An arrangement of the wilson epicyclic gearbox giving four forward and one reverse speed of shaft D for an input speed of shaft E is shown in fig .3.in 1st gear Ii is fixed.in 2 gear I2 is fixed .in 3 gear S3 is fixed .top gear F is locked to Gi, reverse gear I\is connected to S4 and h is fixed .the number of teeth on the gears are :Si=20,S2=20,S3=17,Sa=26,h=70,h=70,h=61 and 74=70.
Calculate all the gear ratios. if 22.1 kw is transmitted in 1st gear at an engine speed of 3000 rpm, Evaluate the required fixing torque on the annulus
