You need
An-26
Avsim.com ID 34078 (base package)
and
antonov_an24rv.zip
Follow the next steps exactly, or you will end up with non functional ADF gauges and other problems
Install both packages
install the update (an24_patch1.zip), makes it somewhat flyable in FS2004
Install the gauge file from (
http://www.avsim.ru/files.phtml?action=download&id=2224)
manually edit the panels to get the latest files to be used and remove old versions of the main gauge set.
More info in english
here. ignore the discussion about flight dynamics. that's a work-in-progress
An-30 uses another panel, with the same gauges
http://www.avsim.ru/files.phtml?action=download&id=1703install and edit cfg file to use latest version.