Consider a two sngine plane in a one-out-of-two logic configuration. When both engines A and B are fully energized they share the total load and the failure time densities are f(t) and. f(t). If either one fails, the survivor must carry the full load and its failure density becomes g (1) 9r.8, (t). 1. Derive an expression for the reliability of the system, R(1). 2. Find the reliability if S(t) = f(t)=2eM 8(t)=88(t)=kek k>1