Insignia used by the <a href="https://en.wikipedia.org/wiki/Civil_Air_Patrol" class="extiw" title="w:Civil Air Patrol">Civil Air Patrol</a> during the early part of World War II. It features a red propeller imposed on the blue-and-white Civil Defense insignia.
Vector version: <a href="//commons.wikimedia.org/wiki/User:Fred_the_Oyster" title="User:Fred the Oyster">Fred the Oyster</a>, Original version: Army Institute of Heraldry; Courtesy of Civil Air Patrol Historical Foundation
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