NATIONAL ADVISORY COMMITTEE  FOR AERONAUTICS

DESIGN AND TESTS OF A SIK-STAGE AXTAL-FLOW COMPRESSOR HAVINGA TIP SPEED OF 550 FEET PER SECOND AND AFLAT OPERATING CHARACTERISTIC AT CONSTANT SPEED By Willard R. Westphal and John W. Maynard, Jr.
Langley Aeronautical Laboratory Langley Field, Va.