Helicopter Fan Blade RTP Company End-Use Case Study Long fiber polypropylene Reduced cycle times save customer money Lightweight structural compound replaces thermosets There is a growing use of thermoplastics as alternative materials to costly metal and prepreg composites for the aircraft/aerospace industry. Reinforced thermoplastics have the properties to meet specifications for many interior and exterior applications. Injection Molded Helicopter Fan Blade An injection molded fan blade has been developed for use on McDonnell Douglas helicopters equipped with NOTAR fan systems. NOTAR uses a constant circulation pressure generated by the fan to counter main rotor torque. The system eliminates the need for a tail rotor. In an effort to reduce cost, a hand lay-up composite blade, which consi

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