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Unformatted text preview: Lab 4 – Design Problem Formulation Unified Engineering 4 Mar 06 Learning Objectives • Measure and analyze prototype/baseline UE Competition airplane • Formulate a suitable design space for a new wing • Perform preliminary design and sizing studies. This will be a quantitative continuation of the exercise from Lab 1. Plane Vanilla Measurements for Redesign Baseline (reverse engineering) • Measure the prototype Plane Vanilla airplane in order to determine S , b , W , λ • Note the component weights given • Measure the thickness/chord ratio τ of the root airfoil • For wing weight and deﬂection estimates, the pink foam’s approximate properties are: 3 ρ ≃ 2 . 0 lbm / ft 3 = 0 . 525 g / in 3 = 32 kg / m , E ≃ 2800 psi = 19 . 3 MPa The cross-sectional area of a typical airfoil is very nearly 2 τ A = 0 . 60 c t = 0 . 60 c which allows estimation of the wing volume and hence the wing weight. The weight of the remainder of the airplane can be assumed to be fixed for now....
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This note was uploaded on 01/28/2012 for the course AERO 16.01 taught by Professor Markdrela during the Fall '05 term at MIT.
- Fall '05