Boating Jargon
Discussion
It's planing.
It means surfing on the waves. Planing is highly desirable in a sailing dinghy as it increases your speed across the water.
In a motor boat it's not so desirable as it causes the propeller to 'skid' in the water and lose grip and therefore drive.
In very simplistic terms it's like a surfer riding his board on a wave, or driving your car with a strong tail wind.
It means surfing on the waves. Planing is highly desirable in a sailing dinghy as it increases your speed across the water.
In a motor boat it's not so desirable as it causes the propeller to 'skid' in the water and lose grip and therefore drive.
In very simplistic terms it's like a surfer riding his board on a wave, or driving your car with a strong tail wind.
lawrence567 said:
Ok,
So in inflatable terms it means that if you have say a too poweful outboard it'll not be efficent?
Not sure I understand that question.So in inflatable terms it means that if you have say a too poweful outboard it'll not be efficent?
All RIBs (for example) plane, they are said to 'get up on the plane'. So going slowly they will plough through the water and then, with a bit of throttle rise up out of it and ride on the surface.
Big yachts and what-not, do not plane. They plough through the sea. As above, they have displacement hulls.
If you have an underpowered motor, you might not have enough power to get up on the plane. Your inflatable will therefore not be efficient. I have a mate with a little pilot boat and this would not get up on the plane until about 21knots - somewhere near the maximum performance of his engine. Inefficient.
Too powerful and you'll plane easily - however you might start to chine walk, which can be extremely dangerous.
I understand now, i just re-read & it said, designed to optimise planing, i'm a spaz.
However i do have another question.
If an inflatable has a power / HP rating.
Say the rating is 10HP & you put a 15HP outboard on the back of it, obvioulsy your operating outside of the manufacturers recommendations, voiding warranty etc & the extra weight of the engine, but what is the effects of this, i presume front end lifting up & flipping?
However i do have another question.
If an inflatable has a power / HP rating.
Say the rating is 10HP & you put a 15HP outboard on the back of it, obvioulsy your operating outside of the manufacturers recommendations, voiding warranty etc & the extra weight of the engine, but what is the effects of this, i presume front end lifting up & flipping?
Tyre Smoke said:
NDA said:
Big yachts and what-not, do not plane. They plough through the sea. As above, they have displacement hulls.
You sure....
lawrence567 said:
I understand now, i just re-read & it said, designed to optimise planing, i'm a spaz.
However i do have another question.
If an inflatable has a power / HP rating.
Say the rating is 10HP & you put a 15HP outboard on the back of it, obvioulsy your operating outside of the manufacturers recommendations, voiding warranty etc & the extra weight of the engine, but what is the effects of this, i presume front end lifting up & flipping?
Potentially, yes. But in reality there comes a point where the maximum speed of the hull through the water is reached. Bigger engine doesn't always mean more speed.However i do have another question.
If an inflatable has a power / HP rating.
Say the rating is 10HP & you put a 15HP outboard on the back of it, obvioulsy your operating outside of the manufacturers recommendations, voiding warranty etc & the extra weight of the engine, but what is the effects of this, i presume front end lifting up & flipping?
A 75hp outboard on your 6' tender dinghy would just sink it, but bolt it to your 12' RIB and you'd have quite a handful after about 20 knots - if you got that far before it started to chine steer.
lawrence567 said:
Ah i don't have anything that size, i've just bought a small dingy.
About 2.8m or so in length.
I'm not saying i'm going to, but if it's rated to say 3HP & i stuck a 5Hp on it would it do much to it?
No, that would be fine, even up to 20hp I would think you'll be okay. But that would be like putting a big V8 in a Micra!About 2.8m or so in length.
I'm not saying i'm going to, but if it's rated to say 3HP & i stuck a 5Hp on it would it do much to it?
Ah i see, no probs in that case.
I bought a small intex seahawk 2 inflatable & stuck a little British Seagull on the back.
Now i did'nt expect it to be fast, but it barely pushed me & one of my friends along in it, to the point where unless the sea was like a mirror it would probably be unsafe, hence why i've upgraded to a "proper" inflatable & getting a bigger outboard for cove exploring etc.
I bought a small intex seahawk 2 inflatable & stuck a little British Seagull on the back.
Now i did'nt expect it to be fast, but it barely pushed me & one of my friends along in it, to the point where unless the sea was like a mirror it would probably be unsafe, hence why i've upgraded to a "proper" inflatable & getting a bigger outboard for cove exploring etc.
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