airsail said..

Hubie said..
I really like that explanation Bryan.
So if I am about speed, aggressive and advanced parawinging, flat bottom.
If my location doesn't have strong wind, i am just learning, or just cruising, then a rocker to get me up as quickly as possible.

I found the opposite, the flat rocker gets going faster. I think the banana boards are a carry over from paddle DW where the banana helped with stability. But this isn't required with a para board as the para above your head gives you all the stability required even in the roughest conditions.


Para was adopted by the DW crew so naturally they used their DW boards, but we have moved on now, closer to winging and you don't see banana boards used for winging.

I don't agree.

a) A flat, narrow board reduces drag in flat water and during the pre-foiling phase (displacement mode, as described in hull dynamics). However, when the board gets longer, it becomes harder to generate effective pumping from the feet-making it less suitable for parawing and optimal for wing...... Just look at how racing wing boards look like

b) More rockered ("banana") boards create additional drag in flat water, but they respond much better to leg-driven pumping. That makes them better suited for parawing, where that oscillation is key to getting up on foil.

I hope it helps

FranP said..

airsail said..

Hubie said..
I really like that explanation Bryan.
So if I am about speed, aggressive and advanced parawinging, flat bottom.
If my location doesn't have strong wind, i am just learning, or just cruising, then a rocker to get me up as quickly as possible.

I found the opposite, the flat rocker gets going faster. I think the banana boards are a carry over from paddle DW where the banana helped with stability. But this isn't required with a para board as the para above your head gives you all the stability required even in the roughest conditions.


Para was adopted by the DW crew so naturally they used their DW boards, but we have moved on now, closer to winging and you don't see banana boards used for winging.

I don't agree.

a) A flat, narrow board reduces drag in flat water and during the pre-foiling phase (displacement mode, as described in hull dynamics). However, when the board gets longer, it becomes harder to generate effective pumping from the feet-making it less suitable for parawing and optimal for wing...... Just look at how racing wing boards look like

b) More rockered ("banana") boards create additional drag in flat water, but they respond much better to leg-driven pumping. That makes them better suited for parawing, where that oscillation is key to getting up on foil.

I hope it helps

Tried both, flat rocker works better for PW in our rough bay conditions.

georgsurfer said..
I learned to parawing on a KT SuperK2 83L (custom). I just had a chance to try their new parawing board in a similar size. At my 86kg the pw board is much more stable and much easier to pump up, allowing me to ride w a smaller parawing. My every day foil is the Nomad 830.

what conditions fid u have the Arc out in Georg?