Sorry, guys, I realize that this question was asked here for years but I surprisingly found that search function is disabled on this forum, so:
could somebody point me out to the place where helicopter helmets are discussed. I'm looking for helmet for small helo/ enclosed autogyro with small cockpit.
Thanks in advance,
Alex
Here's the thread you wanted.
All part of the world-famous Rotorheads service. 
Heliport