The real long term damage is shooting Chris. most of the hours in a recip were with earphones of sometype - whereas I have careless guys in a duck blind or hunting quail let one loose close to an ear... a lot of times.
I don't imagine that the Blackhawk or a CH 53 would be much less punishing. At least I haven't spent a lot of time next to an amplifier for a head banger group..
Thats true. Whenever I would go shooting I allways had ear plugs. I think that most of my hearing loss comes from working on the flightline and flying but I am sure that all those Metallica concerts have not helped...