fix(models): update the fleet type table (SF34 and SB20 draw the ATR 72; no tower model)

public/models/fleet/types.json

@@ -809,7 +809,7 @@
    7.7
   ],
   "SF34": [
-   "be20",
+   "at72",
    19.73
   ],
   "BE40": [
@@ -893,7 +893,7 @@
    29.87
   ],
   "SB20": [
-   "be20",
+   "at72",
    27.28
   ],
   "C500": [
@@ -1462,10 +1462,6 @@
    "van",
    5.5
   ],
-  "C0": [
-   "tower",
-   60.0
-  ],
   "C3": [
    "tower",
    60.0