The Determination of Orifice Parameters for Shock Absorbers: An Approximate Method of Evaluating the Area and Predicting Landing‐Gear Performance from Step‐by‐Step Calculations

THE determination of orifice parameters was discussed in great detail in an article by G. A. Dirac, ‘The Explicit Determination of Orifice Parameters in Shock Absorbers’, published in AIRCRAFT ENGINEERING, Vol. XIX, August 1947, pp. 258–262. The methods there suggested involve a great deal of numerical work, and it has been felt that some rapid approximate method for determining the orifice parameter would be more satisfactory. The present article represents an attempt to obtain a simple explicit relation for this parameter.