Since 1982, the Alfred Gessow Rotorcraft Center at the University of Maryland has been one of the three Rotorcraft Centers of Excellence, supported for most of the years by the Army Research Office (1982-95) and later on by the Army/NASA National Rotorcraft Technology Center (1996-2006). The Center carries out multidisciplinary/ interdisciplinary research on various aeromechanics disciplines of rotorcraft systems.