@prefix cpm: . @prefix dc: . @prefix dcat: . @prefix dce: . @prefix dct: . @prefix grg: . @prefix iop: . @prefix ns0: . @prefix ns1: . @prefix owl: . @prefix pav: . @prefix prov: . @prefix puv: . @prefix qudt: . @prefix rdf: . @prefix rdfs: . @prefix reg: . @prefix semapv: . @prefix skos: . @prefix sssom: . @prefix void: . skos:member . skos:related . skos:narrower . skos:related . skos:narrower . skos:narrower . skos:altLabel "Furuno DS 50 speed log" , "Furuno DS 50 speed log"@en ; skos:broader , ; skos:definition "The Furuno DS-50 is a 3-beam Doppler speed log providing display of speed over a wide range from -10.0 to 40kt. Speeds are detected relative to ground or water both fore/aft and athwartship. This model operates at 440kHz, and has speed accuracy of 0.1kt. The DS 50T is supplied with an additional transceiver unit."@en ; skos:inScheme ; skos:notation "SDN:L22::TOOL0793" ; skos:note "accepted"@en ; skos:prefLabel "Furuno DS 50 and DS 50T Doppler speed log"@en ; skos:related . skos:narrower .