I just picked up a set of NP Glide foils S/M/L in a set with the shorter surf fuse and mast (pictured LHS).

I have previously been using the Large NP Glide foil, with small rear wing (with washer under the front bolt) as my standard setup, on longer mast(2018 pinkie)/ NP Glide windfoil fuselage (also pictured RHS). This was suggested by Bludga and has served me well to date. Noting also that I had the fuselage machined to provide additional mast/foil locations (effectively 75mm adjustment).

My question is whether there is any setup advice (rear wing) for the small and medium front wings, which I also intend to use on this same setup for higher winds. JP 135 on 4.2m-5.8m wavesails generally.
Cheers,
Mort

My current setup which I use in all winds (up to 25 knots/30) is slim medium front wing and small stab with no washers.
Sails from 7m to 4.5. But this is on an isonic 124 so your trim will be a little different on the JP. But then again if you're heavier than me, trim could be similar. Footstrap positioning on the JP is a lot further back than on my 124.

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bludga said..
My current setup which I use in all winds (up to 25 knots/30) is slim medium front wing and small stab with no washers.
Sails from 7m to 4.5. But this is on an isonic 124 so your trim will be a little different on the JP. But then again if you're heavier than me, trim could be similar. Footstrap positioning on the JP is a lot further back than on my 124.

Cheers Bludga, I'll give that a try on Medium wing.
The reason I machined the fuse was to move the lift backwards towards the straps after the first few uses where i was standing in front of both sets of straps.

Hi there, I am interested in using a Neil Pryde Glide Wind foil on a 2013 RRD Firestorm Freeride board (66cm wide) with a powerbox fin setup not designed for foils. I realise its a million dollar question but am I likely to encounter structural issues running this combination? I weigh 70kg and intend to use it in light to moderate conditions.. I realise its a difficult question to answer but any thoughts on this appreciated. Thanks

Powerbox is generally not recommended for foiling since it is risky in the fore and aft cantilevering forces exerted by the foil wing.

That said, some people use Powerbox successfully. YMMV

Be sure to mount a leash to catch the foil if something breaks.

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jules76 said..
Hi there, I am interested in using a Neil Pryde Glide Wind foil on a 2013 RRD Firestorm Freeride board (66cm wide) with a powerbox fin setup not designed for foils. I realise its a million dollar question but am I likely to encounter structural issues running this combination? I weigh 70kg and intend to use it in light to moderate conditions.. I realise its a difficult question to answer but any thoughts on this appreciated. Thanks

Power box has worked for some, especially for the first sessions with a power plate adapter. However, 66 cm widths is pretty narrow for foiling. Good freestylers can learn on boards that narrow, but average windsurfers may find it frustrating.

You CAN learn on smaller boards, but it makes the process harder.
70 kg bud learned on 86 liter board, up to foiling jibes now. Maybe 17 days.
Me, 75 kg., second day on 95 liter, 62 wide board. Wind died to 1 mph gusts, paddled in. No problem getting up in 15 mph gusts.
Retrospect....give me a 140 liter board..for light wind foiling.

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jules76 said..
Hi there, I am interested in using a Neil Pryde Glide Wind foil on a 2013 RRD Firestorm Freeride board (66cm wide) with a powerbox fin setup not designed for foils. I realise its a million dollar question but am I likely to encounter structural issues running this combination? I weigh 70kg and intend to use it in light to moderate conditions.. I realise its a difficult question to answer but any thoughts on this appreciated. Thanks

It will work but you will need more speed to pop & fly due to the narrow tail.
I use a 120L Firestorm with tracks installed so foil mast is way forward.
It's hard to pump with no tail volume & width but once flying is fine.

A few guys are using power box without issue, just stay away from sandbars

Thanks all, much appreciate the Frank advice. Will probably look to pickup a foil board abd do the job properly for once, cheers

Hey Mort, are you still using your fuselage extension at the rear ?
I am about to machine one for mine.
S size on 80 mast and fuselage, on iSonic 117.

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boardsurfr said..

jules76 said..
Hi there, I am interested in using a Neil Pryde Glide Wind foil on a 2013 RRD Firestorm Freeride board (66cm wide) with a powerbox fin setup not designed for foils. I realise its a million dollar question but am I likely to encounter structural issues running this combination? I weigh 70kg and intend to use it in light to moderate conditions.. I realise its a difficult question to answer but any thoughts on this appreciated. Thanks

Power box has worked for some, especially for the first sessions with a power plate adapter. However, 66 cm widths is pretty narrow for foiling. Good freestylers can learn on boards that narrow, but average windsurfers may find it frustrating.

I learned foiling on my 69 cm Fanatic Shark with powerbox and NP glide wing with powerbox adapter. I was always scared the box would collapse etc. On the contrary the box was always fine, even after hitting many rocks, some had high speed. The board width was never a problem. I am average.

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jules76 said..
Hi there, I am interested in using a Neil Pryde Glide Wind foil on a 2013 RRD Firestorm Freeride board (66cm wide) with a powerbox fin setup not designed for foils. I realise its a million dollar question but am I likely to encounter structural issues running this combination? I weigh 70kg and intend to use it in light to moderate conditions.. I realise its a difficult question to answer but any thoughts on this appreciated. Thanks

If you're 70 kgs go for it. I am the same. I fitted the NP glide wing on a 2010 Fanatic Shark with power box. Before buying the NP glide wing I contacted Sebastian Kornum, Danish rider, tester for NP foils, and asked him how strong or effective the pb adapter was. Noting that I would not do any 'radiculo' stuff on the foil, and my weight, he explained that the pb adapter has a large plate especially around the front of the mast that distributes the forces.

I've had many hits with rocks, many crashes with the foil, but the pb never failed. The pb adapter does its job, especially for your style of riding and weight.

As noted many times, several riders under 80 kg. have logged over 100 foil days with no damage to PB.
Plate and smaller foils.

It's the deck width as much as your weight that increases the sideways leverage on the fin box. Power box boards are generally narrower. Pumping on a wide board must put huge dynamic loads on the box. The bending moment is maximum at the box, the point at greatest distance from the line between your feet and the water reacting down at the foil end.

Wide boards are like using water pipes to extend the handles of your bolt cutters, somethings going to give.