Hughes Space and Communications has inaugurated the use of a liquid apogee engine (LAE), built by Kaiser Marquardt, aboard PanAmSat's GalaxyXR satellite. An apogee engine is used to raise the elliptical geostationary transfer orbit to a circular geostationary orbit. The new LAE provides a heavy-lifting capability for larger satellites with its 100,000lb thrust (445kN).

Source: Flight International