One hell of a way for Boeing to install cockpit heating
SAS.
Upon arrival in country we noticed one of the pilots had an unusual hair cut, a quarter or so inch of hair removed running around his head just above both ears. Round had come in through the windscreen, entered the space twix helmet and head, ran around his head/helmet and exited other side and out through the windscreen. Closest they got to me was a shot in the back in an ambush where 50% of the troops died stepping off.
And there's another good reason for the captain to occupy the righthand seat in a helicopter: uninformed gunmen will target your co-pilot first!
Tradition in US Army slicks was for the aircraft commander to occupy the left seat, but I always rode right seat cause Charlie would reckon I was the copilot.
To be honest, I had other reasons for preferring right seat.