TRANSPORT|maritime and inland waterway transport
- treoghléas tarchuir Reference Faomhadh an téarma seo mar chuid de Thionscadal Lex
- ga
- transmitting heading device | THD
- en
- Definition electronic device that provides information about a ship's true heading Reference "ISO 22090-1:2002 Ships and marine technology -- Transmitting heading devices (THDs) -- Part 1: Gyro-compasses http://www.iso.org/iso/catalogue_detail.htm?csnumber=34864 [6.8.2014]"