An aircraft is equipped with a spinnion coupling an inboard wing to a tilting nacelle. Also provided are array and optical string controls for controlling the array and optical string such that the output of selected images on the array may be processed via pattern recognition. After the first, second and third scanning lines have been scanned, a plurality of scanning lines are scanned between the first and third scanning lines and between the second and third scanning lines. An arm is pivoted to the lever and a cam is pivoted to the arm and to the locking element so as to be movable between a first condition permitting the locking element to reciprocate along the guide and a second condition bearing against the guide and canting the locking element into frictional engagement against the guide. When either of the hardware switch or the software switch is operated, information is provided for identifying the other switch that corresponds to the auxiliary function commanded by the operated switch. More specifically, during the grain cook and steep process, the phase-separated supernate is retained for a subsequent batch of grain.