b. A twin engine (two engines) commercial aircraft (Fig. 1b) flies straight and level maintaining constant direction due north and producing 120KN of total thrust. Suddenly right engines fail. In this...

Extracted text: b. A twin engine (two engines) commercial aircraft (Fig. 1b) flies straight and level maintaining constant direction due north and producing 120KN of total thrust. Suddenly right engines fail. In this case to maintain the same direction pilot deflects the rudder to maintain the direction of the flight. Determine the force required from the rudder to maintain the direction of the flight. The tail arm It = 19.6m, the distance between engines is 9.0m. Fig. 1b