An airplane is traveling at \(550 \mathrm{mph}\) at an altitude where the ambient pressure is \(6.5 \mathrm{psia}\). The exit area of the jet engine is \(1.65 \mathrm{ft}^{2}\) and the exit jet has a relative velocity of \(1500 \mathrm{ft} / \mathrm{sec}\). The pressure at the exit plane is found to be \(10 \mathrm{psia}\). Air flow is measured at \(175 \mathrm{lbm} / \mathrm{sec}\). You may neglect the weight of fuel added. What is the net propulsive thrust of this engine?