Hi, I am going on a one hour flight, on a Bombardier Q400 which is a modern turboprop. I travelled on one a couple of years ago, but that was before my tinnitus got real bad. I found the following information: http://www.austrian.com/Info/Austri.../Other Formats/Q400_and_the_Environment1.ashx I plan to use a Bose noise cancelling headset, and sponge type hearing protectors. I am worried the aircraft will spike my tinnitus, but I don't really have any choice, I have to travel, because my workplace has deemed it necessary that I take some upgrading courses. The last time I took that aircraft, I walked up and down the aisle to try to determine where the quietest spot was, and it seemed like seat 11B was least noisy. This matches with the graph on the above link, which shows 76db at aisle seat 11B. Hearing protection should knock that down by 20db I would guess. Should I be worried? And is there anything else I can do to protect myself. Or am I worried about nothing?