Woodward’s UG-8PL is a compensated, isochronous governor for use with diesel, gas, and dual-fuel engines or steam and industrial gas turbines driving pumps, compressors, alternators, generators, etc. The UG-8PL governor has an integral oil reservoir (sump) and oil pump and does not require an external oil supply for its operation. The governor also has both a spring-driven ballhead assembly and laminated-spring ballhead drive to help reduce undesirable torsion vibrations which may be transmitted to the governor.