Refinement and analysis of concept
Refinement and analysis of concept
Refinement and analysis of concept
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航空宇航学院<br />
Direct Operating Costs (DOC)<br />
• DOC is a better criterion for optimization<br />
than first cost.<br />
• DOC is difficult to be calculated.<br />
• There is a close relationship between<br />
direct operating costs <strong>and</strong> aircraft mass.<br />
Aircraft Conceptual Design