The new single pole switch was introduced in the early 50s to prevent tailplane runaway problems experienced on early marks fitted with one two-way directional tailplane switch. They were mounted on the top of the Right hand horn in a fore and aft position. The rearmost switch controlling the direction of tailplane travel, the front one controlling the introduced isolating contactor (fitted in the rear fuselage) to prevent tailplane runaway.

The PR9 yoke had a similar two switch arrangement on the right hand horn but the switches were side by side toggled and joined at the top for thumb use. The ‘Press to Talk’ switch was mounted on the inside face at the bottom of the Right hand horn.

An air brake control switch was mounted on the top centre of the horn on a separate mounting plate. The Left hand horn had differing switches mounted on the top according to Canberra type. The B(I) versions had triggers mounted on the Right hand horn.

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