Airport obstacle surfaces

Journal of Advanced Transportation, Fall, 2009 by Scott Litsheim, Xiaosong Xiao

Scott Litsheim and Xiaosong Xiao, HTNB Corporation, Minneapolis, MN, USA

Table 1. Circling Approach Radii

              TERPS        PANS-OPS
            Radii from    Radii from
Aircraft    Threshold     Threshold     Difference
Category       (NM)          (NM)          (NM)

CAT A          1.30          1.68          0.38
CAT B          1.50          2.66          1.16
CAT C          1.70          4.20          2.50
CAT D          2.30          5.28          2.98