<key>NSHumanReadableCopyright</key>
<string>${MACOSX_BUNDLE_COPYRIGHT}</string>
+
+ <!-- needed for FlightGear launch to function -->
+ <key>NSMainNibFile</key>
+ <string>MainMenu</string>
+ <key>NSPrincipalClass</key>
+ <string>NSApplication</string>
</dict>
</plist>