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Hooters scl, what are the black things ?

Old 11-18-2006, 02:23 PM
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Default Hooters scl, what are the black things ?

Looking at the pic of the boat in powerboat magazine from the las vegas race, what are the little black thinks on the transom ?

They look like little spoilers or something.
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Old 11-18-2006, 02:29 PM
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Default Re: Hooters scl, what are the black things ?

it's where the air leaves the bilge....
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Old 11-18-2006, 02:35 PM
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Default Re: Hooters scl, what are the black things ?

Why are they elevated ?
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Old 11-18-2006, 02:37 PM
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Default Re: Hooters scl, what are the black things ?

Because air is coming out
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Old 11-18-2006, 02:41 PM
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Default Re: Hooters scl, what are the black things ?

Originally Posted by yahoo
Why are they elevated ?
i think they are just carbon fiber plates on hinges, and when the pressure in the bilge gets high enough, they open...

motley runs theirs on the back...

reliable runs their under the deck....
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Old 11-18-2006, 03:50 PM
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Default Re: Hooters scl, what are the black things ?

Thanks
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Old 11-18-2006, 06:18 PM
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Default Re: Hooters scl, what are the black things ?

I noticed something on my cat the wiring troughs (pvc tubes)
that run in the gunnels extend from both engine bays and run length wise to the cabin. They are dumping what appears to be blower belt dust and or carbon. I thing this is happening
because the scoops are actually pressurizing the engine bays and the troughs are the reliefs.

I can see the need for the reliefs in this post.
One idea that comes to mind is to open the rear of the
hatches.

When I ran the boat on the maiden run the pins were not in the hatches and the hatches would raise enough to expel
the air.
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Old 11-18-2006, 07:21 PM
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Default Re: Hooters scl, what are the black things ?

The new Sunsation F4 has these as well. They are butterflies on the transom that open when running WOT. Pretty cool for a non-race, production boat.
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Old 11-18-2006, 07:33 PM
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Default Re: Hooters scl, what are the black things ?

Outerlimits has had them on their boats since the first 42 came out.
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Old 11-18-2006, 08:26 PM
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Default Re: Hooters scl, what are the black things ?

Originally Posted by KNOT-RIGHT
I noticed something on my cat the wiring troughs (pvc tubes)
that run in the gunnels extend from both engine bays and run length wise to the cabin. They are dumping what appears to be blower belt dust and or carbon. I thing this is happening
because the scoops are actually pressurizing the engine bays and the troughs are the reliefs.

I can see the need for the reliefs in this post.
One idea that comes to mind is to open the rear of the
hatches.

When I ran the boat on the maiden run the pins were not in the hatches and the hatches would raise enough to expel
the air.

If I am reading this correctly you are saying that pressurized air from your bilge is entering your cockpit while running? If this is the case you should contact the manufacturer ASAP to find a fix, that is a very serious safety issue. Your cockpit should be well sealed from the engine compartment to protect you from possible fuel fumes which could cause fire/explosion and also carbon monoxide. A fire in the bilge would be forced by this pressure into your cockpit at an accelerated rate.

All ventilation should carry any air from the bilge well clear of the cockpit, and optimally should be easily closed incase of a fire.

A fiberglass boat is one of the most dangerous places you can be in the event of a fire, fiberglass is highly flammable, it produces toxic fumes when burned and it holds hundreds of gallons of explosive fuel...in short, when it comes to an emergency you need all the breaks you can get.
 

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