$5\mathrm{.}17$ An antisubmarine jet aircraft above the Atlantic Ocean is searching for enemy submarine. This aircraft has the following data:

Tmax $=64$ kN$,$ S $=41$ m$2,$ mTO $=17,000$ kg$,$ CLmax $=2\mathrm{.}2,$ K $=0\mathrm{.}09,$ CDo $=0\mathrm{.}025,$ mf $=5,000$ kg$,$ C $=0\mathrm{.}84$ lb$/$h$/$lb

a$.$ CALCULATE the maximum speed at sea level