, tap for voids in the carbon measuring over 1 inch (2.3 cm). Most damage to composite blades is repairable, and often the same damage that would cause a metal blade to be scrapped can be repaired on a composite blade.
— Longer service life means decreased costs. For JetRanger operators, a service life of 10,000 hours with no blade overhauls means your direct operating costs decrease by 50% when your blades go to life compared to metal blades. LongRanger operators get 4x the service life compared to metal blades; every 4,000 hours you replace grip plates and hardware, then keep flying instead of buying a new set of blades. With a service life of 16,000 hours, this may be the last set of 206L main rotor blades you buy.
— More knowledgable support. When you call VHA for support, you are connected to the engineers who designed, tested, and flew the blades. Our engineers are also involved in blade production, installation, track and balance, and maintenance.
Ready to commit? Still have questions? Call us at 1.480.483.4202
or email info@vanhornaviation.com
for more information. Contact any of our distributors for availability and best pricing.
