Sycamore Collective
baston's right about the Sycamore collective (only one) but it also ran across the cockpit not fore & aft. One needed articulated joints to twist and pull at the same time. In training, there was always a fight between instructor and stude and the poor instructor was flying left handed - so to speak.
The Sycamore also had a habit of running out of cyclic control authority and then over she went. The blades went the other way round as well.
O-D