NAVWEPS OD-801-80  BASIC AERODYNAMICS  SURFACE TUFT PHOTOGRAHS FOR  A SWEPT, TAPERED WlNG  60° DELTA, AR=2.31, A=0  a = 0 DEGEES  /STALL  .  d  a =32 DEGREES  FROM NACA TN 2674  Figure 1.33. Std Patterns (sheet 8 018) 