I'll take your word for the history, but I'm still a little confused. The horizontal stab on the C+'s I've seen aren't at all the same as an A tail with a gurney, nor a B tail. They're much smaller, as is the vertical tail.

I didn't really mean to start a long thread, I was just curious about the full gurney along with the smaller size. What I don't know about aerodynamics would fill a very large book. :)

GLSNightPilot,

The C+ tail is identical to the B tail in every way except angle of incidence of the horizontal tail, which is adjusted about 2 degrees to keep the same nose attitude for both models.

OK, it changed with the B model. I've never seen one of those in real life.

O'Beefer (not one of my old beefers I hope...)

As far as I know it's to help out with tail rotor roll in forward flight.(amongst other things)

AS350 tail rotor roll gives right wing low, so as the horizontal stab gives a nose up pitch via lift acting 'downwards' in flight, then if the port side of horizontal stab gives more lift 'downwards' therefore opposite rolling moment to tail rotor roll!

Alternatively it could be there to stop tools rolling off!:D