The sycamore that used to stand outside the OCU
IIRC that one was unusual because it had two collectives as opposed to the single collective in the middle. Both twist grips were in line with the collective whereas on the single collective the throttle was cranked so as to be at right angles across the cockpit..
All the Sycamores I flew had a single collective. In the RHS one had one's hand on top turning the throttle forward to increase power and in the LHS one had their hand underneath pulling the palm back to increase power. Irrespective of which seat one occupied the hand action tied in with raising and lowering the collective.
No hydraulics; big trim wheels that tensioned feel springs to offload the forces. 26 (?) pints of water-meth in a tank under the cockpit floor that could be pumped back to the pylon to control CofG and it would cruise, hands off, at 110 knots.
They have it easy nowadays.