Who had more info?:

Hollow Ace Zero: The first-ever hollow downwind foil board in the sport, this board weighs in at just 4 kilos

A thick foil board is exactly where hollow builds make the most sense. I wonder what the construction looks like on the inside.

Only info I can find on Zero Construction: sup.star-board.com/hard-paddle-board-constructions/zero-construction/

Here is a link to the ACE FOIL LIGHTNING boards.

The shape looks very promising and I have to assume that STARBOARD knows there stuff from the 1,000's of race boards they have built, tested and won with over the years.

The 83 liter board that Zane is referencing is listed at 4.96 kg. I supposed you could call that 4 kilos

At that volume and weight it comes out to 13 lbs / 100 liters or 5.9 kg / 100 liters. High performance would be more like 10 lbs / 100 liters. These weights are 30% heavier than "high performance."

But maybe this is NOT the hollow construction. There was a big debate as to whether hollow would end up being lighter than other build strategies given all the constraints around the hollow design.

IF, IF the 83 liter (hollow) board were exactly 4.000 kg then the ratio would be 10.6 lbs / 100 liters or 4.8 kg / 100 liters.

sup.star-board.com/paddle-board/hard-paddle-board/ace-foil-lightning/

Sounds like the Patrick air inside windsurf boards. Basically thick PVC built like a boat or hollow wood surfboard. Makes total sense if you are making enough to have a mold.
Shouldn't be a super hard method to DIY using boat building techniques.

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Beasho said..
Here is a link to the ACE FOIL LIGHTNING boards.

The shape looks very promising and I have to assume that STARBOARD knows there stuff from the 1,000's of race boards they have built, tested and won with over the years.

The 83 liter board that Zane is referencing is listed at 4.96 kg. I supposed you could call that 4 kilos

At that volume and weight it comes out to 13 lbs / 100 liters or 5.9 kg / 100 liters. High performance would be more like 10 lbs / 100 liters. These weights are 30% heavier than "high performance."

But maybe this is NOT the hollow construction. There was a big debate as to whether hollow would end up being lighter than other build strategies given all the constraints around the hollow design.

IF, IF the 83 liter (hollow) board were exactly 4.000 kg then the ratio would be 10.6 lbs / 100 liters or 4.8 kg / 100 liters.

sup.star-board.com/paddle-board/hard-paddle-board/ace-foil-lightning/

This is not the Hollow Ace Zero construction but the Blue Carbon construction. Seems like details are still to be released.

At least the 'blue carbon' construction is hardly impressively light at 6.35Kg for a 122L board. That leaves the zero construction a lot of work to do just to achieve an average weight per liter.

I tried the 8.4x19 Ace Lightning and it is relative stable for its width and feels very light and solid at the same time. I don,t know what weight you guys are used to, but I was impressed by it.For my foils ( Kujira1440 and AFS Enduro1300) the tail felt too long. With the I mean that when paddling up on a bump of wave, the longer tail catches the short period bump and pushed the nose down. Because of the relative shorter standing arera I couldnt step further to the back. That can be my lack of skills but I didn,t experience that with the North Horizon 7.10 and my Sunova7.6x23
The bonus of the longer tail deasign is that it makes paddling straight very easy as it works a bit like a rudder.

The Lighting was an contender to replace my Sunova 7.6x23x137l where I,m still learning on to DW and supfoil with in the waves, The list is now down to the Horizon 8.4, AFS 8.4x20 and Sunova 8.4x20...all around 125l.

The only way to get a board that weighs LESS than 10 lbs / 100 liters is to

1) Buy a Custom from a capable builder or
2) Build the board yourself.

I have built 4 boards that ranged 7.6 to 9.6 lbs per 100 liters with 500+ sessions among them.

IF the Hollow Starboard comes out at 4.0 KG the other comparable production boards would be the Ginxu Dragonflies. However they have been around for 2 years now.

I think we are doing a lot of extrapolation from a one-off video where Zane says "I think it is coming in at something like 4 kilos." That's a pretty vague statement.

If it is indeed 4kg, I would get quite excited. Here's the thing - Beasho, your weight/100L is not really going to follow here. A hollow board will scale with surface area not volume. I estimate the surface area of a 130L board right on 2m^2, but a 100L board will have about 1.8m^2 (scales more closely with cube root rather than linear). So 4kg @ 100L becomes 4.4kg @ 130L.

While 4kg may or may not be groundbreaking weight for a 100L board, us big boys could get pretty darn excited about a 4.4kg 130L board.

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jondrums said..
While 4kg may or may not be groundbreaking weight for a 100L board, us big boys could get pretty darn excited about a 4.4kg 130L board.

Yes! A couple of years ago, I built a 4.4kg, 128L downwind SUP foil board and documented the entire process, including materials and methods, in this thread.

www.standupzone.com/forum/index.php/topic,38336.0.html

It's definitely achievable to hit these weights, even at larger volumes, with the right construction approach. Interestingly, I managed this without NASA-grade technology, expensive molds, or hypothetical projections-just accessible materials, minimal cost, and some hands-on experience.

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Beasho said..

jondrums said..
While 4kg may or may not be groundbreaking weight for a 100L board, us big boys could get pretty darn excited about a 4.4kg 130L board.

Yes! A couple of years ago, I built a 4.4kg, 128L downwind SUP foil board and documented the entire process, including materials and methods, in this thread.

www.standupzone.com/forum/index.php/topic,38336.0.html

It's definitely achievable to hit these weights, even at larger volumes, with the right construction approach. Interestingly, I managed this without NASA-grade technology, expensive molds, or hypothetical projections-just accessible materials, minimal cost, and some hands-on experience.

that's impressively light. !

More details:

"Ace Foil Lightning ZERO (8'2" x 18", 101L) - the first-ever production hollow foil board! This revolutionary design takes performance to the next level with an ultra-light 4.4 kg construction and a pure hollow build with reinforced PVC stringers-no EPS core!"

Had the opportunity to try the Zero on flatwater and a couple of nuking Cape Town downwinds. The weight is a gamechanger on foil. Pumping and turning and connecting bumps just came alive! And the stability of this board at 18" wide is surreal. This could be a new benchmark. The one we have here is 4.4kg.

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PeterP said..
Had the opportunity to try the Zero on flatwater and a couple of nuking Cape Town downwinds. The weight is a gamechanger on foil. Pumping and turning and connecting bumps just came alive! And the stability of this board at 18" wide is surreal. This could be a new benchmark. The one we have here is 4.4kg.

awesome. Lightness of the board for DW is so crucial.

I wonder if the core is made with Nomex. I was flirting with an attempt to build one with offcuts from airline industry. Didnt pull it off- couldn't land any nomex with affordable cost.

A mate did get a second hand Starboard Evo years ago.
Years ago I'd discussed with my shaper that a Vacuumed bagged molded hollow board should be lighter and strong with the right skin and internal structure