When satnav falls over

[zoidberg]

Jammed? Spoofed? Broked? It's not a new problem.

Not 'if' but 'when'.....

It seems our gum'mint dunno the answer. Do you have any ideas?

Can you really manage the discipline of 'tradnav', or would you be confined to the Solent ( daylight only )....?

 

[ProDave]

You use your paper charts?

It also staggers me how many people set off on a long car journey without a road map in the car. If the satnav failed they would not have a clue how to get to their destination.

 

[Sandy]

When satnav falls over

Don't you mean when the navigation checker falls over. I'm I the only one who still uses traditional navigation then checks the GPS fix?

 

[dansaskip]

Paper charts, plus a sextant and the tables if off shore for long passages. Traditional skills that won't let you down.

 

[zoidberg]

A wise but hairy old Shackleton navigator once told me....

"Navigation doesn't happen on the chart table. It happens between the ears...."

 

[Ink]

Are we talking navigation or pilotage? Two different beasts.

I would say 98% of forumites rarely go out of sight of land.

Ink

 

[zoidberg]

Perhaps...... '98% of forumites rarely go in sight of water....'

 

[JumbleDuck]

It also staggers me how many people set off on a long car journey without a road map in the car. If the satnav failed they would not have a clue how to get to their destination.

Bet you a road atlas couldn't get you to my house.

 

[Slowboat35]

Well, a road atlas is hardly a credible chart for navigation, is it? It's merely a schematic.
An OS map will find your house just fine.

 

[DJE]

Jammed? Spoofed? Broked? It's not a new problem.

Not 'if' but 'when'.....

It seems our gum'mint dunno the answer. Do you have any ideas?

Can you really manage the discipline of 'tradnav', or would you be confined to the Solent ( daylight only )....?

ELORAN
Maritime Journal | UK government supporting e-Loran

 

[LittleSister]

Well, a road atlas is hardly a credible chart for navigation, is it? It's merely a schematic.

I agree with your first sentence, but the second puzzles me. A navigation chart is also 'merely' a schematic (as indeed is an OS map).

An OS map will find your house just fine.

It won't: that needs someone who can read a map. You may be surprised how many can't, or struggle to do so.

 

[JumbleDuck]

An OS map will find your house just fine.

A 50,000 map will find the village, but the house name doesn't even appear on the 25" map. A standard road atlas doesn't even show the village.

 

[Barnacle Bill]

Boringly going back to the original story, it looks a bit thin, frankly, and conflates navigation with communication. I would be staggered if the British Navy relied on GPS for navigation. I don't know what they use (probably classified) but Inertial Navigation, for example, has been around for decades. GPS is a very weak radio signal so extremely easily smothered with jamming noise.

The story looks like it was written for the reader who thinks GPS is the only way to navigate ...

 

[requiem]

Can you really manage the discipline of 'tradnav', or would you be confined to the Solent ( daylight only )....?

I'd probably just carry on as before. Well, I might toggle off the AIS layer if it made the screen increasingly at odds with reality.

 

[ctva]

A 50,000 map will find the village, but the house name doesn't even appear on the 25" map. A standard road atlas doesn't even show the village.

Give us an 8 fig grid ref and I’ll drop in for a dram.

 

[laika]

Don’t the RN teach their young gentlemen lunars any more?

 

[JumbleDuck]

Give us an 8 fig grid ref and I’ll drop in for a dram.

Bluff, iron, recruiter.

 

[RobbieW]

Bluff, iron, recruiter.

That seems to be a mooring or anchorage

 

[ctva]

Bluff, iron, recruiter.

Is that some sort of modern internettery thingimy jiggerry pokerry?

A grid ref, my old man if you please.

 

[dutyhog]

Our GPS packed in a month ago. We’ve not been anywhere unfamiliar. It’s nice not to bother with knowing precise position and speed ( the log failed years ago) - just like our first few decades. I do have Memory-Map, UKHO & Antares charts on the phone, but haven’t bothered with them yet. Maybe it will seem different in fog. I’ll get round to tracing the fault soon - it’s only three years old, so I hope it’s just a connection deteriorated during lockdown.