Hello, I have an old Ftype 138 and a select F1 Foil with a 90 cm fuselage. I measured the distance between the mast base and the first finbolt, that's 115 cm. I saw on a youtube vid a person who told the distance between mast and fin should be 85 cm ?

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JoSpeed said..
Hello, I have an old Ftype 138 and a select F1 Foil with a 90 cm fuselage. I measured the distance between the mast base and the first finbolt, that's 115 cm. I saw on a youtube vid a person who told the distance between mast and fin should be 85 cm ?

Depends a lot on your type of riding. Generally, with bigger sails and race fuselages you can ride further forward, with an average 90cm fuselage its really dependent on your sailsize. For wavesails you want to ride the mastfoot a lot further back, for if you rake the sail backward it loses power. You want to have the sail upright at all times, hance the rearward mastfoot position recommended by Balz. He's also chasing maximum pop, looseness in the carves and planing power with the minimal sized sail. Your foil is on the more powerful end of the spectrum for a 90cm I believe, so a little further forward than your mates is normal, but we're talking about 2-3cm.

I've only seen 2 foils which require a mastfoot position of around the 115 mark, and those are the Lokefoil Race PWA and the Phantom R. Even the starboard race 115+ fuselage can be sailed further back than that. your fuselage is a lot less powerful than all of those. Generally: If you're riding 8.5 and up 108-112 is the right place for most foils. For a 7.0 I'd advise somehwhere around the 105-108 mark, for smaller I'd advise further back, although 85cm is an extreme, think more around 100 for a 5, 97 for a 4.

Normally I'd advise to move the straps forward and your mastfoot back, if you need 115 to keep the foil in the water you probably dont have your straps setup correctly. However, on a starboard like the F-Type the footstraps are already very far forward compared to prety much any nother board on the water, so try just moving the mastbase back and adjusting your technique, work incrementally. If you feel you cant do anything but bend your frontleg when going upwind (only upwind, all other directions its natural to have to bend the frontleg) and are no longer comfortable your mastfoot is too far back.

Start at 110 cm and adjust from there. This is a very dynamic sport physics-wise. You will have to make adjustments in front wing position (if possible, using a Power Plate or Slingshot A B C or track mount), footstrap position, and mastbase position.

Making adjustments is a big part of the fun. Could be frustrating, too, so pick some nominal starting points and adjust from there.

I made a youtube a couple years ago about this where you actually measure things rather than guessing. After a couple years, dozens of sessions, changes in equipment, and a big improvement in skills, I am still using these settings as my defaults.

I had a look at my Hover 122, Naish 1150 , 5.0 wave sail setup. My rear strap is right over the top of the foil mast and the most comfortable position I've found for the sail mast is 100 cm forward from there. Who knows if its right, I'm still learning too. Hopefully I'm in the ballpark.

We had this discussion about 1 year ago
www.seabreeze.com.au/forums/Windsurfing/Foiling/Distance-from-Foil-to-Mast-foot

Hello,

hope this will help, for super light wind I use my Falcon 148 2011 with slingshot hover glide I76 and I84 and S-type 7,8.
I am 73-74kg for 1,82m, for the falcon I did not move my footstrap compare to normal windsurf, the front footstrap is at the second hole from the front. for pumping and take off my rear foot is generally in between the tow foil bolt head that give a nice pivot point
for the I76 I used C position that mean the most forward and mast base was originally at 109cm as specify in foiling academy this position is good with small sail.
after I try 107cm as Wyatt Miller explain in his video. This position is clearly better and allow me to get a nice flight but I can see that the nose of the board is pointing a bit done and I will try COREAS dimension at 104cm as soon as I can get back on the water.
For the I84 I got only one try and it was in C position with the rear wing 48cm, I have to move my rear foot behind the rear foil bolt to initiate the take off. During the flight the board nose was pointing done and the sail was falling backward. playing with the leach tension did improve the sail equilibrium but definitely next time I will move mast base back between 100 and 104cm.

Thanks al for posting your experiences.

Thanks segler a lot for your years of experience. It makes sense I think. But the leading edge of my foil is on 112,5 cm from the absloute minimum mastbase position. 44,24 inch. It goes up from there. The footstraps I will check later .

So if I want to sail a 6.5 i have to replace my mast rail ?

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WhiteofHeart said..

JoSpeed said..
Hello, I have an old Ftype 138 and a select F1 Foil with a 90 cm fuselage. I measured the distance between the mast base and the first finbolt, that's 115 cm. I saw on a youtube vid a person who told the distance between mast and fin should be 85 cm ?

Depends a lot on your type of riding. Generally, with bigger sails and race fuselages you can ride further forward, with an average 90cm fuselage its really dependent on your sailsize. For wavesails you want to ride the mastfoot a lot further back, for if you rake the sail backward it loses power. You want to have the sail upright at all times, hance the rearward mastfoot position recommended by Balz. He's also chasing maximum pop, looseness in the carves and planing power with the minimal sized sail. Your foil is on the more powerful end of the spectrum for a 90cm I believe, so a little further forward than your mates is normal, but we're talking about 2-3cm.

I've only seen 2 foils which require a mastfoot position of around the 115 mark, and those are the Lokefoil Race PWA and the Phantom R. Even the starboard race 115+ fuselage can be sailed further back than that. your fuselage is a lot less powerful than all of those. Generally: If you're riding 8.5 and up 108-112 is the right place for most foils. For a 7.0 I'd advise somehwhere around the 105-108 mark, for smaller I'd advise further back, although 85cm is an extreme, think more around 100 for a 5, 97 for a 4.

Normally I'd advise to move the straps forward and your mastfoot back, if you need 115 to keep the foil in the water you probably dont have your straps setup correctly. However, on a starboard like the F-Type the footstraps are already very far forward compared to prety much any nother board on the water, so try just moving the mastbase back and adjusting your technique, work incrementally. If you feel you cant do anything but bend your frontleg when going upwind (only upwind, all other directions its natural to have to bend the frontleg) and are no longer comfortable your mastfoot is too far back.

WhiteofHeart , my board is a cross over Fanatic Sky Sup/Foil/WS , the maximum adjustment from the front of the mast in back of the track to the maximum sail mast adustment in the track is 30 inches ,
I only used this board twice and I had a bronco ride , I'm used to a Wizard 150 , so from your experience : how should I adjust this board ? Such a small distance from the two masts . I have a 710 and 900 fuselage .
I bought this board mainly for windfoiling and beginning wingfoiling but may be this was a mistake since this looks more suitable for a wing in regard to the mast set up ?

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kiter49 said..

WhiteofHeart said..

JoSpeed said..
Hello, I have an old Ftype 138 and a select F1 Foil with a 90 cm fuselage. I measured the distance between the mast base and the first finbolt, that's 115 cm. I saw on a youtube vid a person who told the distance between mast and fin should be 85 cm ?

Depends a lot on your type of riding. Generally, with bigger sails and race fuselages you can ride further forward, with an average 90cm fuselage its really dependent on your sailsize. For wavesails you want to ride the mastfoot a lot further back, for if you rake the sail backward it loses power. You want to have the sail upright at all times, hance the rearward mastfoot position recommended by Balz. He's also chasing maximum pop, looseness in the carves and planing power with the minimal sized sail. Your foil is on the more powerful end of the spectrum for a 90cm I believe, so a little further forward than your mates is normal, but we're talking about 2-3cm.

I've only seen 2 foils which require a mastfoot position of around the 115 mark, and those are the Lokefoil Race PWA and the Phantom R. Even the starboard race 115+ fuselage can be sailed further back than that. your fuselage is a lot less powerful than all of those. Generally: If you're riding 8.5 and up 108-112 is the right place for most foils. For a 7.0 I'd advise somehwhere around the 105-108 mark, for smaller I'd advise further back, although 85cm is an extreme, think more around 100 for a 5, 97 for a 4.

Normally I'd advise to move the straps forward and your mastfoot back, if you need 115 to keep the foil in the water you probably dont have your straps setup correctly. However, on a starboard like the F-Type the footstraps are already very far forward compared to prety much any nother board on the water, so try just moving the mastbase back and adjusting your technique, work incrementally. If you feel you cant do anything but bend your frontleg when going upwind (only upwind, all other directions its natural to have to bend the frontleg) and are no longer comfortable your mastfoot is too far back.

WhiteofHeart , my board is a cross over Fanatic Sky Sup/Foil/WS , the maximum adjustment from the front of the mast in back of the track to the maximum sail mast adustment in the track is 30 inches ,
I only used this board twice and I had a bronco ride , I'm used to a Wizard 150 , so from your experience : how should I adjust this board ? Such a small distance from the two masts . I have a 710 and 900 fuselage .
I bought this board mainly for windfoiling and beginning wingfoiling but may be this was a mistake since this looks more suitable for a wing in regard to the mast set up ?

I think your board will work best with a wing / sup / surf fuselage. Do you have footstraps? Of so, put the mastfoot 100cm from the front screw of the backstrap and start from there, with the short fuselage. I think the long fuselage is too powerful for your board, although the Fanatics tracks for the foil are quite far back compared to some competing brands.

Select to expand quote

WhiteofHeart said..

kiter49 said..

WhiteofHeart said..

JoSpeed said..
Hello, I have an old Ftype 138 and a select F1 Foil with a 90 cm fuselage. I measured the distance between the mast base and the first finbolt, that's 115 cm. I saw on a youtube vid a person who told the distance between mast and fin should be 85 cm ?

Depends a lot on your type of riding. Generally, with bigger sails and race fuselages you can ride further forward, with an average 90cm fuselage its really dependent on your sailsize. For wavesails you want to ride the mastfoot a lot further back, for if you rake the sail backward it loses power. You want to have the sail upright at all times, hance the rearward mastfoot position recommended by Balz. He's also chasing maximum pop, looseness in the carves and planing power with the minimal sized sail. Your foil is on the more powerful end of the spectrum for a 90cm I believe, so a little further forward than your mates is normal, but we're talking about 2-3cm.

I've only seen 2 foils which require a mastfoot position of around the 115 mark, and those are the Lokefoil Race PWA and the Phantom R. Even the starboard race 115+ fuselage can be sailed further back than that. your fuselage is a lot less powerful than all of those. Generally: If you're riding 8.5 and up 108-112 is the right place for most foils. For a 7.0 I'd advise somehwhere around the 105-108 mark, for smaller I'd advise further back, although 85cm is an extreme, think more around 100 for a 5, 97 for a 4.

Normally I'd advise to move the straps forward and your mastfoot back, if you need 115 to keep the foil in the water you probably dont have your straps setup correctly. However, on a starboard like the F-Type the footstraps are already very far forward compared to prety much any nother board on the water, so try just moving the mastbase back and adjusting your technique, work incrementally. If you feel you cant do anything but bend your frontleg when going upwind (only upwind, all other directions its natural to have to bend the frontleg) and are no longer comfortable your mastfoot is too far back.

WhiteofHeart , my board is a cross over Fanatic Sky Sup/Foil/WS , the maximum adjustment from the front of the mast in back of the track to the maximum sail mast adustment in the track is 30 inches ,
I only used this board twice and I had a bronco ride , I'm used to a Wizard 150 , so from your experience : how should I adjust this board ? Such a small distance from the two masts . I have a 710 and 900 fuselage .
I bought this board mainly for windfoiling and beginning wingfoiling but may be this was a mistake since this looks more suitable for a wing in regard to the mast set up ?

I think your board will work best with a wing / sup / surf fuselage. Do you have footstraps? Of so, put the mastfoot 100cm from the front screw of the backstrap and start from there, with the short fuselage. I think the long fuselage is too powerful for your board, although the Fanatics tracks for the foil are quite far back compared to some competing brands.

Thanks for your tips WhiteofHeart ,
The furthest back front screw of the backstrap to the front of the mastfoot track is 79cm , so I will start this way . I have a surf fuselage 710 cm so I will use this one with the foil mast at the back of the track . This way the front of the mast is 2cm in front of the front screw of the back strap .