4. Consider a passenger jet with W-300,000N. The preliminary sizing of the landing gear of the jet is to be completed based on a level landing condition as per FAR25. Assuming landing occurs at L = W, V =3 m/s with n=0.4, n=0.78, S=0.025 m, and =1.5: a) Estimate the size of the stroke in cm before adding any margin of safety 5 marks b) Using the empirical equation given in the class notes, estimate the preliminary diameter of the shock strut (ds) in cm assuming 2 struts on the main landing gear (MLG) 5 marks c) From the corresponding table given in the class notes, select the smallest type VII tire that would be suitable for the above aircraft if the maximum static load on the MLG is 90% of WL (N/B=0.9). List the width, overall diameter, and wheel diameter of the selected tire in inches. Assume two wheels per strut. 5 marks