Mechanical Construction Details at www.japanese-home-gardens.com

The magnetic compass is the oldest and most basic navigation tool used on boats. Its history goes back centuries and improvements over the ages have been in mechanical construction details rather than in basic principles.

After the Korean War ended, there was a tapering off of American shipbuilding activities. In the early 1960's, building Before a shipbuilding contract is signed, the prospective owner and builder will have arrived at an agreement regarding the general dimensions, characteristics, and appearance of the vessel. This agreement is embodied in a set of documents known as the contract plans and specifications. Not to be confused with the numerous working drawings which must be produced during the course of construction, the contract plans (usually ten to twenty in number) show the general arrangement, scantlings (sizes of structural members) and principal dimensions of the vessel, while the specifications describe quite thoroughly the details of hull construction, machinery installation and outfit which are not amenable to delineations on the contract plans.

All boats—including auxiliary sailboats—that use gasoline as a fuel for propulsion, generating electricity, or mechanical power must have proper ventilation for every engine and fuel component, unless the Boat is of "open construction." To qualify as a Boat of open construction, a vessel must meet all of the following requirements: