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Used to convert military helicopter helmets to civilian use

Designed to interface David Clark H3530/H3531 headset-mic to the aircraft

The microphone includes an adjustable amplifier that allows users to fine-tune output to match aircraft audio systems

LED Progressive Indicators - indicates status of testing

Propellers and Propeller Systems aerocosmetics SearchTag and AHRS artificial horizon forAn EASA Part 66 147 approved manual on propellers and controls fully qualifying as Module 17 up through level 3. A very in depth manual on modern propellers and propeller control systems covering from fixed pitch wood through state of the art full feathering, reversing, FADEC controlled metal and composite systems. All systems are covered including various types of pitch control, synchronization, ice control, vibration and resonance, maintenance and