When building a 40ft yacht, I investigated many ways to bush the main rudder shaft and decided to move from the norm brass bush to a vesconite bush. The Vesconite bush is a large single bush, L 240mm, OD 101.5mm, ID 77.3mm. Vesconite has been the best choice of material ever.
The bush drives the main rudder blade and is submerged in sea water moving the rubber back and forth as it controls 13 Tons of yacht through tough ocean conditions. I sailed with my young family on the Vaal Dam then moved the yacht to Simons Town where we completed in the Saint Helena Race, a 2000 nautical mile journey across the Atlantic.
I have since sold the yacht to its new owner who has now completed more than 20 000 nautical miles. She is now been prepared for a trip to Chile. The Vesconite bush on her rudder is still 100%.