2020 Update on Paravanes and a Few Other Things

First, I’m still alive, though it was a close call. No, it wasn’t Covid-19, but something far worse, boredom.

I hate being bored and perversely, the less I do, the less I want to do. Thus, my creative energy that it takes to write these blogs or make YouTube videos seems to have gone into hibernation for the winter. Is it back now? Only time will tell, but since I’ve gotten a few emails asking if I was still alive, I thought I better get off my ass and write.

Second, also got an email complaining about the most recent appearance change on the blog I did a few months ago. They said it was harder to read because of the dark background. Honesty, I had noticed the same thing myself, but was hoping that I was the only one who noticed! See just lazy. Like hearing that strange noise in the middle of a passage and just hoping it goes away on its own (fat chance).

Tell me what you think of this new theme (background) and if anyone has any suggestions &/or improvements, I would be glad to hear them, though the easier they are for me to implement, the more likely it will happen.

Third, living on the Dauntless in the winter in Alaska is very different than crossing oceans or cruising to new and strange lands. More on this later, as it will be the topic in an upcoming blog.

Lastly, below is a blog I wrote mostly about the paravanes in 2016. I did write a summary of what I have done and the final paravane system setup. I will post that in the separate post.

My shopping cart with the new birds

While In Astoria, Oregon, last summer, I was finally able to get two new paravane birds.  Over 25,000 miles and 5 years, I had left the USA with 4 paravane birds, two 26″ and two slightly smaller at 24″ (as measured at the base of the triangle of the bird).  Going to 24″ was a mistake. I was so happy with the performance of the 26″ birds, I thought I would try the 24″ to see if they was as effective, but with reduced drag. Yes, just like a perpetual motion machine!

If I have learned anything over the last 6 years, it is that you can not escape the physical laws of the universe. Work (as in the physics definition of work as the product of Force and distance) perfectly explains the effectiveness of the paravane birds and the drag they produce.

Therefore, If I deploy just the windward bird (being the most effective), if it reduces the roll 80% of what both birds would do, then the drag will also be 80% of the total speed reduction had I deployed both birds. In the same way, the 24″ birds did not induce as much drag, but they also did not reduce the roll as much.

So, last summer, I decided to buy the 28″ birds, while in Astoria, at that glorious store, Englung Marine. With stores in the Pac NW, along the coast from Westport WA to Eureka, CA, it’s a must stop for any boater who wants the best bang for their buck.

I didn’t have a call to use them after the first day out of Astoria, but I did use them just the other day when we were returning to Wrangell from a a few days of cruising and fishing. The wind had picked up to mid to high teens from the south, producing a nasty very short period sea of 2 to 3 feet. With such a sea on the beam, this Kadey Krogen will get into quite a quick, deep roll of about 10 degrees to the lee and 5 or 6 to the windward.

Not terrible for what D and I have been through but a different story for the Vietnamese landlubbers. Also, the boat is set up for living aboard in port, not crossing the Atlantic, therefore, I deployed one bird immediately and was impressed how much the one 28″ bird suppressed the rolling.

 

An earlier post:

Less is Not Always Safer, More is Not Always Better

2019: This was written in June 2016, but never published. The recent Trawler Forum post about paravanes made me look for what I had written already and discovered I had never published this. So , here it is.

June 11, 2016 – The Pacific Rim or Less is Not Always Safer

While the Pacific Rim is my destination, I am actually referring to the movie, Pacific Rim Movie. Not the best of movies, I still find it hard to get my mind around why a giant robot would be effective against a giant monster.  Let’s not even address the premise that this giant robot has to be controlled by two people.

Two people, they must not have done 3 legged races in camp as kids.

But I am sitting here in Largs, Scotland listening to the soundtrack, which is dramatic.

It’s good Dauntless music.

But besides the soundtrack, I do love Idris Elba.  And if you have not watched Luther, make sure you watch it from season 1, episode 1.

But then he really made his  name in The Wire as Stringer Bell. A depressing, but extremely insightful series.

 

I’m waiting for my next crewmates to arrive, Dan & Robin.

Brian left yesterday and of course he took the good weather with him.  From his second day, we had nothing but fair winds, sunny skies and beautiful cruising.

That also allowed us to get Dauntless more organized and in ship shape having sat in the wind and rain for 8 months.  There are still a few projects to complete.  My new goal for the Wallas DT40 heater is to have it completely installed before I reach Alaska.  Stay tuned. (Ha, still not installed, but I’m not in Alaska yet!)

I also had the opportunity to redo my geometry to determine the deepest I can run the paravanes birds without the possibility of hitting the prop or rudder.

Just to show that the laws of math and science have not changed all that much in the two years, the magic number is 17 feet, which is the same number I came up with two years ago.

Now, if you have been reading my blog for any length of time, you will know of my tendency to rant and rave about politicians who make decisions not based on any facts or science, but simply because it looks, sounds, tastes good.

Well, I am guilty of doing the exact same thing in this case.  Which further makes my case that the right number is the right number, more or less does not make it any better, just different.

So in my case, I came up with 17 feet.  This was also confirmed because my friend Larry on Hobo, another KK42, runs his at 18 feet because his poles are about 2 feet longer than mine.

So two years ago (2014), having the magic number of 17, I decide to make it 15 just to be on the “safe” side.  Sounds like a no-brainer right?  Then as I am actually rigging them, I decide to take another couple feet off, to make my no-brainer even better.

What could go wrong?  Am I not being 50% safer?  That’s what a politician would try to tell you.

No, I was being an idiot. Made even stupider because I of all people have taught wave mechanics and what happens to the actual water molecules in a wave.

In last fall’s crossing of the North Sea, it all became clear.   While crossing the North Sea from Norway to Scotland in September 2015, on the first day, (of the 4 day trip), the winds were from the NW at 20 knots, gusting to 37, producing seas 12 to 18 feet.

Crossing the North Sea

But the paravanes were not as effective as they should have been. I realized I was running the birds too shallow.  The paravane bird was getting caught in the rotor of the wave.

Waves are created by energy passing through water, causing it to move in a circular motion, producing a rotor. While the wave progresses, the particles of water in the wave itself, move up and down.  If you watch a leaf floating on the water, even though the waves move, absent current, the leaf stays in place.ocean wave

Therefore, instead of pulling the boat down and thus reducing the rolling motion, all of a sudden the bird is actually being pushed up.  Sometimes this would cause the bird to fly out of the water.  Once I stopped and put another 5 feet on line on the bird, all was good and I got to Scotland.

So less is not always better.

And now, I will show you why more is not always better either.  Having Brian on our 2016 maiden voyage turned out to be, was a godsend.

I had a thinking partner who helped me articulate my thoughts and ideas.

The only moment where two people was a detriment and not a plus was in getting back to Dauntless on the dingy.  I got out, Brian got out, the dingy drifted away.

We started the engine, detached ourselves form the mooring and the dingy was reacquired 10 minutes later.

Had either of us been alone, we would have known the dingy was not secured.

Dauntless on a mooring in Scotland

 

Less is Not Always Safer, More is Not Always Better

This was written in June 2016, but never published. The recent Trawler Forum post about paravanes made me look for what I had written already and discovered I had never published this. So , here it is.

June 11, 2016 – The Pacific Rim or Less is Not Always Safer

While the Pacific Rim is my destination, I am actually referring to the movie, Pacific Rim Movie. Not the best of movies, I still find it hard to get my mind around why a giant robot would be effective against a giant monster.  Let’s not even address the premise that this giant robot has to be controlled by two people.

Two people, they must not have done 3 legged races in camp as kids.

But I am sitting here in Largs, Scotland listening to the soundtrack, which is dramatic.

It’s good Dauntless music.

But besides the soundtrack, I do love Idris Elba.  And if you have not watched Luther, make sure you watch it from season 1, episode 1.

But then he really made his  name in The Wire as Stringer Bell. A depressing, but extremely insightful series.

 

I’m waiting for my next crewmates to arrive, Dan & Robin.

Brian left yesterday and of course he took the good weather with him.  From his second day, we had nothing but fair winds, sunny skies and beautiful cruising.

That also allowed us to get Dauntless more organized and in ship shape having sat in the wind and rain for 8 months.  There are still a few projects to complete.  My new goal for the Wallas DT40 heater is to have it completely installed before I reach Alaska.  Stay tuned. (Ha, still not installed, but I’m not in Alaska yet!)

I also had the opportunity to redo my geometry to determine the deepest I can run the paravanes birds without the possibility of hitting the prop or rudder.

Just to show that the laws of math and science have not changed all that much in the two years, the magic number is 17 feet, which is the same number I came up with two years ago.

Now, if you have been reading my blog for any length of time, you will know of my tendency to rant and rave about politicians who make decisions not based on any facts or science, but simply because it looks, sounds, tastes good.

Well, I am guilty of doing the exact same thing in this case.  Which further makes my case that the right number is the right number, more or less does not make it any better, just different.

So in my case, I came up with 17 feet.  This was also confirmed because my friend Larry on Hobo, another KK42, runs his at 18 feet because his poles are about 2 feet longer than mine.

So two years ago (2014), having the magic number of 17, I decide to make it 15 just to be on the “safe” side.  Sounds like a no-brainer right?  Then as I am actually rigging them, I decide to take another couple feet off, to make my no-brainer even better.

What could go wrong?  Am I not being 50% safer?  That’s what a politician would try to tell you.

No, I was being an idiot. Made even stupider because I of all people have taught wave mechanics and what happens to the actual water molecules in a wave.

In last fall’s crossing of the North Sea, it all became clear.   While crossing the North Sea from Norway to Scotland in September 2015, on the first day, (of the 4 day trip), the winds were from the NW at 20 knots, gusting to 37, producing seas 12 to 18 feet.

Crossing the North Sea

But the paravanes were not as effective as they should have been. I realized I was running the birds too shallow.  The paravane bird was getting caught in the rotor of the wave.

Waves are created by energy passing through water, causing it to move in a circular motion, producing a rotor. While the wave progresses, the particles of water in the wave itself, move up and down.  If you watch a leaf floating on the water, even though the waves move, absent current, the leaf stays in place.ocean wave

Therefore, instead of pulling the boat down and thus reducing the rolling motion, all of a sudden the bird is actually being pushed up.  Sometimes this would cause the bird to fly out of the water.  Once I stopped and put another 5 feet on line on the bird, all was good and I got to Scotland.

So less is not always better.

And now, I will show you why more is not always better either.  Having Brian on our 2016 maiden voyage turned out to be, was a godsend.

I had a thinking partner who helped me articulate my thoughts and ideas.

The only moment where two people was a detriment and not a plus was in getting back to Dauntless on the dingy.  I got out, Brian got out, the dingy drifted away.

We started the engine, detached ourselves form the mooring and the dingy was reacquired 10 minutes later.

Had either of us been alone, we would have known the dingy was not secured.

Dauntless on a mooring in Scotland

 

What I’m Really Afraid Of?

Just when I thought I had the Plan, I read a story about drug driven crime spreading to the west coast of Mexico. Manzanillo, one of my planed stops, was prominently mentioned.

20180126 Win
dyty Depiction of Surface Winds

Where does that leave me? Besides the obvious, afraid!

Last summer I had a detailed plan to cruise up the coast of Mexico, stopping every night, hitting all the nice spots, with only a couple overnight passages. Let’s call that plan, the Coastal Cruise Plan. This is essentially what we had done 3 years ago in the Baltic.  I had even spent the last month alone, cruising from Stockholm all the way back to Ireland.

Last year, I had my nephew, Micah, with me from Ireland to Costa Rica.  It’s no coincidence that when he left Dauntless in March to go to law school, I lost a lot of my ambition to continue north alone. Cruising alone for me is not fun. It’s what I do when I need to get from A to B or as I did from Stockholm to Waterford.

20180126 NWS P_e_sfc_color

I am hoping that this coming summer, my girlfriend Trinh and her son, Thien, will have visas for Mexico. This is something that I must initiate this April when I return to Huatulco. If that is possible, they, with other friends who have expressed interest in joining Dauntless this summer, would make the Coastal Plan at least feasible. We would enjoy the numerous stops and towns along the coast, plus many eyes make for less stressful cruising.

A visa for the U.S. is another story and it takes forever. I’m hoping for 2019.

The Pacific coast of Mexico is not the Baltic and North Sea. The weather is not necessarily worse, but the predominant winds are from the northwest, the direction Dauntless must go. Adding to that problem, there are numerous fishing boats and nets and other boat traffic near the coast, whereas in the Baltic, there was none of that.

Lastly, safe harbors (protected from weather) on the Pacific coast of Mexico are few and far apart. North from Huatulco to Manzanillo, a distance of almost 600 miles, there are only two safe harbors. In a normal (for me) coastal cruise of 40 to 60 miles per day (6 to 9 hours), that’s 8 out of 10 nights anchored or in some port, at the mercy of the weather.

That’s a no-go.

For those of you who have read my precious comments about weather forecasts, you will know that even in the best circumstances, I don’t trust weather forecasts past three days and even at that I assume they are 50% off. That means, if the forecast is for winds from 270° at 12 knots, I plan for winds 240° to 300° at 8 to 16 knots (50% and 150% of forecast).

Therefore, to cruise an unprotected coast in any but the mildest of conditions is perilous.

I needed a plan B.  The Near Coastal Plan.

In this plan, we will take what the weather gives us. If we get four good days (favorable winds and seas) we’ll cruise until the weather becomes unfavorable. This potentially means we would take chunks of distance, 3 days, 24/7 is 450 nm. Making the entire trip into 4 chunks of 500 miles each, would get the job done and reduce time spent too close to the coast.

It would be far less fun however, but probably safer in many ways and less stressful.

Then came plan C, the Ocean Plan.

But first we talk to talk about hurricanes.

Hurricane season runs from June through October, with the highest frequency, mid-July to mid-September.

I can see an advantage in avoiding the high summer.  Looking at the Windyty depiction of the surface winds over the eastern Pacific today, you can see the big ass high pressure system that keeps the easterly trade winds over Hawaii (far left of picture) as well as the northwest winds over the west coast of California and Mexico.  Now, one of the disruptors of these winds are hurricanes.  The circulation pattern around hurricanes is far smaller than this massive high-pressure system, but a Pacific Ocean hurricane a few hundred west of Mexico, would cause southerly winds off the Mexican coast.

If it moved slowly north, maybe I could tag along??

It all depends on the situation and I’d have to figure out my escape routes, but it’s something for me to think about and plan for. It’s also significant that eastern Pacific hurricanes are weaker than Atlantic ones, with wind patterns not much stronger (if at all) than Northern Atlantic low-pressure systems in August and September (and I’ve certainly had my fun with those!).

Then the Ocean Route would entail an end around, running almost west, then curving slowly northwestward and finally northward, ending up east of Ensenada or southern California. With little winds, it would be an easy 10 to 12-day voyage, just like I did alone from the Azores to Ireland.  I’d only do this though if I saw the possibility of an extended time of light winds.

Also, time of year matters in my decision making. In the scenario just mentioned above, In May or June, I’d have plenty of time to wait or make it happen.  I may have different options later in the summer.

In September 2015, while waiting in Norway to cross the North Sea (I anticipated a 72-hour crossing), my weather windows were getting smaller and smaller. September is simply too late to be doing such a trip. But Sweden was so nice!

There had been strong northerly winds 25+ winds and driving rain, for days. I waited and waited. Finally, I saw a high-pressure ridge building into the North Sea from the English Channel, but this ridge of high pressure was also moving eastward.  But it only gave me a two-day window for a three-day trip.

Dauntless Crosses the North Sea 2015

I had to take it. It meant that I left my little port of Egersund, Norway, with 35+ knot winds from the NNW and rain. If you look at my route I took to Fraserburgh Bay, Scotland, those strong winds caused that dip in my route. Even with the paravane stabilizers, it’s just easier on the boat to put the winds and resultant seas on the starboard stern quarter. After 24 hours, as the winds died, I was able to head more westerly and on the third day, to the northwest. But that little longer route also added 12 hours to the trip and the next frontal system was right on, so my last 8 hours were in the weather again.

Would a longer, better weather window has come eventually? Sure. In the winter, under very cold air and high pressure. I couldn’t wait that long.

Dauntless in Ireland, next to a fishing boat with almost the exact same lines. There is a reason she handles the North Atlantic like she was born there.

When we decided to cruise the world or at least get away from the coast, we knew we wanted, needed a boat that that could all that and more. All the readings I did about boats and people cruising in boats all over the world, led me to Kadey Krogen.

Our little 42-foot boat was well built, extremely well designed for the worst of the worst and affordable.

Having Dauntless under my feet gives me confidence that she can handle any stupid situation I put her in.

Now, people are another matter.

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Keys: