Hmmm...this thread has dredged up a few semi forgotten things
The canberra and its large unpowered rudder had a wind limit for taxying (20knots ?) because it had a hand operated brake lever and used the rudder pedal movement for differential braking (no luxury like nosewheel steering !!) through the Brake Control Valve.
Before engine start the rudder lock was turned upside down - because on that side of the lock was a cut out to allow the rudder tab to move and hence allow rudder pedal movement but with the rudder locked neutral.
Then the 'volunteer' rudder lock party would follow the a/c to the (at Cottesmore) ORP where the a/c would park with engines running.
The 2 party members would then take a set of 'A' frame steps under an engine (aft of u/c leg) and - staying very close to the fuselage would take the steps to the tail and one of em would climb the steps to remove the rudder lock !
Then the rudder lock was carried forward and (after checking that the DV [direct vision] window was open) we would open the crew door and stow the lock in the cockpit,usually with a wave or grin from the pilot !
Just imagine the risk assessment on that nowadays LOL
Although I do not remember doing it that often...definitely not my fave job...Hot and smelly as invariably the a/c was parked crosswind
