3.3 A naval aircraft is powered by a turbojet engine, with provision for flap blowing. When landing at 55 m/s, 15 per cent of the compressor delivery air is bled off for flap blowing and it can be assumed to be discharged perpendicularly to the direction of flight. If a propelling nozzle area of 0-13 m² is used, calculate the net thrust during landing given that the engine operating conditions are as follows. Compressor pressure ratio 9-0 Compressor isentropic efficiency 0-82 Turbine inlet temperature Turbine isentropic efficiency Combustion pressure loss Nozzle isentropic efficiency Mechanical efficiency Ambient conditions 1275 K 0-87 0-45 bar 0.95 0.98 1 bar, 288 K The ram pressure and temperature rise can be regarded as negligible. [18-77 kN]