Nothing Fancy really just conceptualizing some helmet designs and thought I'd share.
I beleive the order from Left to right is:
Reconnaissance pilot Helm
The Standard Pilot Helm
Ground Crew helmets which are color coded to a specific job very much like that u see on Aircraft Carriers. The Ground Crew Cheif wears a Pink one for easy recognition.
Bombadier Helmet and Lastly the Commanders helmet.
The Horn represents Rank and is only reserved for veteran Commanders. Why a Horn? I think I was influenced by ancient Samurai Helms. Or was it Gundamn.....no it was Samurai.