An aircraft powered by a turbojet engine is used to transport
seriously injured people to hospitals. The pilot uses the
brakes during the loading process to hold the aircraft. How much
force that must be applied to the brakes?
What is known:
- Fuel is burned at a rate of 0.1 kg/s and
has a heating value of 42,000 kJ/kg.
- The compressor has a compression ratio of 10.
- Air enters the engine at a rate of 8 kg/s.
- The ambient air is 27oC and 100 kPa.