The ZIP download link consists of a Adobe Acrobat format with the complete guide. The files are compressed and one ortho tile (representing 1 degree latitude x 1 degree longitude) has a file size of about 1. The stills attached here also present in the PDF. You can mix zoom levels though, so maybe use ZL16 as a base and a higher zoom level only where you realy want that, ZL 17 does look good at low altitudes though )įor anyone with a main interest is Western Europe there is a web site that makes available ZL 16 data that has already been processed and uploaded to share. So the same coverage at ZL 17 would require something like 264 GB. I have installed ZL 16 scenery for England, Wales and part of Scotland and the memory requirement on my ssd is 66 GB.

ZL 17 doubles that, to 1.2 metres per pixel, so there is a 4x increase in the memory required to store that data. Zoom level 16 corresponds to a resolution of 2.4 metres per pixel.

Just so people don't get too carried away - photorealistic scenery can gobble up your hard drive memory in no time.

Download ortho4xp x plane 12