AND10581 (REV. C), AIR FORCE-NAVY AERONAUTICAL DESIGN STANDARD: RIM CONTOUR-20 X 4.4, TYPE VII, EXTRA HIGH PRESSURE, LANDING GEAR WHEEL (17 JUN 1969)
AND10581 (REV. C), AIR FORCE-NAVY AERONAUTICAL DESIGN STANDARD: RIM CONTOUR-20 X 4.4, TYPE VII, EXTRA HIGH PRESSURE, LANDING GEAR WHEEL (17 JUN 1969).