5. An adjustable tow bar connecting the tractor unit H with the landing gear J of a large aircraft is shown at Fig. 5. Adjusting the height of the hook F at the end of the tow bar is accomplished by...

Extracted text: 5. An adjustable tow bar connecting the tractor unit H with the landing gear J of a large aircraft is shown at Fig. 5. Adjusting the height of the hook F at the end of the tow bar is accomplished by the hydraulic cylinder CD activated by a small hand pump (not shown). For the nominal position shown of the triangular linkage ABC, calculate the force P supplied by the cylinder to the pin C to position the tow bar. The rig has a total mass of 50 kg with centre of mass at G and is supported by the tractor hitch at E. Assume there is no bending of the pin at E and ACB is not connected to the horizontal link EF [ Ans : 298 N ]. Fig. 5 H AB = AC = 500 %3D 300 30° B 750 600 200 Dimensions in millimeters