Travellers tip #3 Rudder play:
“The next time you are in the dinghy park go around the other Flying Fifteens and see if you can move the bottom tip of their rudders. If you can there will be movement between the rudder bushes and the rudder stock. This is bad when sailing, as the rudder will vibrate and upset the flow of the water across the rudder causing drag and slowing you down.
The solution is to replace the nylon bushes which are found top and bottom of the rudder tube. I would recommend that you replace one at a time starting with the top bush and see if that solves the problem. To get the bushes out first try and tap them out with a long shafted screwdriver and if that doesn’t work you may have to use a junior hacksaw blade and wrap tape around one end to form a makeshift handle and cut saw drafts in the bush all around but be careful not to damage the rudder tube you will then be able to pull the bush out with a pair of long nose pliers.
You can then clean off the inside of the tube with fine sandpaper, apply a spot of epoxy glue and replace the old bush with a new one that you will be able to purchase from Pinnell and Bax. While you are attending to the rudder bushes you may also check that your rudder fits snugly to the hull. If there is a gap of over 6mm then you are again upsetting the flow of water across the rudder which slows you down. You can either push the rudder further up through the rudder tube or you may have to reshape the flange of the rudder. Either way make sure that the rudder then rotates freely without scrapping the hull”.
Helm, Bobby Salmond, ƒƒ202.