Fix alternate flight level to FL100 max

mission_analysis/src/standard_mission/fuel_handling/fuel_handling.cpp

@@ -209,23 +209,23 @@ void standard_mission::set_alternate_fuel(double* aircraft_mass) {
         EndnodeReadOnly<int>("energy_carrier_ID").read(rtIO->acxml.at("requirements_and_specifications/design_specification/propulsion/energy_provider/cruise")).value();
     /* Alternate fuel: Calculation of the flight altitude from alternate */
     double alternate_FL = this->mission_file->alternate_distance * 0.8 / (1. / tan(convertUnit(DEGREE, RADIAN, 5.)) + 1. / tan(convertUnit(DEGREE, RADIAN, 3.)));
-    if (alternate_FL > convertUnit(FOOT, METER, 30000.)) {
-        alternate_FL = convertUnit(FOOT, METER, 30000.);
+    if (alternate_FL > convertUnit(FOOT, METER, 10000.)) {
+        alternate_FL = convertUnit(FOOT, METER, 10000.);
     }
-    double climb_mach(convertUnit(CALIBRATEDAIRSPEED, MACH, convertUnit(FOOT, METER, 10000.), this->atm, this->climb_speed_below_FL100));
+    double climb_mach(convertUnit(CALIBRATEDAIRSPEED, MACH, alternate_FL, this->atm, this->climb_speed_below_FL100));
     /* Alternate climbing: Estimation with the values at 10.000 ft */
-    this->engine.calculate_N1_with_penalties(energy_carrier_id, convertUnit(FOOT, METER, 10000.), climb_mach, this->atm, 1., "climb", 0., 0.);
+    this->engine.calculate_N1_with_penalties(energy_carrier_id, alternate_FL, climb_mach, this->atm, 1., "climb", 0., 0.);
     /* Calculate aerodynamics */
-    double L_over_D(this->aero.getCruiseLoverD(climb_mach, convertUnit(FOOT, METER, 10000.), 0., *aircraft_mass, "clean", this->atm));
+    double L_over_D(this->aero.getCruiseLoverD(climb_mach, alternate_FL, 0., *aircraft_mass, "clean", this->atm));
     if (sophistication_level != UNSOPHISTICATED) {
         double current_cg(get_current_cg());
         L_over_D = this->interpolateViaCoG(current_cg, L_over_D,
-            getAlternativeAero(current_cg)->getCruiseLoverD(climb_mach, convertUnit(FOOT, METER, 10000.), 0., *aircraft_mass, "clean", this->atm));
+            getAlternativeAero(current_cg)->getCruiseLoverD(climb_mach, alternate_FL, 0., *aircraft_mass, "clean", this->atm));
     }
     /* Calculate the specific fuel consumption */
     double SFC = this->engine.get_aircraft_fuelflow(energy_carrier_id) / this->engine.get_thrust_aircraft(energy_carrier_id);
     /* Alternate climbing: Estimate the climbing duration with 5 deg climb angle */
-    double climb_time_altn = alternate_FL / (tan(convertUnit(DEGREE, RADIAN, 5.)) * convertUnit(MACH, CALIBRATEDAIRSPEED, convertUnit(FOOT, METER, 10000.), this->atm, climb_mach));
+    double climb_time_altn = alternate_FL / (tan(convertUnit(DEGREE, RADIAN, 5.)) * convertUnit(MACH, CALIBRATEDAIRSPEED, alternate_FL, this->atm, climb_mach));
     /* Calculate the alternate climbing fuel mass */
     double m_climb_altn = *aircraft_mass * expm1(climb_time_altn * SFC * G_FORCE / L_over_D);
     /* Calculate the alternate fuel mass */