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<div class="headertitle"><div class="title">? Problem Statement: Rocket Design and Flight Simulation Application</div></div>
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<div class="contents">
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<div class="textblock"><p><a class="anchor" id="autotoc_md0"></a></p>
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<h1><a class="anchor" id="autotoc_md1"></a>
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Overview</h1>
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<p>There is a critical need for an intuitive, extensible, and technically rigorous software application that empowers hobbyists, students, certification candidates, and early-career engineers to design, simulate, and optimize low-power, mid-power, high-power, and amateur-class rockets. The tool must emphasize accessibility, modularity, and educational transparency, and be written in clean, modern C++ using an object-oriented architecture. It must support both immediate practical needs (rocket design, flight prediction) and deeper study of aerospace physics and software engineering principles.</p>
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<p>The platform must remain open-source, support .ork file compatibility, and operate reliably across Linux, Mac, and Windows environments.</p>
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<h1><a class="anchor" id="autotoc_md2"></a>
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Goals</h1>
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<ul>
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<li><b>Modern Design Tools</b>: Allow users to easily create and modify rocket models, specifying parameters like airframes, mass properties, center of gravity (CG), center of pressure (CP), propulsion systems, and aerodynamic surfaces.</li>
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<li><b>Physics-Based Flight Simulation</b>: Simulate rocket flight through launch, coast, apogee, descent, and recovery, using accurate force models (thrust, drag, gravity, weather effects).</li>
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<li><b>Extensible Simulation Architecture</b>: Architect the system to initially support 3 Degree-of-Freedom (3-DoF) simulations, but natively prepare for future extension to 6-DoF (full 3D translation and rotation dynamics) without major rework.</li>
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<li><b>Educational Transparency</b>: Build the codebase to be highly readable, logically organized, and deeply documented, promoting learning about flight dynamics and systems modeling.</li>
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<li><b>Component Modularity</b>: Each rocket component (e.g., motors, fins, payloads, recovery systems) must exist as independent, interchangeable modules.</li>
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<li><b>Visualization</b>: Provide meaningful visual outputs, including:<ul>
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<li>2D/3D trajectory plots</li>
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<li>Stability margin graphs (e.g., CG-CP margin over time)</li>
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<li>Thrust, velocity, and altitude vs. time graphs</li>
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</ul>
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</li>
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<li><b>Certification-Ready Fidelity</b>: Achieve simulation fidelity that can support Tripoli Rocketry Association and NAR Level 3 certification requirements.</li>
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<li><b>Competitive Capability</b>: Aim to function as a drop-in replacement or superior alternative to tools like OpenRocket and RockSim Pro.</li>
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<li><b>Cross-Platform Support</b>: Deliver fully supported builds on Linux, Mac, and Windows.</li>
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</ul>
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<h1><a class="anchor" id="autotoc_md3"></a>
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User Personas</h1>
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<ul>
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<li><b>Hobbyist Rocketeer</b>: Designs and refines personal rockets, needing accuracy and usability without extensive technical setup.</li>
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<li><b>High School/University Student</b>: Builds rockets for courses, competitions, or research projects, using simulation to test and verify designs.</li>
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<li><b>STEM Educator</b>: Leverages the tool in classrooms to teach core concepts of dynamics, propulsion, aerodynamics, and systems engineering.</li>
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<li><b>Certification Candidate (NAR/Tripoli)</b>: Designs rockets intended for Level 1, 2, or 3 certification and needs trustworthy simulation results.</li>
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<li><b>Aerospace Engineering Student/Professional</b>: Uses the tool to prototype amateur designs, and values modular, clear, and modern C++ code.</li>
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</ul>
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<h1><a class="anchor" id="autotoc_md4"></a>
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Operating Constraints</h1>
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<ul>
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<li><b>Language</b>: Must be written in modern C++ (C++17 or newer) with strong attention to modularity, memory safety, and performance.</li>
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<li><b>Portability</b>: Must fully support Linux, Mac, and Windows platforms with minimal platform-specific code.</li>
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<li><b>Open Source</b>: Must be licensed under a permissive open-source license (e.g., MIT or BSD 3-clause) to encourage adoption, study, and contribution.</li>
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<li><b>File Format Compatibility</b>: Must support import/export of OpenRocket (.ork) files, ensuring interoperability with existing hobbyist ecosystems.</li>
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<li><b>Performance</b>: Must run smoothly on consumer-grade hardware and support both interactive design work and batch simulation runs for optimization.</li>
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<li><b>Incremental Upgrades</b>: Initial release will support 3-DoF dynamics (translational motion only) but architecture must cleanly allow extension to full 6-DoF dynamics (translational + rotational motion).</li>
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</ul>
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<h1><a class="anchor" id="autotoc_md5"></a>
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User Interface Requirements</h1>
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<ul>
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<li><b>Modular Design</b>: The UI should be modular, allowing for easy addition of new features and components without breaking existing functionality.</li>
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<li><b>Intuitive Interaction</b>: The interface should be intuitive and user-friendly, with clear labels, tooltips, and responsive design. </li>
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</ul>
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