Another chance to run the 650/105+ today. Had the 9.0 IQFoil sail but the mast snapped while pumping after my first jibe...swam back and rigged a 7.5 gator and was able to get it going with some effort. There's a guy here that's 30-40lbs lighter than me that was running the 725 front wing, 105+ fuse but on a 6.0 foilglide. He was getting going a little easier than me.

Anyway, it felt really good on the 7.5 honestly, better than I expected. More like windsurfing. Felt really automatic on height control compared to the 900/115+. There's a bunch of things I think I need to adjust stance-wise I think, but a solid little session of it, and I feel more comfortable pushing it on an rdm vs. the sdm masts. No big speed records today yet.

I suspect with a 9 meter sail, you would achieve higher speeds with a foil slightly bigger than 650.
Perhaps a 750 or even 850.
Huge jump down to 7.5, but you need to be willing to stop and re-tune for the conditions. It's a blind leap of faith to expect a 7.5 will be perfectly tuned after jumping down from a 9.
If you're the slightest bit underpowered with 7.5, loosen outhaul. Even maybe 3/8th. " downhaul.

..or shorten harness lines..

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LeeD said..
I suspect with a 9 meter sail, you would achieve higher speeds with a foil slightly bigger than 650.
Perhaps a 750 or even 850.
Huge jump down to 7.5, but you need to be willing to stop and re-tune for the conditions. It's a blind leap of faith to expect a 7.5 will be perfectly tuned after jumping down from a 9.
If you're the slightest bit underpowered with 7.5, loosen outhaul. Even maybe 3/8th. " downhaul.

Maybe, not clear yet. I do think the 725 is likely a good light wind slalom for the 9.0, 9.0 may be a little bit big for the 650. At least from guessing from what Phantom shows for comparable wings. The guy on the 725 also runs the 650 wing, says the 725 is definitely easier in light stuff, but also runs the 7.0 fg2 (6.0 yesterday). He looked pretty good, been sailing a lot longer than I have. One other time I was on 900/115+/9.0 and he was on 800/105+/7.0 and we were getting up at similar times but also he has a huge weight advantage of about 40lbs or so in those light conditions. Still I also think he's got more efficient technique than me.

In this case I set at recommended outhaul and downhaul. Could have loosened the downhaul maybe 1cm max and maybe 1-2 on outhaul to really bag it but I think it would've gotten backhanded in the gusts.

Off topic slightly but WTF is the deal with the Severne masts??? Cal snapped one on the beach while rigging. You've broken this one doing a normal sailing move and I know two others who've broken theirs. Meanwhile there are people on twenty year old SDM Fiberspar to say nothing of newer Nolimitz or Slake or old Gulftech.

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Awalkspoiled said..
Off topic slightly but WTF is the deal with the Severne masts??? Cal snapped one on the beach while rigging. You've broken this one doing a normal sailing move and I know two others who've broken theirs. Meanwhile there are people on twenty year old SDM Fiberspar to say nothing of newer Nolimitz or Slake or old Gulftech.

Not sure. That was #2 for me. I've been talking with the racers here and everyone has broken multiple masts. I am very careful with my boom clamp pressure as well, to the point where it slips some when I uphaul. If I take it off the board and am not using it I remove the downhaul to keep heat from killing it, or just bag it up.

I've kicked around the idea of getting a training MDM or something more reliable and only using the SDM for race events but haven't committed. My sail is also really needing pro repairs after ~80-90 sessions so to really compete I'll need another. Too many desires at the moment so personally I haven't narrowed down what exactly I want to do. Riding the 650/105+ combo with a smaller rdm sail seems like a lot of fun in the right conditions without the drama of 900/115+/9.0 but of course it's not as performant.

If I go out far from now on by myself I'm just going to rig an rdm sail/mast for some cushion. I still have lots of room for improvement with stance and technique that can be sorted out on non-olympic setups.

If your race sail has a dark colored sleeve, WET it before final downhaul and keep it wet when it's on shore.

Think of slalom.
When 7.8 down to 7, a 69 cm wide board is good for 72 kg riders.
But with 7 down to 6 meters, a 62 cm board is faster around the course.
Then, 6 meters to 4.8, a 58 cm board is fastest and most efficient around the course.

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LeeD said..
Think of slalom.
When 7.8 down to 7, a 69 cm wide board is good for 72 kg riders.
But with 7 down to 6 meters, a 62 cm board is faster around the course.
Then, 6 meters to 4.8, a 58 cm board is fastest and most efficient around the course.

what does any of this even remotely have to do with the topic...?!

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LeeD said..
If your race sail has a dark colored sleeve, WET it before final downhaul and keep it wet when it's on shore.

pretty clear from the description of the circumstances of the breakage that it has nothing whatsoever to do with heat...

Bel29...sorry...
Slalom board width has EVERYTHING to do with foil size for 9 meter sail.
If you cannot figure that out, maybe try sailing for a few decades more, and then you might.

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LeeD said..
Bel29...sorry...
Slalom board width has EVERYTHING to do with foil size for 9 meter sail.
If you cannot figure that out, maybe try sailing for a few decades more, and then you might.

have you even sailed on recent high performance slalom foil kit?!

Bel29...sorry again
One mast broken on shore.
One mast broken on 2nd run.
2 others broke, but we don't know circumstances.
Multiples broken, we don't know circumstances.
Does this sound like history of N.... masts?
If you refuse to learn from history, you will repeat what already happenned.

Bel29...
History tells us that any rig that bends the heck out of the mast will be susceptible to mast breakage.
This proved out in the '80's, the '90's, the mid 2000's, and the mid '10's.
Should we learn anything from that, or should we stick our head in the sand?

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LeeD said..
Bel29...
History tells us that any rig that bends the heck out of the mast will be susceptible to mast breakage.
This proved out in the '80's, the '90's, the mid 2000's, and the mid '10's.
Should we learn anything from that, or should we stick our head in the sand?

lol sure, masts have broken in the past, and will continue to break in the future. the issue is a bit more specific though.

Yeah my masts broke once during pumping after my first jibe of the day after being cold. Other one while flying and actually caused a foil crash.

Racers break these all the time. I think Severne optimized for performance not durability for IQFoil because I don't know anyone with an adult IQ that hasn't broken 2+.

You are still blind to history.
History tells us each of those problematic break problems were mostly isolated to ONE model of sail. That ONE sail model had more mast bend than sails of other companies, and more mast bend than other models of the same company.

But enough on that, since you refuse to apply history to modern problems.

I have a 9,0 NP 4 cam Foil racer and an Ezzy Hydra 8.1.
In performance the NP blows the Ezzy out of the water.
But sailing with the Ezzy from 8-14 knots is really nice. So light and yet enough power and speed.

With the 9.0 you can fly 2 knots earlier but only 2 times because pumping the 9.0 is hard :)
It is much harder to rig, requires much more power to sail, up hauling it is a nightmare and durability is poor compared to the Ezzy.

The Ezzy rigs in 2 seconds without needing a winch. 460 mast instead of a 550..... Super light.
Much easier to carry on the beach. I can uphaul with 2 fingers.
I have to admit 9 out of 10 times I go for the Ezzy in the light wind days.

For performance I wait for 15 knots+ and rig a 6,3 slalom sail with the small wing and 81cm board. For 12-15 knots I use an Ezzy 7.0.
I am busy to replace the 6.3. + 7.0 for a Phantom X 6.6 that should cover 12-20 knots with 2 wings.If you don't compete I would figure out something light for 8-15 knots. 2 or 3 cam in 8.0 is really enough with a big wing if you are under 100kg. Combine it with a 6.0 foil sail and you are covered. (All with high aspect foil wings)

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LeeD said..
But enough on that, since you refuse to apply history to modern problems.

so many assumptions... but just so you know I was amongst those racing on NP piling up the broken X9s in my RS4s. but that's maybe too recent history for you?!

Dude, old history.
We're at Severne mast breakage now.
Any windy day during the season, there are 4 Severne race foil sails being rigged next to me.
Maybe they're visible?
The IQ boys swing by several times a year and talk mast breakage.
You know 5 year history, but forget to recall specific company mast breakage problems thru the years.

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LeeD said..
Dude, old history.
We're at Severne mast breakage now.
Any windy day during the season, there are 4 Severne race foil sails being rigged next to me.
Maybe they're visible?
The IQ boys swing by several times a year and talk mast breakage.
You know 5 year history, but forget to recall specific company mast breakage problems thru the years.

Haha-you're the one who brought up history not me. And math doesn't seem to be your forte either.

Absolutely not.. I never EVER took a book home with me after 8th grade. Sometimes I had notes in back pocket....
But I have experience.
I went thru the longboard to shortboard evolution as a shaper.
I started motocross when 4" front and 3" rear suspension was norm until 12.5" Fox fork cartridges and 13" mo oshock was std in AMA expert motocross.
I started windsurf when Rocket 99 was state of the art, National Team Gaastra rider by '86, but more important, worked at the biggest windsurf shop in Calif from '85-00.
So I know a bit about breakages, ya think?

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LeeD said..
Absolutely not.. I never EVER took a book home with me after 8th grade. Sometimes I had notes in back pocket....
But I have experience.
I went thru the longboard to shortboard evolution as a shaper.
I started motocross when 4" front and 3" rear suspension was norm until 12.5" Fox fork cartridges and 13" mo oshock was std in AMA expert motocross.
I started windsurf when Rocket 99 was state of the art, National Team Gaastra rider by '86, but more important, worked at the biggest windsurf shop in Calif from '85-00.
So I know a bit about breakages, ya think?

Here we go again - enlightening us newbies with your bio for the umpteenth time

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LeeD said..

So I know a bit about breakages, ya think?

No doubt then that the iQ Foil fleet in the Bay appreciates you reminding them not to leave their rigs lying in the sun :D

Kids don't listen to adults, they know it all already.

Azmutt..
Benefit for Bel29, not you. You already know everything.
He's relatively new.

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LeeD said..

He's relatively new.

assumptions, again.

Assumption....you are a fool who is BLIND to history.
Fact...you refuse to allow the past to be part of the present.

Fact....when using a 650 front wing, a 9.0 sail is usually not ideal.
Fact.....maybe something smaller approaches "ideal".