A music wire helical compression spring is needed to support 89-N load after being compressed 50.8 mm. Because of the assembly considerations the solid height cannot exceeds to 25.4mm and the free length cannot be more than 101.6mm. Determine all the parameters for the designing of spring. Tabulate all the parameters. And suggest the diameter. Make a satisfactory prior decision, in which some are suggested as below. Suggested music wire No from 28 to 33. Music wire material A228.