§ 29.505. Ski landing conditions.
146 words·~1 min read·
/us/cfr/t14/s§ 29.505·A research copy — for the controlling text, always check the official state or federal source. Not legal advice.
If certification for ski operation is requested, the rotorcraft, with skis, must be designed to withstand the following loading conditions (where P is the maximum static weight on each ski with the rotorcraft at design maximum weight, and n is the limit load factor determined under § 29.473(b)):
(a)Up-load conditions in which—
(1)A vertical load of Pn and a horizontal load of Pn/4 are simultaneously applied at the pedestal bearings; and
(2)A vertical load of 1.33 P is applied at the pedestal bearings.
(b)A side load condition in which a side load of 0.35 Pn is applied at the pedestal bearings in a horizontal plane perpendicular to the centerline of the rotorcraft.
(c)A torque-load condition in which a torque load of 1.33 P (in foot-pounds) is applied to the ski about the vertical axis through the centerline of the pedestal bearings.