fix a conversion bug

aman/config/AircraftPerformance.py

@@ -17,12 +17,12 @@ class AircraftPerformance:
 
             aircraft = PerformanceData(key)
 
-            aircraft.SpeedAboveFL240 = config[key]['speedabovefl240']
-            aircraft.RodAboveFL240 = config[key]['rodabovefl240']
-            aircraft.SpeedAboveFL100 = config[key]['speedabovefl100']
-            aircraft.RodAboveFL100 = config[key]['rodabovefl100']
-            aircraft.SpeedBelowFL100 = config[key]['speedbelowfl100']
-            aircraft.RodBelowFL100 = config[key]['rodbelowfl100']
-            aircraft.SpeedApproach = config[key]['speedapproach']
+            aircraft.SpeedAboveFL240 = float(config[key]['speedabovefl240'])
+            aircraft.RodAboveFL240 = float(config[key]['rodabovefl240'])
+            aircraft.SpeedAboveFL100 = float(config[key]['speedabovefl100'])
+            aircraft.RodAboveFL100 = float(config[key]['rodabovefl100'])
+            aircraft.SpeedBelowFL100 = float(config[key]['speedbelowfl100'])
+            aircraft.RodBelowFL100 = float(config[key]['rodbelowfl100'])
+            aircraft.SpeedApproach = float(config[key]['speedapproach'])
 
             self.Aircrafts[aircraft.Icao] = aircraft