Abstract: A method, apparatus, system, and computer program product for managing flight leg data for flight legs flown by a plurality of aircraft. A computer system receives the flight leg data for the flight legs flown by the plurality of aircraft in real-time. The computer system associates aircraft operation data and airport data with the flight leg data such that the aircraft operation data and airport data associated with the flight leg data forms flight activity data for the flight legs. The computer system displays a selected view of the flight activity data in real-time in a graphical user interface on a display system in response to a query for the flight activity data using the selected view.

Abstract: A mechanical seal assembly includes a leak detector mounted thereon for detecting low rates of liquid leakage across the seal rings of the mechanical seal. The leakage detector collects the liquid leakage and includes a fiber optic sensor for detecting the leakage once the flow rate of the leakage becomes excessive.

Abstract: A mechanical seal assembly includes a leak detector mounted thereon for detecting low rates of liquid leakage across the seal rings of the mechanical seal. The leakage detector collects the liquid leakage and includes a fiber optic sensor for detecting the leakage once the flow rate of the leakage becomes excessive.

Abstract: An electronic closed loop piston pump servo control system including a swash plate within the pump housing which controls pump output as a function of its position about a rotational axis, means for altering the position of said swash plate, means for producing electric signals representative of the desired and actual swash plate angular positions, and means for comparing these signals and producing a control or error signal to the means for altering the swash plate position as a function of these signal differences. The means for producing electric signals representative of the actual swash plate position includes a rotary potentiometer mounted in the pump housing and directly connected to the swash plate along a common axis of rotation. This potentiometer produces a d.c. signal indicating the angular position of the swash plate on this common axis.