National Geographic : 1943 Dec
IiviI Air ratrol As Michigan Wing Mobilizes, Each Plane Bears the Civil Air Patrol's Emblem, Red Propeller and White Triangle on Blue Disk CAP's 85,000 volunteers operate from 1,000 fields. Since Pearl Harbor some 30 have given their lives doing war work. At sea,CAP pilots have spotted some 150 U-boats, bombing several, and have located shipwrecked sailors. Over land, they have patrolled forest fires (Plate VIII).