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Old 24-11-2014, 23:05   #76
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Re: Why is Planing Ability Important in a Dinghy?

Another advantage to a little bit more power on your dingy you can side tie to your mother ship and make headway in some conditions should that occasion should ever arise
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Old 25-11-2014, 06:25   #77
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Re: Why is Planing Ability Important in a Dinghy?

Here is what I personally encountered.

We have a 10' West Marine inflatable keel dinghy and originally had a 6hp Suzuki 2 stroke on it. With just me in it, it would push water and make about 5kts. With my wife and two young boys added to it, we were lucky to get 3kts. During a Memorial Day trip we were caught in an outgoing tidal current that was between 2-3kts. It took us over an hour to go across the harbor and we were soaking wet by the time we got there.

I have since upgraded to a 9.9 four stroke. It will plane with me and my two boys and will run 23kts. With my wife added in it won't plane but will push 10kts. I think if I work with changing the prop pitch I should be able to get it up on plane.

Point being - have and not need is a lot better than need and not have.
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Old 25-11-2014, 11:27   #78
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Re: Why is Planing Ability Important in a Dinghy?

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Originally Posted by Randyonr3 View Post
We've found that West Marine sells a hard bottom dink, double floor , with a folding transom that allows the dink to be folded up and put into a bag about the size of a large surf board..

Our 10' RIB has a folding transom, and I'm not a fan.

It was important to us before we bought a trailer, when we routinely off-loaded the dinghy for the winter and stuffed it into the back of our Suburban for transport to home storage.

But when folded, it also puts some strain on the adhesive that connects transom to tube. Not an insurmountable issue, but keeping the tubes inflated helps that junction. And that in turn, along with the trailer, eliminated our need for a folding transom.

FWIW, we carry the RIB on a davit system when it's aboard. Once we got the trailer we could also get a larger motor, too. We can still launch within about 2 minutes, most of which is simply about keeping the winch strap dry. For emergency launch, I can get it free in about 15 seconds by inserting the plug, unsnapping the winch strap, and then cutting the sacrificial tie-down rope.

-Chris
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Old 25-11-2014, 13:29   #79
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Re: Why is Planing Ability Important in a Dinghy?

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Originally Posted by eosvan View Post
Another advantage to a little bit more power on your dingy you can side tie to your mother ship and make headway in some conditions should that occasion should ever arise
John
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Old 26-11-2014, 20:02   #80
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Re: Why is Planing Ability Important in a Dinghy?

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Our 10' RIB has a folding transom, and I'm not a fan.

It was important to us before we bought a trailer, when we routinely off-loaded the dinghy for the winter and stuffed it into the back of our Suburban for transport to home storage.

But when folded, it also puts some strain on the adhesive that connects transom to tube. Not an insurmountable issue, but keeping the tubes inflated helps that junction. And that in turn, along with the trailer, eliminated our need for a folding transom.

FWIW, we carry the RIB on a davit system when it's aboard. Once we got the trailer we could also get a larger motor, too. We can still launch within about 2 minutes, most of which is simply about keeping the winch strap dry. For emergency launch, I can get it free in about 15 seconds by inserting the plug, unsnapping the winch strap, and then cutting the sacrificial tie-down rope.

-Chris
I'd put mine on a trailer also but I cant seem to find a hitch that bolts to the back of my boat..
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Old 23-06-2019, 01:26   #81
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Re: Why is Planing Ability Important in a Dinghy?

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You get wet if you drive at hull speed but never a drop of spray at planing speed.


Mark
That's not right. I got totally soaked planing my dinghy into a 20knt wind when heading into town. Even planing you will still get some bounce over the waves and when the wave hits the bottom it will send up a load of spray.

Another myth is that you need a large motor in high winds. With a nasty sea state and over 20knt winds I easily got back to my boat from shore in Malta 2 up in with a little 3.5hp Mariner.
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Old 23-06-2019, 03:15   #82
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Re: Why is Planing Ability Important in a Dinghy?

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That's not right. I got totally soaked planing my dinghy into a 20knt wind when heading into town. Even planing you will still get some bounce over the waves and when the wave hits the bottom it will send up a load of spray.

Another myth is that you need a large motor in high winds. With a nasty sea state and over 20knt winds I easily got back to my boat from shore in Malta 2 up in with a little 3.5hp Mariner.


I agree, 3.5 hp is plenty for nearly any dinghy unless currents are more than 3-4 knots. That said my new RIB with 15 hp is brilliant and planes easily and quietly. The trick to not getting wet in my experience is to go dead straight upwind so spray gets deflected away and not blown back into your face. Then when abeam of destination, turn 90 deg and head in on a ďbeam reachĒ
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Old 23-06-2019, 08:18   #83
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Re: Why is Planing Ability Important in a Dinghy?

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Originally Posted by mikedefieslife View Post
That's not right. I got totally soaked planing my dinghy into a 20knt wind when heading into town. Even planing you will still get some bounce over the waves and when the wave hits the bottom it will send up a load of spray.

Another myth is that you need a large motor in high winds. With a nasty sea state and over 20knt winds I easily got back to my boat from shore in Malta 2 up in with a little 3.5hp Mariner.
Many circumstances vary and there certainly isn't one set outcome. Sure, if you try to go too fast in 20 knots of wind and waves you can get wet, you are also going to get doused most of the time going slow in that. In a less troublesome typical wind chop I have found that generally, planing is the way to go for sure. In more/larger wave action planing without excessive speed is often a good choice.
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Old 23-06-2019, 16:25   #84
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Why is Planing Ability Important in a Dinghy?

Best way to stay dry in my opinion is to run on plane bow high, the speed where it just planes but before the bow comes back down.
Usually need a big motor to do that as with a smaller motor to get to plane, you move forward to lower the bow cause you donít have enough thrust to power thru.
To ride that bow high, aft CG often takes full throttle on my 20 hp motor.

But sometimes itís so bad that no matter what your going to get wet, those times we usually just donít go.
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