Underbody Design - 2. Partial-Skeg Rudders can be semi-balanced which is like having power steering. This type of rudder generally has three bearings, making it sturdier than a free-standing rudder which often has only two bearings. Examples include Morris 44, 46 and the Frers designed Hallberg-Rassys providing some protection from logs and debris and a third rudder bearing and more strength than a spade rudder. (Shown: Hallberg-Rassy 43).
Underbody Design - 1. Skeg Protected Rudder, detached from the keel is well suited for long distance cruising. The skeg protects the rudder to some degree, and may increase directional stability. Examples of this type of design: Valiants, Pacific Seacraft 34, 37, 40, 44. There are many suitable, well-built boats of this design type and they are a popular choice for long distance ocean cruising. - (Shown: Valiant 42).
3. (cont'd.) Modern Cutaway Full Keel, with attached rudder and moderate displacement - Having the rudder mounted slightly above and protected by the full length of the keel and the propeller enclosed in an aperture offer the best protection against damage from collision with submerged or floating objects. Careening or hauling out in primitive boatyards is easy with this type of design.
Underbody Design 4. Fin Keel/Spade Rudder is the fastest and most maneuverable design for racing and is the easiest and least expensive underbody to build. Some designs featuring a deep, high aspect keel may exhibit a lack of steering directional stability when ocean swells are present. The unprotected spade rudder is vulnerable to being damaged by groundings or hard impact with objects. (Shown: Sabre 38).
QuickStart Circumnavigation Guide: Proven Route and Sailing Itinerary Timed for Weather. Get ready to get off the dock and onto YOUR WORLD CRUISE! Select your route and choose a season for the greatest safety and comfort. You will be following the adventures of Captain Charlie and his wife, Cathy, as they sail their way around the world.
Phil Bolger 1927-2009 Phil Bolger was not the most famous of marine naval architects, but in many ways he was the most practical. He was known for off-beat designs, mostly sail, but of his 668 design, many were power boats, too. He was a master of simple design using 1/2” plywood and sold plans to a generation of Americans in the 1950s who built boats in their basements and back yards and made the dream of boating possible for thousands o...
Types of yacht - Aluminum - Aluminium is one of the finest materials for yacht consruction: it is strong, stiff, and light - but it is an expensive material to build a yacht hull from, so apart from quite a number of "superyachts", aluminium boats are rare. Aluminium yachts do have some specialised maintenance requirements to avoid corrosion, but overall it is a superb material. - Ovni
Underbody Design 5. Heavy Displacement Full-Keeled Double-Enders based on Tahiti ketch or Norwegian lifeboat lines used to be a nearly automatic choice for long distance voyaging. However, yacht design has made some great advances in the past 40 years, and you may choose to take advantage of these improvements which make for faster, more comfortable passages, and smaller, more easily handled sail plans without resorting to bowsprits and boomkins. (Shown: Westsail 32).