Hi Conway B,
The Bell 222 and the Bell 214 ST had this type ot collective and throttle design .... and in my opinion a very good design it is!
The collective was designed to move slightly more as a Fwd/Aft movement than Up/Down as more commonly used in current Helo practice.
The two thottle twistgrips arranged at the top of the collective (with throttle frictions) with No1 (left engine)to the outside and No2 (right engine) to the right of the No1 (ie to the left of the collective head).
In operation it much more intuitive to reach for the correct throttle in an emergency as may be required ... IMHO this should be standard for all Helos (?????). Collective movement also designed to remove/reduce pilot induced vertical overcontrolling (??? ... so I was told by them "good ol boys in Ft `Worth !).
I flew this set up on the Bell 222UT and thought it BRILLIANT!
Cheers
