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Will wind effect the boats performance

Old 09-07-2020, 08:52 PM
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Default Will wind effect the boats performance

On the Chesapeake Bay in Maryland if the wind is blowing 15 mph would that effect a 25 ft cruiser performance if you were heading into the wind ? Could it reduce your speed by 5 mph and actually make you fall off plane ? In the river I was running at 25 mph but as soon as I got out into the bay at the same throttle I went down to 15 mph and almost fell off plane. Could the wind out on the bay have done this ?
Old 09-07-2020, 08:59 PM
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Yup but seems like a lot to drop off. Was current involved too?
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Old 09-07-2020, 09:32 PM
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The wind will not only affect the speed, but also your course made good.
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Old 09-07-2020, 09:45 PM
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yes there was current involved. and my mph was gps speed.
Old 09-07-2020, 10:01 PM
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Definitely. Are you asking because you think something was wrong?

Easy way to check is though is do a 180 and run with the wind.

I also imagine with the wind you were heading into some waves too? That can slow you down as well.


10mph is a lot to lose, but makes since if you were barely on plane. Doesn’t take much to pull you off plane.
Old 09-07-2020, 10:35 PM
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Last weekend the head wind was so bad my boat wouldn't plane.
Old 09-08-2020, 05:59 AM
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You also headed into the waves which will slow you down. Did you have a full set of windscreens installed. That also will have a big impact.
Old 09-08-2020, 06:08 AM
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wind lifts my boat on the bay and i get +2 mph
Old 09-08-2020, 07:28 AM
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If you have to ask that question, you don't need to be Boating at all !!!
Old 09-08-2020, 07:56 AM
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Originally Posted by amarcafina View Post
If you have to ask that question, you don't need to be Boating at all !!!
Maybe he’s new to boating.

Not everyone knows the answer to everything; that’s why this forum exists.

And it’s “boating” not “Boating”.

If you don’t know what words to capitalize and what words not to, you don’t need to be responding to people at all!

That’s what you sound like.
Old 09-08-2020, 08:01 AM
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Originally Posted by FlatStripes View Post

Jerk..
+1
Old 09-08-2020, 08:45 AM
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I lose a few mph in to the wind, current, etc. Probably 3-4mph on my 23’ proline.
Old 09-08-2020, 08:57 AM
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Is it a true Cruiser or Cuddy Cabin?
A typical 25ft Cruiser will have alot of front profile out of the water for that wind to hit.
Plus, your boat will lose speed in chop produced by 15mph wind. Tide flow may take another mph off your speed too.
If you were in the river and the wind was at your back, that was adding to your speed.

There are many boats that the difference of just a few RPM brings it from 20mph up to 25mph really quick. As you can see, Wind and chop sucks the life out of the boat efficiency.
I boat mostly in the ocean but used to boat (ok, one year) in the bay.. you don't always get to go as fast as you want, You often have to manage the throttle to find a sweet spot of speed vs beating yourself and your passengers to death.

Happy Boating.
Old 09-08-2020, 10:56 AM
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Yup. Had you turned around and went with the wind and current, you would have picked up speed.
Old 09-08-2020, 11:52 AM
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Winds were mostly out of the north this weekend. Assuming you came out of a river (running with an outgoing tide), and turned up the bay (running against the tide) you would certainly experience a noticeable drop in speed. If the chop also became much more noticeable then the lack of prop "bite" could compound the problem further.......I'm still surprised you saw a 10 mph swing though.
Old 09-09-2020, 07:46 AM
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I think it was a combination of factors. 1. I had 7 people on the boat. ( Maybe to many people ) Two were in the cabin. 2. Some growth on the hull but not many barnacles ( I pulled the boat yesterday to look ) 3. The wind we were heading into going north east across the bay. 4. The waves were a little bigger then normal. 5. And maybe the current.

Once I got out of the bay and into the river I was able to pick up speed to 20 mph. The boat will normally run 30 mph wot with 2 people on board in the river. However I have had something similar happen before with just 4 people on the boat going into heavy winds. It ran better on the way back. So I guess the winds really do have a effect on the boat.
Old 09-09-2020, 08:35 AM
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My Buzzard’s Bay experience is the greater the wind, the greater the seas. Cannot think of anything less enjoyable than pounding in 4-5 footers. Waves splashes well over my helm’s hardtop 18’ above the water. So does wind by itself make a difference? Maybe not as much as body & boat punishment.
Old 09-09-2020, 08:55 AM
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Tide has a very simple effect on your speed over the ground (but no effect on your speed through the water) - it's just like driving on a moving road - assuming flat calm water, if your speed through the water is 25mph, heading against a 2mph tide, your speed over ground is 23mph, if you're running with a 2mph tide, your speed over ground is 27mph - and that's true of anything from a 13ft BW to a ship. Wind effect is less easy to predict even in fact calm water, as it depends on how streamlined your boat is, but heading into a 15mph wind won't of course take 15mph off your speed. Added to which, as others have already said, the wind will affect the sea state and that will also rob speed from your boat to a greater or lesser degree - again depending on the boat.

Add to this a fouled bottom (weed or slime can rob more speed than barnacles), a less than ideally distributed load and you have enough factors to make a difference of 10mph.
Old 09-09-2020, 09:05 AM
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Yes.
Old 09-09-2020, 09:11 AM
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Originally Posted by rocksandblues View Post
wind lifts my boat on the bay and i get +2 mph
Same here. If I'm headed into a light chop I can pick up a few MPH, gets a little more air under the hull.

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