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On a typical aerofoil, a point exists about which the resultant aerodynamic pitching moment M is independent of incidence. This special point is called the Aerodynamic Centre (AC). The numerical value of the pitching moment about AC is denoted MAC. For standard aerofoils in subsonic flows, the Aerodynamic Centre lies approximate ¼ of the chord behind the leading edge (i.e. h=xAC/c ≈ ¼). For supersonic flows, the AC moves abruptly aft to around h ≈ ½; see Fig. 2.2-1. Since MAC is approximately constant over a wide range of CL including zero, MAC is sometimes referred to as the zero-lift pitching moment and denoted M0.
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Design, Construction and Type Certificate The following chapter covers the initial design, construction, registration and test flying of the first prototype of a new aircraft.
Q. Define the concept of strain hardening. Ans. Strain hardening or work hardening in metal occurs because of interaction between the this location and some of obstruction.
variation of energy bands with alloy composition
I need help in doing a project in excel that has everything about drilling like mud pump etc ..
i am doing be in mechanical engg in india. so can i do my masters in geoophysic ?
Present Worth equivalence: Since we have developed the relationship to find a future value F given a present value P, we can easily derive the formula to find a (P|F, i, n), w
the true length of a line is known to be 500m.the line was again measured with a 20m tape and found to be 502m,what is the correct length of the 20m tape.
Consider 1:1 stoichiometric polymerisation of 1,4-diaminobutane with sebacoyl chloride. (a) Write down a balanced chemical equation for the polymerization (b) Name the polymer fo
list of components
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