Portable servoactuator test system

Claim 1

A portable testing system for use by an operator for onboard flight line testing of servoactuators on aircraft comprising: (A) a housing containing the portable system; (B) cable means for interconnecting said system to an aircraft to provide electrical signals simulating flight control for testing preselected servoactuators on said aircraft; (C) means for selecting one of a plurality of servoactuators on said aircraft including an interface means for use by the operator and for selecting a sequence of test to be applied to said selected actuator for testing said selected actuator without mechanically disconnecting said selected actuator from said aircraft; (D) means for generating a plurality of electrical command signals simulating flight control of said servoactuator which has been selected for testing; (E) means for selectively sequentially applying said plurality of electrical command signals to said preselected servoactuator for causing said actuator to react responsively thereto; (F) means for receiving from said actuator test results electrical signals generated responsive to reactions of said actuator to said command signals; (G) means for comparing said test results signals to predetermined tolerance values to ascertain operability of said selected servoactuator; (H) means for automatically applying the next sequential command signal when the compared test results are within said predetermined tolerances; (I) means for automatically stopping said sequential application of said command signals responsive to said test results being outside said tolerances; and (J) means for providing an indication to an operator that said selected actuator has failed to provide signals within said tolerances.