Answer: The most increased level of protection
One notable example of a general FPCON Delta was directly following the September 11 2001 attacks when all military installations were placed at FPCON Delta and restricted to only military personnel. Force Protection Level I Antiterrorism Training defines FPCON Delta as: FPCON Delta …
Cabin pressurization is a process in which conditioned air is pumped into the cabin of an aircraft or spacecraft in order to create a safe and comfortable environment for passengers and crew flying at high altitudes. For aircraft this air is usually bled off from the gas turbine engines at the compressor stage and for spacecraft it is carried in high-pressure often cryogenic tanks.
Hooke’s law is a law of physics that states that the force (F) needed to extend or compress a spring by some distance (x) scales linearly with respect to that distance—that is F s = kx where k is a constant factor characteristic of the spring (i.e. its stiffness) and x is small compared to the total possible deformation of the spring. The law is named after 17th-century British physicist …
Shear stresses within a semi-monocoque structure may be calculated by idealizing the cross-section of the structure into a set of stringers (carrying only axial loads) and webs (carrying only shear flows).Dividing the shear flow by the thickness of a given portion of the semi-monocoque structure yields the shear stress. Thus the maximum shear stress will occur either in the web of maximum …
Porter’s Five Forces Framework is a method for analysing competition of a business. It draws from industrial organization (IO) economics to derive five forces that determine the competitive intensity and therefore the attractiveness (or lack thereof) of an industry in terms of its profitability. An “unattractive” industry is …