Refinement and analysis of concept

航空宇航学院
Mass Prediction Techniques
• Empirical comparisons
– Predictions by direct comparison with other similar design
• Empirical formulae
– Derived by a statistical analysis of available information from
many aircraft (see chapter 6 )
• Theoretically derived formulae
– Based on a simplified design of the component
– See Addendum 4
• Detail estimation method
– Need information of the detailed component
Aircraft Conceptual Design