such as width, breaks in the line, and zigzags havemeaning, as shown in figure 1-7.SHIPBOARD BLUEPRINTSBlueprints are usually called plans. Somecommon types used in the construction, operation,and maintenance of Navy ships are described in thefollowing paragraphs.PRELIMINARY PLANS are submitted with bidsor other plans before a contract is awarded.CONTRACT PLANS illustrate mandatory designfeatures of the ship.CONTRACT GUIDANCE PLANS illustratedesign features of the ship subject to development.STANDARD PLANS illustrate arrangement ordetails of equipment, systems, or parts where specificrequirements are mandatory.TYPE PLANS illustrate the general arrangementof equipment, systems, or parts that do not requirestrict compliance to details as long as the work getsthe required results.WORKING PLANS are those the contractor usesto construct the ship.CORRECTED PLANS are those that have beencorrected to illustrate the final ship and systemarrangement, fabrication, and installation.Figure 1-7.—Line characteristics and conventions for MIL-STD drawings.1-8
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