Sailing Uma · video

What this video covers

Dan and Kika visit the National Maritime Museum in London to locate the Prime Meridian, the zero-degree longitude line.0:47 The museum houses over 2 million maritime artifacts, including historical sextants, gimballed marine chronometers, and various ship models.1:35 The collection features the 1933 world-record-holding single-engine boat designed by Scott Payne, which reached 100 mph.2:45 The hosts examine the role of gimballed clocks in historical navigation, explaining how sailors used Greenwich Mean Time to calculate longitude by comparing local high noon to the reference time at the Prime Meridian.6:38 They contrast this with the use of sextants for determining latitude via the sun's angle.7:23 After exploring the museum exhibits, the pair walks to the physical marker of the Prime Meridian in Greenwich.7:47 The visit concludes their time in England before they depart for their next destination.9:15

More from Sailing Uma

We Ditched Our Steering Wheel (And Built Something Better) | Step 496Sept 2026We're Finally Setting Sail Again!Sept 20264 Hours to Rig Solar for an 8-Month Solo CircumnavigationSept 2026Solar Sponsor Backed Out Before Sailing Around the World !Sept 2026

From Sailing Uma — see the channel’s boat, crew, and every analysed video.

The Sailing Directory Newsletter

One email with the fleet's best finds — the moments, boats, and stories worth your watch time. Enter your own address to get your own copy.