Historical and technical information about yachts.
Hylas yachts with their sugar scoop sterns can be difficult for davits. The davit arrangement needs to reach past the swim platform and high enough vertically for dinghy stowage and security. The davits can become an obstacle in using the swim platform. The 49 is … Continue readingHylas Davits: Simpson-Lawrence, Wells Marine, Atkins and Hoyle, Kato
The steering system on a sailboat is composed of sub-systems including pieces such as the cable, rudderpost, and rudder itself. The propulsion system includes parts such as the propellor and stuffing box.
The core of marine diesel engines are the combustion chambers. In each chamber, a piston goes goes up and down based on the combustion of diesel fuel. A connecting rod transfers the motion of the piston to the crankshaft. The crankshaft converts the up and … Continue readingMarine Diesel Engines – Parts, Fuel, Lubrication, Cooling Systems
Marine engines are mostly Yanmars in newer boats. But in the brokerage market, plenty of yachts have Perkins, Westerbekes, Universals, or Volvos.
Masts are either keel or deck stepped.
Hulls need stiffeners to withstand shearing, torsion, tensile, etc. forces. Stiffers break up the long spans of fiberglass into more resilant pieces. Types include bulkheads, floors, frames, stringers, and beams.
Fiberglass is made of fibers composed into fabrics then layered with resins. Between layers of fiberglass, sometimes builders use a core material.
Boats have fuel, water, and holding tanks. The general materials are fiberglass, plastic, and metal.
To attach wire rigging to the chainplates, you use fittings whether swage or swageless. Examples of swageless fittings include Stay Lock (Sta-Lok) and Norseman.
The hull to deck joint is where the fiberglass pieces from hull and deck molds combine. The joint is a vulnerable area for leaks on older boats. Generally, three types of joints are inward flange, outward flange, and shoebox. Ways of securing the joint include … Continue readingHull Deck Joint – Inward Outward Flange, Chemically Bonded, Fiberglass Tabbing, Bolted