//*******Begin For Loop*********
for (exh_v=3.0; exh_v<5.05; exh_v +=0.1){   // vary the exhaust velocity from 3.0 to 5.05

 fwt = fuelwt(pwt,exh_v);             // run the function to find fuel weight

 cout << pwt<<'\t' << exh_v << '\t' << fwt << endl;       //print out
}                                   //close loop

pwt=2000;                           // declare payload as set 2000 to be used in for loop

//*******Begin For Loop*********
for (exh_v=3.0; exh_v<5.05; exh_v +=0.1){   // vary the exhaust velocity from 3.0 to 5.05

 fwt = fuelwt(pwt,exh_v);             // run the function to find fuel weight

 cout << pwt<<'\t' << exh_v << '\t' << fwt << endl;       //print out
}                                   //close loop


      system("PAUSE");              // pause program to allow time to see results
      return 0;                     // return 0 from main
}                                   // end program and main