Does anyone honestly know how much the Spitfire is better than the Hurricane? I'd think that double the Hurricats would be on par or at least a little less powerful than Spitfires.
Getting to the top and finishing the your own airport is fun. Even if you have a higher crash rate than land rate after you land your first space liner, you still will have great for your popularity until you close the game XD.
Kinda cool cheat for the bridge level: Get the first part of the bridge and "scoop" up the car and bring it across. Now you don't need to worry about it drowning!