RMQSI Answers ForumCategory: General Questions and CommentsARW environment in Flight Hours?
mbd asked 11 years ago


I am computing the MTBF of an equipment for an helicopter with an ARW environment, based on the MIL HDBK 217 F. I must give a result in Flight Hours (FH).
What is the unit given by the MIL HDBK? Is it FH or OH (operating hours)?