SAE AS4950B
SAE AS4950B 2007-MAR-01 R Desgn and Performance Crtera Transport Arcraft Portable Megaphones
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This SAE Aerospace Standard (AS) provides design criteria and performance tests for portable, handheld, batterypowered, electronic megaphones used by aircraft crew members to provide information and guidance in the event of an aircraft emergency or other non-routine situation.