The 2014-T6 aluminum angle has a cross-sectional area of \(A=2.67\) in \(^{2}\) and a radius of gyration about the \(x\) axis of \(r_{x}=1.25\) in. and about the \(y\) axis of \(r_{y}=1.06\) in. The smallest radius of gyration occurs about the \(a-a\) axis and is \(r_{a}=0.727\) in. If the angle is to be used as a pin-connected 6-ft-long column, determine the largest axial load that can be applied through its centroid \(C\) without causing it to buckle.

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y X- a C y x