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Unformatted text preview: wing. As such it is often reported in “pounds per square foot”, at least in the US. It is also the average pressure difference between the lower and upper surfaces of the wing. a. Look up the wing loading of a Cessna 152 (light trainer, low Mach number) and of a 747 (heavy airliner, transonic Mach numbers). b. Convert the above wing loading to “atmospheres”. For the Cessna, you may take the altitude to be sea level. For the 747, use 30,000 feet. (7 on next page) 7. All quantities we will consider in this course have units consisting of combinations of Mass (M), Length (L) and Time (T). Express the units of each of the following in this form (ie as a combination of M, L and T.). Also state it in, specifically, MKS units: (Results given for velocity) Variable name MLT units MKS units Velocity L/T m/s Density Pressure Pressure/Density Density*Velocity^2 Shear stress Mach number...
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This document was uploaded on 09/09/2011.
- Spring '09