A microprocessor-based control system for a gas turbine electrical powerplant the microprocessor-based control system controls the startup, operation, and shutdown of the gas turbine electric powerplant. A hammer is pivoted to the toy gun and releasably secured in place by a spring-supported sear for firing one single airsoft bullet per each hammering action. The business integration language development environment includes a BPEL development environment cooperatively coupled to a BPEL engine. The bypass damper is pivotally mounted within each slot and includes a torsion spring to move the damper into the obstruction position. A bypass in the filter housing may be opened to allow air from the device to bypass the filter material in the housing and pass directly into the vacuum bag. The driving mechanism includes an elastic member whose peripheral portions are fixed to the cylinder block so as to allow the elastic member to oscillate up and down, and whose center portion is attached to the piston, and one or more piezoelectric actuators that are arranged on the elastic member.