http://modelistika.com/
http://modelist.bg/forum.php
http://rc.bovyanski.com/forum/index.php
http://rc-bulgaria.com/index.php
http://model.airgroup2000.com/
http://www.airgroup2000.com/forum/index.php?f=181
http://www.krilebg.net/forum/viewtopic.php?f=9&t=251
http://hobimodeli.com/forum/viewforum.php?f=14