I was trying to decide which projector setup would be best to achieve the above view and have done a few idea mockups..
Top left you can see a close approximation of the wanted view..To keep the boxes to scale for these rough calculations I opted for 72cm as its simple to convert to 720pixels..
So far the closest match is actually 2 projectors in landscape 16x10.. To utilise 3 projectors would mean going with 4x3 mode, I know my projectors can handle 4x3 but not sure if the video card or FSX will like it..
The 2 projector option looks the best interms of size but I have the feeling that the curve of the screen is going to cause focus issue..