Dear Forum... i'm not a pilot but I have to find this information for a work. so I found on the
www.nifc.gov site a glossary (
http://www.nifc.gov/ihog/pdf/2006glossary.pdf) which devides helicopters into light, medium and heavy - according to the FAA and additionally with the water-carrying capacity in the ICS helicopter typing system. But I need now the information in which FAA document(s) these classifications of the gross weights - have searched the FAA site but have not found anything yet. Maybe searched not good enough.
Would be glad if u can help me out
greetings from austria