Q. Helicopter Statistics
Helicopter Statistics from BTS
BTS' traffic data is for certificated air carriers only, so there would be little if any data on helicopters, and then only for certificated carriers. For example, only 6876 of 11,551,672 departures (domestic and international) in our database in 2008 were flown by helicopters.
To see this data, go to the T-100 Segment (All Carriers) database: (http://www.transtats.bts.gov/Fields.asp?Table_ID=293)
Click "Analysis" next to "Aircraft Group", then set "Filter variables" to "DepPerformed (or passengers)," set "Filter Year" to 2008 and recalculate.
For general aviation helicopter data, please see the FAA's General Aviation and Part 135 Activity Survey: http://www.faa.gov/data_research/aviation_data_statistics/general_aviation/ (http://www.faa.gov/data_research/aviation_data_statistics/general_aviation/)
You might also want to consult the commercial publication "Aerospace Facts and Figures."