Ask the experts.

This article from Practical Boat Owner features two questions from readers seeking expert advice. The first question pertains to corrosion on a stainless steel rudder of a yacht. The expert suggests that the corrosion may be due to poor adhesion between the paint film and stainless steel, as well as galvanic corrosion caused by dissimilar metals used in welding. The expert recommends smoothing the rudder and applying a primer or Hammerite Special Metals Primer before applying Coppercoat or hard scrubbable antifouling. The second question addresses the cost of harbour dues in Langstone Harbour. The harbour master explains that vessel dues are required to fund the harbour and offset costs. The current charge for visiting Langstone Harbour is £9.10, with additional fees for mooring and annual fees for regular use. The harbour master emphasizes the importance of charging all harbour users to maintain the harbour's sustainability. [Extracted from the article]