Seismic activity shifts CI 10nm south!!

[Angele]

Just doing some passage planning with my Reeds Channel Almanac and shocked to discover that it is no longer the same distance from Needles to Alderney as it is to Cherbourg.

Looked back at a previous edition just to check that my recollection had nothing to do with over-winter cobwebs on the brain and no.

Previously:
Needles L Ho to Cherbourg - 63nm
Needles L Ho to Braye - 62

Now:
Needles L Ho to Cherbourg - 63nm
Needles L Ho to Braye - 71

Similar results for St Peter Port and St Helier. Even St Malo has receded by a couple of miles.

I'm surprised this kind of seismic activity didn't set off a massive tsunami. Better set off an hour earlier, hadn't I?

 

[geoid96]

Without a chart in front of me, I'm pretty sure the direct distance from The Needles to Cherbourg and to Braye is about the same. It looks like the distance to Alderney has been measured in statute miles not nautical miles.

 

[sailorman]

Without a chart in front of me, I'm pretty sure the direct distance from The Needles to Cherbourg and to Braye is about the same. It looks like the distance to Alderney has been measured in statute miles not nautical miles.

both give or take a tad 60 Nmls

 

[alahol2]

Presumably thay can lay Cherbourg but need to tack to get to Braye.

 

[Angele]

Presumably thay can lay Cherbourg but need to tack to get to Braye.

No, it's meant to be distance over ground. It'll almost never be the distance we sail, but that is the job of the navigator to compute, not for the almanac to guess.

 

[alahol2]