US Sectional Charts in Lat/Lon Grid Reprojections
These files contain continental US sectional charts reprojected in latutude/longitude rectangular grids. The CMR format is for use with SeeYou. Low resolution JPEG files are for use with Google Earth using using these instructions. The GeoTIFF files can be used with Geographical Infomration System (GIS) applications (such as Global Mapper) that support that format.
The number embedded in the file names (if present) is the edition number of the sectional.
US Sectional Charts for GlidePlan
For GlidePlan you need to download both the .jpg and .tfw files, and install them in a subfolder of GlidePlan's map folder. Request a custom GlidePlan map here.