Class one blow-over

**home made tunnel** · 11-30-2023, 01:27 PM

How come we haven’t invented rear anchors like being launched by an airbag going off to prevent blow overs yet lol

**XstreamVking** · 11-30-2023, 01:57 PM

There are pneumatic spikes that deploy from the transom to drag the boat down from speed and settle it somewhat. If they would help in offshore, I don't know.

**VkingMike** · 11-30-2023, 02:02 PM

Originally Posted by XstreamVking

There are pneumatic spikes that deploy from the transom to drag the boat down from speed and settle it somewhat. If they would help in offshore, I don't know.

I've seen this on a few fast airboats here locally.

**JPEROG** · 11-30-2023, 06:20 PM

You would have 1/2 second window to deploy something that extended from the boats running surface to the water. Once its in the air you need a parachute or flaps to slow it.

Joe

**David** · 11-30-2023, 07:00 PM

Airbags usually are fully inflated 50 ms after impact. Half a second is like all day, except that it would take something a lot bigger than an automotive airbag to change the trajectory of a big boat instead of a human.

**David** · 12-01-2023, 04:18 PM

Could a big center tab that deployed in 50 ms eliminate blow over? I don't think it would be hard to make one, but I would not volunteer to do the testing.

fyi, a ms is a thousands of a second.

**CUDA** · 12-01-2023, 04:50 PM

Just stay 10 to 12 feet apart and no one dies or destroys a 2 million dollar boat.

It's that simple, no one is asking anyone to slow down; just don't drive STUPID

Once again, when two tunnel boats get near each other at speeds over 100 MPH

The lift their hulls make increases greatly and quickly

https://fb.watch/oG3-CToDln/

**powerabout** · 12-01-2023, 09:20 PM

Originally Posted by JPEROG

You would have 1/2 second window to deploy something that extended from the boats running surface to the water. Once its in the air you need a parachute or flaps to slow it.

Joe

how about trim down when you get close to a boat?

**CUDA** · 12-01-2023, 09:48 PM

Originally Posted by FUJIMO

...there's a lot of water out there, no reason to risk racing like that, unless you don't give a crap & respect each other. there's been decades of these exact same cat racing situations to learn from, resulting in many deaths & injuries & boat damage, in key west alone, let alone other venues. just glad no one got killed this time...

Said It Best

**JPEROG** · 12-01-2023, 10:43 PM

There is only one straight line from each turn buoy to the next. Everyone wants to take the shortest course around and when you have classes that are so equal this stuff will continue to happen in all forms of racing. I tend to agree that its not worth risking life or limb for a trophy and 20% of what you spent to be there and participate-"this is why I am now whats called a spectator".

Joe

**Mark Poole ModVP** · 12-02-2023, 07:16 PM

If you look at the vid from the camera on the other boat, they touched hard enough to lift one of the hulls of the other boat out of the water. That sudden reduction in hydro drag made the boat go over.

**XstreamVking** · 12-03-2023, 10:25 AM

There's a lot at stake in these high end races. Factor in some ego's and you have a potential for disaster. they call it racing. No where near as crazy as noose car though.

**Jim Speros** · 12-03-2023, 03:24 PM

Click image for larger version.

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Outboard Cats race just as hard as Class 1.

**donmac** · 12-07-2023, 11:58 AM

Originally Posted by David

Could a big center tab that deployed in 50 ms eliminate blow over? I don't think it would be hard to make one, but I would not volunteer to do the testing.

fyi, a ms is a thousands of a second.

the tabs already hanging out the back so the position is not going to have much effect on boat at steeper angles! there more for packing air in the tunnel for stern lift! I was scared ****less testing with that thing in the beginning, was always afraid we would trip on it and stuff!

**Jim Speros** · 12-07-2023, 01:53 PM

Originally Posted by David

Could a big center tab that deployed in 50 ms eliminate blow over? I don't think it would be hard to make one, but I would not volunteer to do the testing.

fyi, a ms is a thousands of a second.

A center tab on a cat adds to the compression. It would not push bow down. It would lift the boat more.