This paper investigates dynamically under some simplifications the main features in the early stage of three-points-landing i.e. the falling motion from the flattened-out level flight (if any) and bouncing after the touch to the ground, considering the elastic force of the landing gears and the clamping forces due to inner friction of the gears as well as due to air resistance of the main plane. How the pilot's skill of landing manœuvre and the characteristics of the landing gears have influences on bouncing of the aeroplane is also examined, and further the shock load factor in landing is theoretically calculated and compared with that which is required by the Japanese Regulation for the Strength Calculation of a Civil Aeroplane.
Conclusions obtained, see Chapter VIII.
Journal of the Japan Society of Naval Architects and Ocean Engineers