Salty Seacock

Emirates Team New Zealand.

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14 minutes ago, Salty Seacock said:

The pool of sailors ain't all weed sellers from Hamilton. 

Which guys sell the weed? Does Russell still get his weed from these guys?

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4 hours ago, Woolfy said:

I'm sure the likes of GA,JJ etc love being referred to as the backup team!:lol:

Glenn only has 17 world championships and has won 15 America's cup races.

There wouldn't be many people who can match either of those numbers.

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1 hour ago, Ex-yachtie said:

Hopefully more loyal. 

You would hope so. Money does funny things to people. 

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3 hours ago, Priscilla said:

Change the livery and paint it up in S&S colours nobody will notice. and call her, Stumpy.

FIFY.

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1 hour ago, NZL4EVER said:

Te kahu was just on the news. The hit a big fish and splashed down. Meanwhile Grant commented that S&S are hanging in there but funding issues need sorting. 

A visiting sun fish from, Australia?  ;-)

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6 hours ago, smackdaddy said:

Honestly Weta - I don't doubt she's a fast boat when under control. I'm just giving your mates a hard time. It's my hobby...and passion. Heh.

You should find a new hobby, one that is perhaps better use of your 'passion'. Who knows it might even end in marriage.

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2 hours ago, NZL4EVER said:

Te kahu was just on the news. The hit a big fish and splashed down. Meanwhile Grant commented that S&S are hanging in there but funding issues need sorting. 

That would be why they they towed in with the arms up.

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12 minutes ago, barfy said:

That would be why they they towed in with the arms up.

They carried on after the hit.

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Just now, kenergy said:

They carried on after the hit.

Really? Couldn't watch the vid unfortunately.

Hope the fish was ok

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It says they carried on foiling after the splash down in question.

EDIT: Beat me to it ...

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I was walking on Milford Beach and saw Te Kahu sailing out in the channel this afternoon and was lucky enough to be looking at her, albeit from approximately 3-4kms away when she splashed down. Even from that distance the splash was very impressive.

Immediately after the splashdown she took off down towards St Heliers and with Rangitoto as a backdrop, from where I was watching she travelled from north of the Rangitoto lighthouse the rest of the length of Rangitoto in under a minute or even less - the speed was super impressive.

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16 minutes ago, barfy said:

Really? Couldn't watch the vid unfortunately.

Hope the fish was ok

It tasted fine. 

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6 minutes ago, kenergy said:

It tasted fine. 

The fish was in 2 pieces.! Filleted instantly......

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4 hours ago, Woolfy said:

Be hilarious if it cleaned up

Maybe they should run an invitational team.

Get some Sail GP folks to experience a real boat hahaha

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Alright everyone.

4 Feb 2020, the day I was finally emotionally ready to re-watch the 35th Cup.

Still stressful even though we won it :lol:

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1 hour ago, Purple Headed Warrior said:

Budget is less than Valencia!? Surely that cannot be true?!

An accountant would describe that as window dressing :)

All kinds of ways to state things, perhaps they were counting costs-to-date, excluding the costs of being the defender, and including the expenses of setting up in Spain.  

 

Seems wishy but who knows. 

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Don't know why, but my personal fascination with handling these boats is in the crash stop manouvers. Last time was Ineos, who dropped foils in a hurry and blew the jib and sat head-to. The NZ response seemed to be just to drop foils and luff a bit, tough to tell if the jib was blown and the battens kept it looking normal or what.  

Te Kahu is one sweet looking boat, I find it visually cooler than the first round of big boats and hope it heralds what's to come in terms of the sail shape and absolute sleep foots of the sails.  My WAG speculation is that Ineos was on to something with the decks designed to match the sails. 

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2 hours ago, RMac said:

Don't know why, but my personal fascination with handling these boats is in the crash stop manouvers. Last time was Ineos, who dropped foils in a hurry and blew the jib and sat head-to. The NZ response seemed to be just to drop foils and luff a bit, tough to tell if the jib was blown and the battens kept it looking normal or what.  

Te Kahu is one sweet looking boat, I find it visually cooler than the first round of big boats and hope it heralds what's to come in terms of the sail shape and absolute sleep foots of the sails.  My WAG speculation is that Ineos was on to something with the decks designed to match the sails. 

Your wife and your girlfriend are speculating about AC75 designs? Colour me impressed!

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46 minutes ago, rh3000 said:

Your wife and your girlfriend are speculating about AC75 designs? Colour me impressed!

More impressive is that they seem to agree with one another. 

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51 minutes ago, rh3000 said:

Te Kahu is one sweet looking boat, I find it visually cooler than the first round of big boats and hope it heralds what's to come in terms of the sail shape and absolute sleep foots of the sails.  My WAG speculation is that Ineos was on to something with the decks designed to match the sails. 

Clarification required please.

Sleep foots.

Decks designed to match the sails.

Are the WAG’s concurrent ie existing, happening, or done at the same time.

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Some nice footage in that vid ^^. Around the 25sec mark you can see the camber adjustment in the main - they put some twist on then pull the traveler across to get a nice shape. Sail development looks well advanced.

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great footage,

looks to be continuous foil tip piercing the surface ehich doesn't seem to trouble them at all

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1:15 and 1:40. They fly with the foil on the edge of breaking the surface and dont crash when the foils break out.

Seems to be really fast and hull is low/close to the water.

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The last scene 1.31 onwards is the dolphin looks to be pointing super high.  Optical illusion??? or just awesome.

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1 hour ago, uflux said:

 

No sprit sure makes Te Aihe look very slick.

Will the others follow suit and consign the whomper to the bin.

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Amazing to see how rock-solid the foil arm waterlines are - the boat seems to sit almost perfectly on the second black line just below where the arm is wider.

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Sail World headlining a revealing video of Te Aihe with regards to a white jetstream coming from the starboard foil tip. They are using the video above and I think they mean Port Wing Tip?  Perhaps stating the obvious form of journalism as the need for AC news intensifies?? LOL

https://www.sail-world.com/news/226263/Americas-Cup-Revealing-video-of-ETNZs-AC75

 

 

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55 minutes ago, terrafirma said:

Sail World headlining a revealing video of Te Aihe with regards to a white jetstream coming from the starboard foil tip. They are using the video above and I think they mean Port Wing Tip?  Perhaps stating the obvious form of journalism as the need for AC news intensifies?? LOL

https://www.sail-world.com/news/226263/Americas-Cup-Revealing-video-of-ETNZs-AC75

 

 

Using Richard Gladwell and journalism in the same sentence isn't recommended...

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1 hour ago, NZL3481 said:

Using Richard Gladwell and journalism in the same sentence isn't recommended...

Shit, that’s a bit rough. If it wasn’t for him we’d have to rely on the shit that’s bounced around here (no offence @weta27) or, even worse, Tom Whatshisnsme. 

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4 hours ago, uflux said:

 

Damn, I love free style drone porn. Better if the pilot did some dives down the mast, maybe a hard spiral around the top. 

Damn. More tissues.

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1 hour ago, NZL3481 said:

Using Richard Gladwell and journalism in the same sentence isn't recommended...

What a stupid thing to say.

You can count the yachting journalists on one hand, so why would you criticize someone contributing useful commentary from the NZ / ETNZ perspective, let alone a guy who takes photos as well.

None so clever as those who sit on the sidelines. 

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And just to get some more clicks for sponsor, who is maxon to etnz? Cine gear?

Edit: read the article...I get it. There is also a 3d and cine crowd with that name.

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2 hours ago, barfy said:

And just to get some more clicks for sponsor, who is maxon to etnz? Cine gear?

Edit: read the article...I get it. There is also a 3d and cine crowd with that name.

I recall them being the supplier of the Actuators buried within the foils. Which would explain the placement of their logo and focus of the film on the foil and foil arms. But I might have that arse about face.....

Didn't they do an earlier video of the Actuators themselves? 

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Clearly no friends of Ports Of Auckland, that's some road trip to the alternative. @Priscilla a team after your own SSOH heart! :-)

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The video of the wrapped hull displays the boat's lines a lot more clearly than the disruptive artwork underneath.

Also exposed is an Interesting ventilation issue (I hope I got the arrow colour correct). It appears in a number of scenes.

Interesting.thumb.png.3553e86e6bab6d1d084fd27bf4d35a28.png

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5 hours ago, Priscilla said:

Will the others follow suit and consign the whomper to the bin.

Can't without a rule change.

I hope to see one though, these things were never going to really need the Code 0s if they foiled properly & they do foil properly -> will look much better without the prod.

 

Lots of interesting stuff in this vid.

Spamdaddy won't be impressed at the instability :rolleyes:

 

As RobG pointed out an extended period of ventilation/cavitation at the T intersection.

Doesn't appear to particularly slow them down but thats where the bulb should be keeping things tidy.

 

Before that there was some interesting shots of acceleration, must be a pretty nasty drag hump where the foil is being depressed so that pretty much the whole arm is sitting in the water making a heap of both form & wetted surface drag.

Must be even nastier on the flat-bottomed hulls.

 

Do TNZ need to do some work on the arm step/fence?

It looks to be immersed more than designed for a lot of the time, possibly rather draggy with big ventilation bubble coming off it.

 

Interesting tail-end with the tip having continuous tight ventilation vortex & the whole upper foil looking very close to the surface.

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6 hours ago, Priscilla said:

No sprit sure makes Te Aihe look very slick.

Will the others follow suit and consign the whomper to the bin.

Except the boat then becomes AC68

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1 hour ago, Tman said:

Any idea of the container ships name?.voyage schedule?

Could be Rio Madeira from Hamburg Sud company (definitely the red color is from an hamburg sud container ship).

Left Tauranga Harbour yesterday (the container cranes seems similar in size and color)

Marine Traffic Position RIO MADEIRA

 

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7 hours ago, barfy said:

Damn, I love free style drone porn. Better if the pilot did some dives down the mast, maybe a hard spiral around the top. 

Damn. More tissues.

That's definitely not a freestyle drone filming that. Footage is taken with a camera on a gimbal which freestyle drones don't have. Possibly a dji inspire if they needed the extra speed but otherwise could have been a Mavic or a Phantom or some other pro camera drone. It is good footage of the boat though. Like you said a freestyle pilot would have been diving the mast and flying between the hull and the foils for those perspectives you can't get with other drones.

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5 hours ago, RobG said:

The video of the wrapped hull displays the boat's lines a lot more clearly than the disruptive artwork underneath.

Also exposed is an Interesting ventilation issue (I hope I got the arrow colour correct). It appears in a number of scenes.

Interesting.thumb.png.3553e86e6bab6d1d084fd27bf4d35a28.png

I wouldn't exactly call that an issue. Ventilation is to be expected where you are pointing at. Mitigating it, is an issue. I'm no aerodynamacist but I'm pretty sure fences would help and act as a sort of barrier. 

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19 hours ago, Ex-yachtie said:

More impressive is that they seem to agree with one another. 

Yeah, you gotta find an issue you can agree on before you get to the difficult topics. 

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1 hour ago, Raptorsailor said:

I'm no aerodynamacist but I'm pretty sure fences would help and act as a sort of barrier. 

Quite the opposite, they might create another area of low pressure and generate ventilation on their own (effectively extending the ventilation area)... That was one of the critics about the bulb, there is more risk to generate ventilation than without, but ventilation area might be easier to control. Longer chord is also increasing the risk.

It seems quite local and not affect the performance too much though (same with the tip near the surface). The boat stays pretty steady during the video at least.

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8 hours ago, hoom said:

-------

As RobG pointed out an extended period of ventilation/cavitation at the T intersection.

Doesn't appear to particularly slow them down but thats where the bulb should be keeping things tidy.

 

------

 

Do TNZ need to do some work on the arm step/fence?

It looks to be immersed more than designed for a lot of the time, possibly rather draggy with big ventilation bubble coming off it.

 

--------

That's not coming off the 'T' though - so a bulb isn't gonna help.

I agree the sheeting off the foil arm varied hugely depending on whether one or more stripes was showing. 

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13 hours ago, barfy said:

Damn, I love free style drone porn. Better if the pilot did some dives down the mast, maybe a hard spiral around the top. 

Damn. More tissues.

image.png.3a6dc6ac5a78894cf6b79b11d722efa1.png

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17 hours ago, hoom said:

Interesting tail-end with the tip having continuous tight ventilation vortex & the whole upper foil looking very close to the surface.

That looks like the port anhedral foil. To get the tip that close to the surface and have the arm immersed up to the grey section means a cant of around 25°, which gives the potential for a massive force to windward, about double that available at 15°. It highlights that these boats are now every bit as much about active trimming of the foil (pitch/AoA, cant and flaps) as trimming the sails.

With big cant on the arm, a bow–down attitude can cause it to generate downforce, which is somewhat counter productive.

I wonder if they're using AI to develop the parameters, maybe the crashes were part of teaching it where the limits are. :-)

1684458984_3Anhedraltipvortex.png.0a343aa77b6d8e165950ab45c5efaf96.png

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13 hours ago, JustinL42 said:

That's definitely not a freestyle drone filming that. Footage is taken with a camera on a gimbal which freestyle drones don't have. Possibly a dji inspire if they needed the extra speed but otherwise could have been a Mavic or a Phantom or some other pro camera drone. It is good footage of the boat though. Like you said a freestyle pilot would have been diving the mast and flying between the hull and the foils for those perspectives you can't get with other drones.

Yup, I was kinda joking...I've heard tell of their drone, it sure ain't dji. Octi I believe, Does 50kt, launch and retrieve from chase boat doing 20kt. I do love the drone footage we're getting now tho, the Xmas video from the ocean race was exemplary. I'm a racer, I just love smashing gates and the odd victory loop :rolleyes:

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8 hours ago, nav said:

That's not coming off the 'T' though - so a bulb isn't gonna help.

I agree the sheeting off the foil arm varied hugely depending on whether one or more stripes was showing. 

It looks like the ventilation in that photo with the yellow arrow is occurring directly at the Y where the foils meet the arm.

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The yellow arrow points to the fence halfway up the black section of the arm IMHO.

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13 minutes ago, The_Alchemist said:

It looks like the ventilation in that photo with the yellow arrow is occurring directly at the Y where the foils meet the arm.

Just a shit phone screen cap, but I see a tip vortex, and a sheen of vapour coming from the entire outboard wing.

And it doesn't crash, or slump noticeably. Maybe the first signs of a super cavitating foil using tip ventilation to induce the cavitation. :P

Screenshot_20200206-154614_Chrome.jpg

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Why would you want to induce cavitation.  Cavitation only makes the foil stall.

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1 hour ago, trt131 said:

Why would you want to induce cavitation.  Cavitation only makes the foil stall.

An alternative to the supercavitating propeller is the surface piercing, or ventilated propeller. These propellers are designed to intentionally leave the water and entrain atmospheric air to fill the void, which means that the resulting gas layer on the forward face of the propeller blade consists of air instead of water vapour. Less energy is thus used, and the surface-piercing propeller generally enjoys lower drag than the supercavitating principle. The surface-piercing propeller also has wedge-shaped blades, and propellers may be designed that can operate in both supercavitating and surface-piercing mode.

Supercavitating propellers were developed to usefulness for very fast military vessels by Vosper & Company.

Wiki

 

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3 hours ago, barfy said:

Just a shit phone screen cap, but I see a tip vortex, and a sheen of vapour coming from the entire outboard wing.

And it doesn't crash, or slump noticeably. Maybe the first signs of a super cavitating foil using tip ventilation to induce the cavitation. :P

 

I was talking about this pic.  It looks like it is coming from the Y joint area.

image.png.7917e52ec6aea3eee35caf46cbc53b07.png
image.thumb.jpeg.76419772f721f422cb7c605cfb8c2736.jpeg

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image.png.5111004bdeebad08ccbc00de60a75548.png

looks like its been happening for a while ... this is from a mid-December release from etnz

would be interested to see similar film of the other boats from this angle

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32 minutes ago, Lickindip said:

image.png.5111004bdeebad08ccbc00de60a75548.png

looks like its been happening for a while ... this is from a mid-December release from etnz

would be interested to see similar film of the other boats from this angle

If only they were doing some sailing....

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Wow Supercavitating foils, we are stepping forward towards new high speeds and VMG.

With a soft reefable (with our AC rules) wing.  What an amazing thing this AC is.

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12 hours ago, barfy said:

Supercavitating propellers were developed to usefulness for very fast military vessels by Vosper & Company.

Crikey Barf you may have cracked it.
Any mention of propellers in the AC75 rules.

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Don't mention UptiP , or there will be trouble at mill.

Screen Shot 2020-02-07 at 7.23.33 AM.png

Screen Shot 2020-02-07 at 7.24.02 AM.png

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12 hours ago, The_Alchemist said:

I was talking about this pic.  It looks like it is coming from the Y joint area.

image.png.7917e52ec6aea3eee35caf46cbc53b07.png
image.thumb.jpeg.76419772f721f422cb7c605cfb8c2736.jpeg

Yep, fair enough....

 

11 hours ago, Lickindip said:

image.png.5111004bdeebad08ccbc00de60a75548.png

That's a nice stamp ^ you've found there ;)

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1 minute ago, nav said:

Yep, fair enough....

 

That's a nice stamp ^ you've found there ;)

Who the hell uses stamps anymore?

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I find it quite humorous that some are so quick to say the ventilation or cavitation on the foils don’t appear to have any effect on the performance!

Physics dictates that ventilation and cavitation (except possibly super cavitation) reduces performance,  whether it is enough to be a problem with the trade offs vs VMG, etc, is only know by the engineers analyzing the data.  We have only small video clips and no data, no information, etc...   You can bet NZ has been working to try and eliminate any ventilation or cavitation.

It is just like when the hull is skipping across the surface of the water.  The touchdowns may have less drag than another design, but you can bet they want to eliminate as many touchdowns as possible vs the trade off of flying too high.

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1 hour ago, Kiwing said:

Wow Supercavitating foils, we are stepping forward towards new high speeds and VMG.

With a soft reefable (with our AC rules) wing.  What an amazing thing this AC is.

Don’t underestimate them, they have discovered anti-gravity levitation and only need the foils for steering.

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Because I'm a sucker for punishment

usa seems to have lower rez video's so difficult to pic it up

image.png.2f7ca8e9a57b73820b4cee38182766c2.png

Very High and almost breaking though

image.png.312912f4f2a0f3bb552a84b8bcd03682.png

UK was more difficult to pick up, maybe because of the white foils or the fact it just wasn't happening as much.

 

image.png.800b6e8b4c7f20e1013242ba9d52aac4.png

 

LR are just being too sneeky

image.png

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3 hours ago, Priscilla said:

Crikey Barf you may have cracked it.
Any mention of propellers in the AC75 rules.

Wide open I reckon. Just the bit on energy sources...

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21 hours ago, barfy said:

Yup, I was kinda joking...I've heard tell of their drone, it sure ain't dji. Octi I believe, Does 50kt, launch and retrieve from chase boat doing 20kt. I do love the drone footage we're getting now tho, the Xmas video from the ocean race was exemplary. I'm a racer, I just love smashing gates and the odd victory loop :rolleyes:

Awesome. Wasn't sure if you flew or not. Glad to see a fellow quad pilot in here. It would be super cool to rip the boat while it's sailing!

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1 hour ago, uflux said:

That article seems a couple of month out of date :huh:

The source is an article and podcast from Yachting World dated 9 Jan (both referenced in the article). May be news to some.

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1 hour ago, uflux said:

That article seems a couple of month out of date :huh:

 

is it march already? the year is flying by!

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On 2/5/2020 at 6:28 PM, barfy said:

And just to get some more clicks for sponsor, who is maxon to etnz? Cine gear?

Edit: read the article...I get it. There is also a 3d and cine crowd with that name.

DC motors used throughout their control system.

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On 2/5/2020 at 6:27 PM, weta27 said:

What a stupid thing to say.

You can count the yachting journalists on one hand, so why would you criticize someone contributing useful commentary from the NZ / ETNZ perspective, let alone a guy who takes photos as well.

None so clever as those who sit on the sidelines. 

2021 America's Cup: Richard Gladwell - Leading designer warns it's when, not if, teams will capsize AC75 foiling monohulls

Hiding behind Granny Heralds paywall.

Boats will capsize shock horror pay up and Gladwell will reveal the identity of Einsteins descendant designer.

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1 hour ago, Priscilla said:

Hiding behind Granny Heralds paywall

use "firefox" and "pocket "

save to pocket .. read the article .. no pics though

doesn't work on all paywalls

works on enough to make it useful though

and way easy than "inspect element ".. "delete node ". "delete node ". "delete node "

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On 2/5/2020 at 12:33 PM, terrafirma said:

Sail World headlining a revealing video of Te Aihe with regards to a white jetstream coming from the starboard foil tip. They are using the video above and I think they mean Port Wing Tip?

The article has been corrected.

On 2/5/2020 at 1:30 PM, NZL3481 said:

Using Richard Gladwell and journalism in the same sentence isn't recommended...

Why are you criticising Gladwell? He's given credit for one of the photos, the article byline is "Maxon/Sail-World.com/NZ".

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1 hour ago, Priscilla said:

Boats will capsize shock horror pay up and Gladwell will reveal the identity of Einsteins descendant designer.

its quite an interesting article .. goes against what many here have been saying

well worth the read

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6 hours ago, uflux said:

That article seems a couple of month out of date :huh:

 

Certainly fuck all new in it, that's for sure. Maybe, he's been reading SAAC.

Pretty weak excuse for Ben having his arse handed to him by the Italians, I reckon.

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