Hi all,
in use with the belgian police helicopters and hopefully soon also in our squadron are ortoplastics.
The follwing link is only to give you the idea of an ortoplastic - itīs in german and not from the manufacture we might get ours from.
http://www.inear.de/files/phpyjVzYr.pdf
Systems you can get:
system made to fit your ear by making it specially for your ears.
specified sound proofing for the model you fly, i.e. the frequencys, which are produced by the bird are filtered out do to special drillings (gearbox, rotor, engines)
have inbuild earphones, so you can understand radiotransmissions etc.
could have inbuild microphone, so you can stick your head outside (winching) with no windnoises coming throug the mike.
Iīve heard the quality of the belgian police equipment and was stunned.
The mic took the speach from inside the ear!!!!
Greetings Flying Bull