GPS date rollover affects older GPS units

22 Feb

On April 6th, 2019 older GPS units may experience a range of problems because of a limitation in how they handle dates.  Thos problems could include not being able to receive location data.  It turns out the way dates are stored in older GPS units has a rollover event every roughly 20 years and we are about to experience the second one since the GPS constellations came online.  The rollover last happened in 1999 but in the last 20 years, the use and dependence on GPS has increased dramatically.

The Department of Homeland Security has published a bulletin on the ...

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ISBJORN Trans-Atlantic p. 5 // Birthday’s at Sea

22 Feb

Captain Andy turned 35 on the trans-At!

Captain Andy turned 35 on the trans-At!

In the days before accurate longitude at sea, trans-Atlantic skippers followed the by now cliched “sail south until the butter melts, then turn right.” Once the New World was discovered, and in turn mapped, sailors knew where the different islands in the West Indies lay, north-south anyway. They’d have known the Virgin Islands were about 18º30’ N, for example. Or that Nelson’s base on the south coast of Antigua was at exactly 17º N. They’d have known too, with a good trade wind blowing, roughly how many days after the butter melted it ...

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August Sandberg // Norwegian Sailor and Filmmaker

21 Feb

OTW256.jpg

#256: August Sandberg is a young Norwegian sailor and filmmaker. After being inspired at a young age by the Norwegian sailing greats, he bought a boat with his friend and sailed it across the Atlantic and down to Panama. He now works as a teacher, professional filmmaker and sailor. Andy caught up with him at his home on the west coast of Norway...

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Fast Winds, Big Sea

20 Feb

February 187, 2019/Day 136

Noon Position: 47 16S  173 45W

Course(t)/Speed(kts): E 7+

Miles since departure: 18,734

Avg. Miles/Day: 138

 

Brisk winds with squalls continue. Nights have been kind; wind and seas have been steady, allowing good sleep. But the days are a wild card of open sky followed by squalls, then open sky again. The open sky episodes blow hard. The squalls blow hard, but wind is quite variable. Thus, I’ve had to reef the twin headsails way in for the sake of energy conservation. It’s either that or sit on deck with a winch handle in my ...

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Innovative electronics like Navico ID hardly mentioned, a new paradigm?

19 Feb

What is arguably the most innovative electronics system in recent times debuted at the Miami boat show and very few people noticed! I’m talking specifically about the Navico Information Display that was purportedly integrated into the dashboards of some 14 new boats around the show, but there may well have been similar new integrations going on that even an obsessive marine electronics journalist is not aware of.

While the phrase “new paradigm” seems overused and often misunderstood, I think we’re looking at the real deal as the familiar model of how boat electronics are developed and marketed submerges behind ...

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Do Over

19 Feb

February 16 (again), 2019/Day 135 (again)

Noon Position: 47 07S  177 42 *WEST*

Course(t)/Speed(kts): E 7

Miles since departure: 18,572

Avg. Miles/Day: 138

 

Last night before midnight, Mo crossed the 180th meridian and passed from east longitude back into west longitude. More interestingly, from a balance sheet perspective, we crossed the International Date Line, which makes today February 16, again.

What is the International Date Line? It’s the day I get to take my miles back!

I keep Mo on zone time at sea, the same kind of time we live by on land. There are 24 one-hour zones ...

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Failures and Fixes

18 Feb

February 16, 2019/Day 135

Noon Position: 47 15S  178 34E

Course(t)/Speed(kts): E 6+

Miles since departure: 18,420

Avg. Miles/Day: 136

 

A slow night has given way to a fast day. Rain in the morning. Then squalls till mid afternoon. Then puffy cumulus as the wind hardened into the middle 30s from the WSW. This surprised me, that the low would come with cumulus and not the solid deck and rain one expects. But as I type, the sky astern has grown dark and heavy. Now comes the low.

We are entering that part of the voyage where gear ...

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RORC 2019 Caribbean 600 Race Part One

17 Feb

Here I sit typing words into the internet while 37,000ft over the Caribbean sea, winging my way towards Antigua. What an amazing age we live in! Internet connectivity while going this fast over such a lonely stretch of the planet still blows my mind. 

I’m on my way to Antigua to help out on Isbjorn, a Swan 48 that is being campaigned by my good friend Andy Schell. I’m to be a cook on the race, keeping one half of our 12 person crew fed and happy. The race we will be sailing in is the RORC 600. It’s a 600 mile ...

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A Gam at Sea, Thwarted

17 Feb

February 15, 2019/Day 134

Noon Position: 47 20S  175 26E

Course(t)/Speed(kts): ExN 5

Miles since departure: 18,293

Avg. Miles/Day: 137

 

So slow. We haven’t had a 150-mile day in nearly two weeks. Fastest day in the last eleven, 137 miles, and that one is way ahead of the average. On four days, we’ve made less tha 100 miles. That’s more sub 100-mile days in two weeks than we’ve had since departure. The forecast predicts wind should pick up–a low is approaching, but each new forecast pushes its arrival out another day.

I’m trying to relax into it. Tough. Cape ...

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Valentine’s Day

16 Feb

February 14, 2019/Day 133

Noon Position: 48 05S  172 54E

Course(t)/Speed(kts): E 5

Miles since departure: 18,181

Avg. Miles/Day: 137

 

No one who knows my wife, Joanna, would call her sentimental. Nor, being British, does she approve the California habit of hugging when clearly a handshake will do. She’s effusive and bubbly and extremely personable; she knows no such thing as having too many friends. But sentimentality is not her gig.

That said, on the occasion of both Figure 8 departures, Joanna has gifted me with deeply touching letters and a small collection of photos. Frankly, it has almost ...

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