Got my 16 cruiser, and following sea question

bmacpiper

New member
Hi again,
Found a 2005 SD16 cruiser that was too good of a deal to pass up--18.9 hours, covered the whole time, like new. Price would make you drop your beer.

So in the past four weeks, I've tripled the hours on the boat, just crabbing and fishing in Puget Sound, and have really been enjoying her. As I'm sure you all know, I get comments on the boat everywhere I go--so easy to use and looks great. In the rainy northwest, she is just perfect.

A couple of weeks ago, I was in about 3' wind waves (head on), and that was pretty uncomfortable, though passable. I started paying closer attention to the marine weather forecast, and pretty much avoid going out if it's beyond 1-2 feet.

Today was forecast to be 1 or 2 feet, subsiding, but after setting crab pots and trolling a bit, I saw a rain line coming from the north, as well as chop building. I quickly grabbed the pots and headed for harbor, but wasn't fast enough to avoid a steep 3' following sea. I broached once, but quickly got back on course. I was experimenting with different things, i.e. going slower than the waves on the big ones, faster than the waves on the small ones, etc. Other than the broach, I felt in control for the most part, but it was not a relaxing ride. As an aside, an hour later, all was calm and again in line with the forecast.

In any case, I know that Chapman basically says to let the waves pass you, but that felt a lot like impending broach as well. I ended up running mostly perpendicular to the waves, but down in a trough, i.e. matching my speed to the speed of the waves with one ahead and one behind. I was also constantly making corrections on the throttle and wheel, to keep headed perp to the waves.

Though I have hundreds (thousands?) of hours behind me on power boats, it left me humbled and feeling like it was time to do some practicing in smaller conditions. The broach really got my attention, as I was well aware of how easy that could have become a capsize. I am hoping some of you old salts will have advice on handling a following sea. I am all ears.

I did a search in the forums, and didn't find much dedicated to this specific topic, but please feel free to point me to a previous topic if it's been covered already.

Glad to have joined the C-Dory family, and look forward to meeting some of you at some point!

Best,
Ben McCafferty
Bainbridge Island, WA
2005 16 cruiser
 
Hello and welcome to the site!
You must keep the bow up in a following sea, this you probably already know. However, a permatrim hydrofoil will greatly increase your ability to do so. In fact it will completely change the handiling charecteristics of the boat. There are several threads on this subject and most owners of 16 CD's have installed one.
Of course we are at sea in a boat that only measures 15' 11" !! As a reminder my wife gave me a plaque which I have instelled at my helm.
It reads " O Lord Thy Sea is so large amd my boat is so small..."
Many happy journeys in your great little boat.
 
Thanks C. Jim. I do in fact have the permatrim foil, and find that I need to trim well down in many situations to keep the boat level or slightly nose high. A nice touch.
tx,
bmc
 
bmacpiper":wkqow7r8 said:
Hi again,
Found a 2005 SD16 cruiser that was too good of a deal to pass up--18.9 hours, covered the whole time, like new. Price would make you drop your beer.

So in the past four weeks, I've tripled the hours on the boat, just crabbing and fishing in Puget Sound, and have really been enjoying her. As I'm sure you all know, I get comments on the boat everywhere I go--so easy to use and looks great. In the rainy northwest, she is just perfect.

A couple of weeks ago, I was in about 3' wind waves (head on), and that was pretty uncomfortable, though passable. I started paying closer attention to the marine weather forecast, and pretty much avoid going out if it's beyond 1-2 feet.

Today was forecast to be 1 or 2 feet, subsiding, but after setting crab pots and trolling a bit, I saw a rain line coming from the north, as well as chop building. I quickly grabbed the pots and headed for harbor, but wasn't fast enough to avoid a steep 3' following sea. I broached once, but quickly got back on course. I was experimenting with different things, i.e. going slower than the waves on the big ones, faster than the waves on the small ones, etc. Other than the broach, I felt in control for the most part, but it was not a relaxing ride. As an aside, an hour later, all was calm and again in line with the forecast.

In any case, I know that Chapman basically says to let the waves pass you, but that felt a lot like impending broach as well. I ended up running mostly perpendicular to the waves, but down in a trough, i.e. matching my speed to the speed of the waves with one ahead and one behind. I was also constantly making corrections on the throttle and wheel, to keep headed perp to the waves.

Though I have hundreds (thousands?) of hours behind me on power boats, it left me humbled and feeling like it was time to do some practicing in smaller conditions. The broach really got my attention, as I was well aware of how easy that could have become a capsize. I am hoping some of you old salts will have advice on handling a following sea. I am all ears.

I did a search in the forums, and didn't find much dedicated to this specific topic, but please feel free to point me to a previous topic if it's been covered already.

Glad to have joined the C-Dory family, and look forward to meeting some of you at some point!

Best,
Ben McCafferty
Bainbridge Island, WA
2005 16 cruiser

I have to keep my 22 Cruiser trimmed nose up and match the speed of the waves to maintain any control, lots of on / off the throttle. Trim tabs are in my verrrry near future :mrgreen:
 
Will the trim tabs just let you keep nose up without regard to throttle? How will they differ from using electric trim on your main motor?

Nice pictures, BTW.

bmc
 
The hydrafoil (Permatrim) will help with the bow up. Trim tabs only with bow down. (when retracted they are neutral/or a bit above the hull.

I haven't run the 16, but the 22, you have to keep the bow up, and definately I keep one hand on the wheel, the other on the throttle. Same with the Tom Cat 225--

I spent a bit of time with some offshore racers, and they pay as much attention to the throttles as they do the wheels. I got caught in a heavy following sea, in my 18 foot Century in the Spring, and had to really work the throttle to stay on the back of a wave, where I prefer to be in following seas.

Welcome aboard and congratulations!
 
Hello! Ben...
Interesting topic. I was putting my bow into waves recently and did some broaches or dived the bow a number of times to get a feel for the dory. Not really bad conditions, but it did give me some practice. I also have plenty of time behind the weel of powerboats, but like everything else, you need to relearn and improve your skills.
Reading your post and the replies made me go and do some hunting for information and I found some interesting stuff:
---------------------
"Inbound – heading back to port:
• Approaching from sea, increase power of the vessel to catch up with the bigger set of waves.
• Position the vessel on the back of the wave (DO NOT surf down the face of the wave).
• Adjust the vessel’s speed to match the speed of the waves – but DO NOT attempt to overtake the waves."

One particularly good source is: http://www.docksidereports.com/rough_wa ... ship_1.htm by David Pascoe, in part II and III of his series. Things like:

"In a power boat, you have an advantage that sailors don't have. That is the ability to control your boat speed relative to wave speed, and along with the direction of travel, are the two most important factors. Controlling speed controls the effect a wave will have on a boat. Most people don't want to slow down when conditions get rough, but that is an inescapable necessity."

Or: "Once it happens, the only thing you can do is chop the throttle immediately!"

Also: "When following seas start to get really big, we have only two choices: either we slow down to the appropriate speed, or we have to change direction."

Good refresher...

John B
 
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