Rudder system redundancy on Rivendel II
Yes, John, I would indeed have some concerns about the rudder. But before elaborating, let me repeat again that I feel that the Legend 43, and vessels of similar ilk, can be made into nearly-perfect Tradewind cruisers but should think twice before undertaking offshore passages in the Variables and higher latitudes. Every year, about one in three of our cruising friends making the passage between New Zealand and New Caledonia, Vanuatu or Fiji runs into a strong gale or storm in the 50-60+ knot category.At the moment, however, we have no immediate plans to sail to New Zealand since Project MARC, our medical and educational assistance project for the remote island communities in Vanuatu (see website link below), not only keeps us here but brought us back from Queensland, Australia in June/July 2000. As the number and size of international cruising vessels helping Project MARC increases steadily each year, however, we may well find that "Rivendel II" is no longer an essential link in the project and either decide to sell her here in Vanuatu (i.e. at the end of the 2003 season) or sail her to New Zealand (in spite of my earlier avowed reservations) to use her as a coastal cruiser there.With regard to the rudder; here is the deal:(1) due to the use of our AutoHelm windvane with large (nearly 6 ft high!), transom-mounted accessory rudder, Rivendel's main rudder tends to see light use only. Most of the time it stays locked near-center while the accessory rudder steers. Nonetheless, we are keeping a close eye on condition of the aluminum pedestal base (corrosion!), cables and quadrant. Also, the rudder itself is carefully inspected each year and to make sure it has no water inside and there are no signs of ablation between the 1 3/4" stainless steel shaft and the FRG rudder body. Nonetheless, I think that the amount of play between the shaft and the shaft tube has slowly increased a little bit over the years (thereby increasing the potential amount of shosk-loading) and I have often thought about having a modern rudder shaft bearing assembly installed. Needless to say, of course, that would be a major operation.So, what is the plan if we would loose the rudder. Well, first of all, I want to reduce the chance that the same mishap (e.g. u/w collision with tree trunk) would take out both the main rudder and the transom-mounted accessory rudder. Therefore, I have made a stainless steel, spring-loaded clamp that is designed to break loose in case of a major frontal or sideways blow, thereby letting the rudder rotate upwards till it passes over the obstacle. It's basic design is similar to a transom mounting plate for a large outboard (and can in fact be used to mount an outboard after removing the accessory rudder). Unfortunately, since the springs need to be very strong and tightened down to avoid the clamp coming loose in heavy seas, there is no real way to test the system (e.g. with a sledge hammer) without potentially damaging the rudder or it's brackets. I just hope I will never find out whether it really works or not.....Hope this answers most of your questions.Flying Dutchman"Legend 43"