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+//propeller//
+pathname=get_absolute_file_path('10.14.sce')
+filename=pathname+filesep()+'10.14-data.sci'
+exec(filename)
+//Propeller Thrust(in MN) :
+Ft=P/V
+//Required power input to the propeller(in MW):
+Pin=P/Eff
+//Calculating value of D(in m):
+nD=V/J
+D=(Ft*10^6/p/(nD)^2/Cf)^0.5
+//Operating speed (in rpm) is given by:
+n=nD/D*60
+printf("\n\nRESULTS\n\n")
+printf("\n\nDiameter of the single propeller required to pwer the ship:%.3f m\n\n",D)
+printf("\n\nOperating speed of the propeller: %.3f rpm\n\n",n)