A faceplate structure for a load control device comprises a bezel, an operating knob extending through an elongated rectangular opening of the bezel, and a sliding cover plate disposed behind the bezel. The controller of the wireless base station may randomly allocate the pilot sub-carriers over time. The sleeve is formed by bringing together two longitudinal edge portions of a sheet and fixing the two longitudinal edge portions together. The wheel hub is supported on the spindle and is rotatable about the rotational axis. The microcapsules are comprised of a core of polypeptide or other biologically active agent encapsulated in a matrix of poly copolymer having a molar composition of lactideglycolide from 9010 to 4060, which may contain a pharmaceutically-acceptable adjuvant, as a blend of uncapped free carboxyl end group and end-capped forms ranging to ratios from 1000 to 199. Hover tubes are provided to adjust the aircraft in pitch, yaw and roll.