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Old 25th June 2007, 04:51 AM   #11
Terje
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Default RE: Am I right about the mast foot position all the way back on an F-type?

Hi all,

Very interesting info from your tuning of the FT148.

I have a FT 138 that I ride with a 8.4 + 52cm stock fin (rider = 68kg)
The mast foot is located in the middle of the box.

With this setting, the board is going up wind very easily, too much I would say, as I have great difficulties to make it going downwind.
When going down wind the nose of the board is low and is frequently catching some chops. I am in a very instable position, strongly pull forward and in a fear to be catapulted.
I tried to move the mast foot all the way backward ==>I was doing lost of spinout, with my front foot intending to extit the strap. Not so ggod.

Which setting would you recommand to adjust ?

Thanks,

Terje
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Old 25th June 2007, 05:15 AM   #12
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Default RE: Am I right about the mast foot position all the way back on an F-type?

If you feel like you have to push the rig towards the nose to keep from going upwind chances are you lines are too far forward (sometimes your front foot wants to exit the straps??) (-> lines further back, helps you going downwind as well).
FT138 MF all the way back, boom chin high.
BTW fear of getting catapulted == good, just make sure it doesn't happen.
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Old 25th June 2007, 10:47 AM   #13
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Default RE: Am I right about the mast foot position all the way back on an F-type?

Quote:
Guest wrote:
If you feel like you have to push the rig towards the nose to keep from going upwind chances are you lines are too far forward (sometimes your front foot wants to exit the straps??) (-> lines further back, helps you going downwind as well).
FT138 MF all the way back, boom chin high.
BTW fear of getting catapulted == good, just make sure it doesn't happen.
I tend to agree. I am 65kg and have stopped putting my mast foot forward at all. I always leave it as far back as possible. If the board takes off, I'm getting better at controlling this situation ... I can push the rail down by leaning forward and putting weight on the front foot. Even when I lean forward, though, I am primarily putting weight on my back foot. This is because I tend to sail with a larger fin to be sure I can get through the lulls.
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Old 25th June 2007, 07:09 PM   #14
Terje
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Default RE: Am I right about the mast foot position all the way back on an F-type?

Quote:
Guest wrote:
FT138 MF all the way back, boom chin high.
I tried the mast foot all the way back : my front foot was going out of the strap. But it was quite windy for the 8,4 sail, and my line were maybe to forward.
I will experiment with the lines further back.

And concerning the strap position, what would you suggest ?
At the time, I still can move them backwards (one hole left behind).

Terje
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Old 28th June 2007, 12:55 AM   #15
kimax
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Default RE: Am I right about the mast foot position all the way back on an F-type?

2Terje: Longer harness lines makes it easier to go downwind, I've just tried it two days ago (I have adjustable). I was surprised how much more control I gained when making them longer in downwind sailing.
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Old 29th June 2007, 12:20 AM   #16
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Default RE: Am I right about the mast foot position all the way back on an F-type?

lines further back is of course only part of the equation, 28+ lines too
center of gravity to your advantage!
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Old 30th June 2007, 12:31 AM   #17
Terje
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Default RE: Am I right about the mast foot position all the way back on an F-type?

I tried new setting yesterday, during a cool session 10/14kts, 8,4m² on FT-138.
First I moved back the harness line --> the sail was more balanced in the upper range.
Then, I move back the straps (now on the latest hole) and the mast foot --> board seems to higher on the water, catching less chops and be globally quicker. Noticable improvement.
The only drawback may be an increase pressure on the back foot and a front foot that intend to exit the strap.
Maybe I have to change my position on the board to be more on the front foot.

Terje
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Old 30th June 2007, 01:48 AM   #18
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Default RE: Am I right about the mast foot position all the way back on an F-type?

- waist harness?? (YES!)
- harness lines 28++ (YES!)
- turn into the direction you want to surf
- lean forward
problem with a bit of exercise will go away by itself.

Get GPS to validate your "feelings" (sometimes its feels fast but is really slow)!
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Old 2nd July 2007, 03:42 AM   #19
Terje
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Default RE: Am I right about the mast foot position all the way back on an F-type?

I use :

- waist harness?? --> yes

- harness lines 28++ --> 22. And it seems long enought for me. I should try an adjustable set to be more at ease when going down wind

- turn into the direction you want to surf --> You mean turn the upper part of the body in where I want to go ?

- lean forward -->I try !

Terje
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