A static thrust structure is to be designed for a turbofan engine. The following standard engine test conditions are given: intake air velocity: 700 ft/s, exhaust gas velocity: 1640 ft/s, intake cross section area: 10 ft^2, intake static pressure: 11.4 psia, intake static temperature: 480 degree R, exhaust gas pressure = 0 psi. What is the thrust the engine will produce?