Rotary boat
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FTE Leadership Emeritus
Joined: May 2004
Posts: 18,787
Likes: 30
From: Melbourne, Aus
I think the skiers use 65' lines.
I am not really sure though, I didn't ski or race the boat, I only programmed the engine.
We don't use trim tabs, we were looking at them, but our boat is so much lighter than the big block chevies, especially in the rear where it matters, we didn't feel that it would be worthwhile, we will look at them for next year though...
I am not really sure though, I didn't ski or race the boat, I only programmed the engine.
We don't use trim tabs, we were looking at them, but our boat is so much lighter than the big block chevies, especially in the rear where it matters, we didn't feel that it would be worthwhile, we will look at them for next year though...
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FTE Leadership Emeritus
Joined: May 2004
Posts: 18,787
Likes: 30
From: Melbourne, Aus
The boat got back from the Australian National boat drags last week...
It ran a 9.8s 1/4mile!!!! In a boat!!!
Trap Speed was 108mph
Top speed is now 126mph!!!
It ran a 9.8s 1/4mile!!!! In a boat!!!
Trap Speed was 108mph
Top speed is now 126mph!!!
Cargo Master
Joined: Aug 2004
Posts: 2,542
Likes: 22
From: Murphysboro, IL
Originally Posted by BigF350
118mph so far...
107mph with skiers behind it
We are hoping to have it to about 130/135mph by next years event at least.
107mph with skiers behind it
We are hoping to have it to about 130/135mph by next years event at least.
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FTE Leadership Emeritus
Joined: May 2004
Posts: 18,787
Likes: 30
From: Melbourne, Aus
Yup, at that speed it would just be like pavement...
The skiers that are behind the boat have been racing since they have been early teenagers though, and they wear full facce helmets, and body armor.
I still wouldn't do it though...
The skiers that are behind the boat have been racing since they have been early teenagers though, and they wear full facce helmets, and body armor.
I still wouldn't do it though...
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FTE Leadership Emeritus
Joined: May 2004
Posts: 18,787
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From: Melbourne, Aus
Originally Posted by Crazy001
9.8 in a boat! Wow! That's incredible.
how much power does that thing have?
how much power does that thing have?
We are going to start winding the power out of it soon though.
Triple rotaries should be capable of around 1400hp.
It was beating Twin supercharged alcohol chevy big blocks, engines with 4 times the capacity, and ours runs on pump gas (premium).
Lead Driver
Joined: Apr 2002
Posts: 7,746
Likes: 7
From: Tampa Bay, FL USA
Originally Posted by BigF350
G'day guys.
I have just finished a project with a few mates, which is to create what is to our knowledge the worlds first (but certainly not the last) rotary ski boat...
I have just finished a project with a few mates, which is to create what is to our knowledge the worlds first (but certainly not the last) rotary ski boat...
Elder User
Joined: Feb 2005
Posts: 931
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From: Cool, CA
Originally Posted by BigF350
118mph so far...
107mph with skiers behind it
We are hoping to have it to about 130/135mph by next years event at least.
107mph with skiers behind it
We are hoping to have it to about 130/135mph by next years event at least.
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FTE Leadership Emeritus
Joined: May 2004
Posts: 18,787
Likes: 30
From: Melbourne, Aus
Thanks for that Jeff, I will try to find more details.
As for who the skiers are, the boat owners brother, and another professional skier.
Both have been professionally racing as water skiers for 20 odd years.
Both of them are built like tanks too...
As for who the skiers are, the boat owners brother, and another professional skier.
Both have been professionally racing as water skiers for 20 odd years.
Both of them are built like tanks too...
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FTE Leadership Emeritus
Joined: May 2004
Posts: 18,787
Likes: 30
From: Melbourne, Aus
I packed my pants when I was in the boat at 115mph.
The thing was doing 30ft long jumps over merely ripples...
As you can see from the video (in which approx 100mph was hit) its a rather scary experience.
The thing was doing 30ft long jumps over merely ripples...
As you can see from the video (in which approx 100mph was hit) its a rather scary experience.
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