Lab 1 – Design Parameters and Tradeoffs 9 Feb 06
Unified Engineering
Learning Objectives
• Get familiar with flight performance modeling and prediction
• Get familiar with design parameters and tradeoffs
Preparation
• Study the lab notes document “Flight Power Relations”
Lab Execution and Deliverables
1) Working in a group of 3–5, extend the “Pro & Con” list at the end of the lab notes
document for the following design parameter changes:
• Increase the wing aspect ratio AR
• Increase the maximum operating lift coefficient C
L with higher-camber airfoil
• Reduce c
d by using thinner airfoil
• Reduce fuselage’s CDA
0 by adding fairing material
V
Explain the rationale for each Pro and Con with a brief argument. A few sentences and
possibly some simple algebra should suffice for each. Consider the effects on both t
max and
max.
2a) Rank the design parameters in order of decreasing perceived importance for t
max
2b) Rank the design parameters in order of decreasing perceived importance for V
max
Include the parameters given at the end of the lab notes document in this list.
Two written pages should be sufficient to report your findings.
Suggested teamwork process:
i) Individuals make preliminary lists of pros and cons during preparation
ii) Team meets and collates all these, agreeing on a rank ordering
iii) Team splits work if possible to document their final result
1
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