Uploaded August 2026 | Updated September 2026, 2 weeks ago
Where a permanent lighthouse cannot be built a lightship can be anchored in position instead. It uses the same navigational ideas including height daytime colours and Fresnel lenses.
Modern electronic navigation has reduced the need for lightships but some still mark dangerous waters including the Varne and Sandettie light vessels in the Dover Strait.
#Lightships #MaritimeNavigation #MarineHistory #CoastalSafety #CasualNavigation
Where a permanent lighthouse cannot be built a lightship can be anchored in position instead. It uses the same navigational ideas including height daytime colours and Fresnel lenses.
Modern electronic navigation has reduced the need for lightships but some still mark dangerous waters including the Varne and Sandettie light vessels in the Dover Strait.
#Lightships #MaritimeNavigation #MarineHistory #CoastalSafety #CasualNavigation
![How Ships Call for Help at Sea 🚨 [SARTs Explained]](https://i.ytimg.com/vi/oIW3bz6EMCA/mqdefault.jpg "How Ships Call for Help at Sea 🚨 [SARTs Explained]
How Ships Call for Help at Sea 🚨 [SARTs Explained]")
