[kingsak]

Looking for a good Freeware chart viewer that will let me load/store approach plates and arpt. diagrams
for use while in flight and can be change on the fly.

[AS-487 T. Headlam]

Hi,
There is a good freeware chart viewer which I use religously.
http://code.google.com/p/fscode/wiki/PDFKneeboard

Its a simple module and can read any type of .pdf files which charts mainly consist of.
http://screenshotuploader.com/s/0aHPT5MoyNA/

Hope this helps your needs.