Position light system dihedral angles.
CFR · 2024-01-01 · US · Title 14
(a) Except as provided in paragraph (e) of this section, each forward and rear position light must, as installed, show unbroken light within the dihedral angles described in this section. (b) Dihedral angle (c) Dihedral angle (d) Dihedral angle (e) If the rear position light, when mounted as far aft as practicable in accordance with § 25.1385(c), cannot show unbroken light within dihedral angle
official document · source cfr-2024 · id 14:§ 25.1387