Naval Draughting and Design Course

Lesson 1 • Line Types and Drawing Conventions

Teaches standard line weights, types, and their meanings in naval drawings. Consistent line use is required for drawings to meet professional standards.

Lesson 2 • Lettering and Title Block Standards

Covers freehand and mechanical lettering techniques and title block requirements. Proper annotation ensures drawings are traceable and professionally formatted.

Lesson 3 • Reading and Interpreting Ship Drawings

Develops the ability to extract information from existing naval drawings. This skill underpins all design and drafting tasks that follow.

Lesson 4 • Naval Drafting Overview and Terminology

Introduces the scope of naval drafting and its role in ship design. Builds shared vocabulary essential for all subsequent technical work.

Lesson 1 • Orthographic Projection Principles

Teaches first- and third-angle projection methods for representing 3D objects in 2D. Orthographic views are the primary format for all naval engineering drawings.

Lesson 2 • Dimensioning and Tolerancing Basics

Introduces aligned, unidirectional, and baseline dimensioning along with basic tolerances. Correct dimensioning ensures fabricated parts match design intent.

Lesson 3 • Sectional Views and Conventions

Explains full, half, offset, and broken-out sections used to reveal interior features. Sectional views are critical for showing ship structural and machinery details.

Lesson 4 • Auxiliary and Detail Views

Covers primary and secondary auxiliary views for inclined surfaces and enlarged detail views. These views clarify complex geometry common in hull and superstructure design.

Lesson 1 • Lines Plan Components

Explains the body plan, sheer plan, and half-breadth plan that together define hull form. The lines plan is the master geometric document for ship construction.

Lesson 2 • Hull Form Coefficients

Covers block, prismatic, midship, and waterplane coefficients and their design significance. Coefficients quantify hull fullness and directly influence resistance and stability.

Lesson 3 • Principal Ship Dimensions

Defines length, beam, draught, depth, and freeboard and their measurement conventions. These dimensions are the starting reference for all hull form work.

Lesson 4 • Offsets Table and Fairing

Teaches how to create and use an offsets table to define hull surface coordinates. Fairing ensures a smooth, buildable hull surface free of unfair bumps.

Lesson 1 • Midship Section Drawing

Covers drafting the midship section showing frames, plating, and stiffeners to scale. The midship section is the primary structural reference drawing for the vessel.

Lesson 2 • Deck and Bulkhead Drawings

Teaches plan and elevation drawings of decks and watertight bulkheads with openings. These drawings define compartmentalisation critical to ship safety.

Lesson 3 • Structural Profiles and Sections

Covers drawing standard structural profiles such as angles, tees, and flat bars used in ship construction. Correct profile representation ensures accurate material takeoffs.

Lesson 4 • Ship Structural System Overview

Describes transverse, longitudinal, and combined framing systems and their structural roles. Understanding framing systems is prerequisite to drawing any structural detail.

Lesson 1 • Isometric Piping Drawings

Introduces isometric projection for piping spools showing 3D routing in a single view. Isometric drawings are used for fabrication and installation of prefabricated pipe assemblies.

Lesson 2 • Piping Arrangement Drawings

Covers plan and elevation piping arrangement drawings showing physical routing aboard ship. Arrangement drawings guide installation and support maintenance access planning.

Lesson 3 • Schematic and Flow Diagrams

Teaches construction of single-line schematic diagrams showing system logic and component connections. Schematics are the primary communication tool for system designers and operators.

Lesson 4 • Piping Symbols and Notation

Covers standard symbols for pipes, valves, fittings, and instrumentation used in marine diagrams. Consistent symbol use is compulsory for drawings to be interpreted correctly.

Lesson 1 • General Arrangement Drawing

Teaches construction of the general arrangement drawing showing all decks, compartments, and major equipment. The GA drawing is the primary reference document for the entire vessel.

Lesson 2 • Outfit and Accommodation Drawings

Covers drafting furniture, equipment, and fitting arrangements in accommodation and working spaces. Outfit drawings coordinate space allocation and support procurement.

Lesson 3 • Marine Electrical Drawing Types

Surveys single-line diagrams, wiring diagrams, cable schedules, and panel layouts used in ship electrical design. Familiarity with each type guides correct drawing selection for each task.

Lesson 4 • Cable Routing and Tray Plans

Teaches plan-view cable routing drawings showing tray paths, penetrations, and separation zones. Routing plans prevent conflicts between cable groups and structural members.

Lesson 1 • Drawing Output and File Management

Covers plotting, PDF export, drawing transmittal, and file naming for naval CAD projects. Proper output and file management ensure drawings are delivered and archived correctly.

Lesson 2 • 3D Modelling Basics for Hull Form

Introduces surface and solid modelling techniques applied to basic hull form geometry. 3D models support visualisation, interference checking, and downstream analysis.

Lesson 3 • 2D Drawing Production in CAD

Teaches precision 2D drafting commands for lines, arcs, offsets, and hatching in a CAD environment. These commands replicate and accelerate manual drafting tasks covered in earlier chapters.

Lesson 4 • Blocks, Symbols, and Libraries

Covers creating and inserting reusable symbol blocks for piping, structural, and electrical drawings. Symbol libraries reduce drafting time and enforce drawing consistency across projects.

Lesson 1 • Drawing Review and Final Submission

Covers internal checking, peer review, and formal submission procedures for the completed drawing package. Review processes mirror professional practice and prepare students for workplace quality systems.

Lesson 2 • Hull Form and Lines Plan Development

Applies hull geometry skills to develop and fair a lines plan for the project vessel. This deliverable forms the geometric foundation for all structural and systems drawings.

Lesson 3 • Structural Drawing Package

Produces the midship section, deck plans, and key structural details for the project vessel. Structural drawings must be dimensioned, annotated, and cross-referenced correctly.

Lesson 4 • Systems and Outfit Drawing Package

Produces piping schematics, electrical single-line diagrams, and the general arrangement drawing. These drawings complete the full drawing set required for vessel construction.