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Happy to present the Hoover in action:


This is the result of searching of well working foilboard which should:
- help to lift a rider out of the water asap,
- do not restrict during riding,
- help during jibing and tacking,
- be very stable during water transitions.

I found that any V-shape bottoms sticks to the water. I thought that in this case a reversed V-shape (including a single concave) should work opposite.
And it works
Hoover is a kind of catamaran - two thick rails connected by a slim deck.
The single concave transfers into flat bottom at the tail. The rails submerge into the hull at tail too. It allows water to flow smooth under the entire deck. The air and water caught by high scoop and deep single concave have restricted space to escape (by the fat rails). It is directed under the center of the board and it works like a jet-ski. The air&waterflow elevates the board once a rider give a kick ahead even in ultra light winds.
So far I am very happy with the Hoover's performance. I think I am going to stick to this design for a while

Next Hoover in action in Mielno, Poland (pics by Mariusz Kuik).
Wind? Was any?

















If you wish to see the rest of slalomers - check out some great pics:
https://www.facebook.com/marek.bracuru/ ... 251&type=3

Marek, would you share the specs for your board? Andrzej and Blasko keep telling me your boards are simply amazing. Congrats!!!!

Andokite wrote:Marek, would you share the specs for your board? Andrzej and Blasko keep telling me your boards are simply amazing. Congrats!!!!

Thanks!
The boards are working well thanks to such riders! They give me tons of feedback.
So far my boards are used by teamriders: Tomek Janiak, Tomek Glazik, Maks Żakowski and the rest of top Polish riders: Blasko and Andrzej Ożog, Aga Grzymska. This is a dream team

Specs - Hoover the latest weapon.
I made so far 3 Hoovers. All of them are different. Each new model is more radical. I am searching the limits of the best performance.
Noticed that pro riders needs something smaller as most of the time they are airborne. The average and beginning riders need a bigger platform.

For pros my specs are like this: 145x50cm and the channel very deep (up to 4cm), minimum volume under the feet - however it depends of the foil connecting system (platforms allow to make it 3cm thin, but tuttle boxes requires min 6cm).
For the rest: 155x55cm and the channel up to 3cm. More volume in the part under feet - usually 6cm.

The rest you can see on the pics. It is difficult to describe the cross-section frame by frame . The rails in both cases are fat or very fat.

This is a sample of the first Hoover's idea (made on a train voyage) for consideration of my riders


The channel - I wouldn't expect that it works so well. Highly recommended. The boards simply does not like to stick to the water.

Once upon a time in China:

BraCuru wrote: The single concave transfers into flat bottom at the tail. The rails submerge into the hull at tail too. It allows water to flow smooth under the entire deck. The air and water caught by high scoop and deep single concave have restricted space to escape (by the fat rails). It is directed under the center of the board and it works like a jet-ski. The air&waterflow elevates the board once a rider give a kick ahead even in ultra light winds.

I like that idea!
Any chance to mount a go pro or similar under the board to see this?
But,
Do the rails inhibit the boards on the water turning as the rails would seem to act like long fins?
Sure wish I could mount my fav T bar and have a test flight!
So nice to see innovative ideas being applied to our toys, keep it up!
I really feel that my limiting factor for ultralite wind foiling is getting up enough board speed to lift off, this might be a nice improvement?
R H

revhed wrote:Any chance to mount a go pro or similar under the board to see this?

Haven't tried yet.
I think gopro wouldn't show the moment so well as a rider can experience under her/his feet.

Do the rails inhibit the boards on the water turning as the rails would seem to act like long fins?

Rather like twintip fins which gives a room to correct the heading of the board during water transitions.
Long fins would cause the board acting like a train on a railway.

So nice to see innovative ideas being applied to our toys, keep it up!

Love to observe creativeness of our industry. However we are still far away from an ideal foilboard designs.
I think the foilboards' design will go into various directions with specialised boards for each main field like learning, freeride, jumping, strapless, ultralight winds, wave, racing.
Rather no more one-board for all.

I really feel that my limiting factor for ultralite wind foiling is getting up enough board speed to lift off, this might be a nice improvement?

I believe the same.
Nowadays technique of kite handling in ultralight winds is good by most riders.
There are dedicated kites for marginal wind.
Hydrofoils demand marginal force to be able to ride.
Main goal in such conditions is to lift the board out of the water asap.
Hoover is just one of ideas to improve it. For a while I am going to develop this kind of bottom.

BraCuru wrote:

revhed wrote: However we are still far away from an ideal foilboard designs.
I think the foilboards' design will go into various directions with specialised boards for each main field like learning, freeride, jumping, strapless, ultralight winds, wave, racing.
Rather no more one-board for all.

I really feel that my limiting factor for ultralite wind foiling is getting up enough board speed to lift off, this might be a nice improvement?

I believe the same.
Nowadays technique of kite handling in ultralight winds is good by most riders.
There are dedicated kites for marginal wind.
Hydrofoils demand marginal force to be able to ride.
Main goal in such conditions is to lift the board out of the water asap.
Hoover is just one of ideas to improve it. For a while I am going to develop this kind of bottom.

R H

Hoover Pro - only for top guns. 150x50cm. This one goes to the Belgian Champion who rides Levitaz foil
The same Hoover is already in hands of the Polish Junior Champion Tomek Glazik.
The weight is 3900 grams. Not light but at least really strong and stiff.
BTW.
I would recommend 155x55cm for normal riders.



















Now guess: where is the thickest part of the hoover in the center line?
a) tail section
b) mid section
c) nose section


the rest of pics here:
https://www.facebook.com/marek.bracuru/ ... 251&type=3

Ideas, innovation, investment!
The board rails remind me of speed boats, why not on our K board HFs as well.
I for one would sure like to test one using the exact same T bar configuration in ultralite to see if indeed more board speed can be had as opposed to my so old design
R H