Flattie DRAG BOAT Top Speeds...

I would say 2 hands, but not 3.

Since we're talking hull capabilities, is there any way a TAF handle a fuel motor if today? De-tuned and slowly work it's way up. Would the W drive just generate too much lift?

Cool topic Bruce. Btw, I haven't forgotten about those nuts I owe you. Did y'all enjoy your brisk weather?


Blown Gas Flats to Rope...
In loving memory of
Chris "Church Mouse" Blevens

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Originally Posted by MrDenton

Since we're talking hull capabilities, is there any way a TAF handle a fuel motor if today? De-tuned and slowly work it's way up. Would the W drive just generate too much lift?

Cool topic Bruce. Btw, I haven't forgotten about those nuts I owe you. Did y'all enjoy your brisk weather?


Blown Gas Flats to Rope...
In loving memory of
Chris "Church Mouse" Blevens

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Conversely I didnt forget the parts list :)

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Originally Posted by MrDenton

Since we're talking hull capabilities, is there any way a TAF handle a fuel motor if today? De-tuned and slowly work it's way up. Would the W drive just generate too much lift?

Cool topic Bruce. Btw, I haven't forgotten about those nuts I owe you. Did y'all enjoy your brisk weather?


Blown Gas Flats to Rope...
In loving memory of
Chris "Church Mouse" Blevens

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It was tried and it didn't work too well the first time around (dual props)
Attachment 30646

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Originally Posted by gn7

Point being, THEN, they loaded liquid dynamite into the cylinders. Today they don't. That's why the flats then were faster and QUICKER than the flats today. 2MM was only asking about the speeds then compared to today. Engine technology is allowing them to catch up. But its hard to compete against nitrogenated fuel with booze

You no longer can really compare the 2. The TAF are running 320 feet less and its makes hitting 175 plus a little more difficult. But then, they didn't charge the tree back then like they do now. But they still have less room to get to speed.

But a Donovan on crack compared to a Brad 6 on booze. I'll take the Donovan everytime.

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The speeds and ETs were what they were because of the gearing they had to run with the rolling start. We are trying to get a fuel class back back up and running because of the new start but they are having none of it. WIth the dead stop, the volatility is taken away a little bit because you can now burn the prop and the weight of the capsule on the nose.

There are many guys that have gone over 160 in a flat bottom. Probably 8 hands. But not that many have been over 170. I am gonna guess 2 hands. When they ran the twin prop ATTA boat they kept cutting down the propellers because of all the lift they created but they endied up cutting them so small they were completely inefficient.

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Originally Posted by Outboardguru

The speeds and ETs were what they were because of the gearing they had to run with the rolling start. We are trying to get a fuel class back back up and running because of the new start but they are having none of it. WIth the dead stop, the volatility is taken away a little bit because you can now burn the prop and the weight of the capsule on the nose.

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So how much slower would they have run if they started like they do now?

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Originally Posted by Outboardguru

There are many guys that have gone over 160 in a flat bottom. Probably 8 hands. But not that many have been over 170. I am gonna guess 2 hands. When they ran the twin prop ATTA boat they kept cutting down the propellers because of all the lift they created but they endied up cutting them so small they were completely inefficient.

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What is/was your top speed so far??? IF my memory is right you are up well over 10MPH since the last 3 years at the beginning of the red shazam...

Has anything changed to push the limit of a flattie beyond what the fastest blown fuel boats went back in the day??? Wings/aerodynamics with the capsule/etc...

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Originally Posted by WESTERNAERO

So how much slower would they have run if they started like they do now?

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I think you would still see those kinds of speeds but the ETs would be crazy low. You can load these things much harder now with the new start. Its hard to describe because with a flat bottom you have to be able to drive them with all that power. It's not just a point and shoot deal.

Bruce we have run 171 twice with Kevin's boat and at Havasu went 175. Normally though we are in the low to mid 160s in Kevins boat and mid to high 150s in Shazam. This all about to change though as we brought on Jim Lange who built Cole Flats back in the day. You will see passes in the 4's this year.

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Originally Posted by Outboardguru

This all about to change though as we brought on Jim Lange who built Cole Flats back in the day. You will see passes in the 4's this year.

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Good move! Can't wait to see the numbers!