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Messages - LM

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1
Ke Nalu / Ke Nalu Black Friday/Cyber Monday Sale!
« on: November 23, 2018, 05:50:57 PM »
50% off all Hydrofoils & Konihi Paddles. 20% off all other paddles (you have to use the discount code BFCM for the 20% off the paddles, the foils & Konihis are discounted directly on the website already). **Insider secret** the sale is supposed to be ONLY Friday & Monday but I'll keep Saturday & Sunday in the sale too.

So if your looking for a foil or paddle at a FANTASTIC price. Don't miss out!

2
Ke Nalu / Re: Ke Nalu Hydrofoil
« on: November 22, 2018, 10:26:24 PM »
You're the only brand pointing out that you're using a longer fuselage for stability.
Could you work out this point some more?
How does the length of the fuselage, resp. the total lenght of the foil wing to wing the stbility when flying.

In Windfoiling the fuselage length ís THE most discussed issue atm besides frontwing area since it is one of the main parts that defines a foils riding character.

Alex

I don't think we're the only brand, it seems I've heard it mentioned elsewhere.
Basically it's pitch sensitivity we're talking about. I think the fulcrum principle can help explain: This is kind of oversimplified but basically If you put a long lever on a fulcrum it'll be more stable than a short lever...or perhaps better; if you have a balancing board with a long board, it would be more stable (require less "balance" or less twitchy) than a shorter board. How it relates to the rest of the foil would have to do with overall wing size, etc. A longer fuselage would allow you more leverage over a larger wing than a shorter fuse. which would help toward pitch sensitivity.

3
Ke Nalu / Ke Nalu End of Summer Blow Out Sale!
« on: September 29, 2018, 02:58:37 AM »
In addition to below we also have other items at near give away prices (3-piece travel shafts $90-more than 50% off regular retail ($207) 3K Carbon Quick Clamp Adjustable shafts $80-more than 60% off ($217). If you're looking for something specific let me know (customerservice@kenalu.com) we have some other nick nacks I can let go cheap.

The discounts on the foils & Konihis are in place on the website. The above stuff is "Zoner" special so I'll have to send Paypal payment requests for this stuff. Feel free to contact me with any questions.

 

4
Ke Nalu / Re: Ke Nalu Labor Day Sale
« on: September 02, 2018, 12:17:04 AM »
This is a bit easier to see:


5
Random / Re: Throwing in the towel
« on: September 01, 2018, 11:20:43 PM »
I'm sorry to hear your retirement isn't on your terms but I'm confident you'll make the most of it.
Wishing you all the best Bob!

6
Ke Nalu / Re: Ke Nalu Labor Day Sale
« on: September 01, 2018, 01:36:37 AM »
That's kind if tiny. I think you can see the necessary stuff though

7
Ke Nalu / Ke Nalu Labor Day Sale
« on: September 01, 2018, 01:35:26 AM »
Make sure to use the promo codes at check out for the discounts


8
Foil SUP / Re: Slingshot Foils
« on: August 11, 2018, 07:01:59 AM »
As surfcowboy said they are sized more like the go foils now, seems like a pretty reasonable option.

That's a great chart! & appears to be much more accurate (especially considering the GF sizes, although a couple of them still seem a bit larger than what we calculated) than most other info. I've seen.

I don't mean to hijack the thread but since it appears we're not on your guys radar I wanted to list our sizes as well since our foil sizes are more geared for SUP/surf:

The Ke Nalu 'Iwa 580 wing has a surface area of 1084cm2, a wingspan of 58cm with an aspect ratio of 3.33

                  'Iwa 775- Surface are of 1496cm2, Wingspan 77.5cm, aspect ratio 4.14 (this is the "go to" size for most & has been getting great reviews)

                  970 (currently being tested, available soon)- Surface are of 1994cm2, Wingspan 97cm, aspect ratio 4.88 (this is a dedicated downwinder foil)

More info. on our website www.kenalu.com & please feel free to P.M. here or email through customerservice@kenalu.com with any questions.

Lane, the Naish foil designer says “All Naish Wing areas are measured in "Projected Area". Whilst actual surface area is useful for calculating parasitic drag and the like, it is projected are that will have the most importance to a ride”

Are your numbers projected, and do you know from measuring others, who is using projected and who is using surface area.

These charts could be worthless with this monkey wrench thrown in.

I'm 99% sure ours are also projected (they were sized by my 3D design guy). I know when we've attempted to look at others it's projected area we were looking at (& what we found with Naish foils is that we agreed with what they reported...not so much with others. Those that do report their sizing anyway) but honestly I have no idea what others are doing when measuring their own & it does make it confusing because everyone sizes seem to be all over the map. I agree with what you mentioned Nils had to say about the comparison between actual & projected. & also the fact that without everyone measuring the same way it does throw a wrench in the works.


9
Foil SUP / Re: Slingshot Foils
« on: August 11, 2018, 03:16:13 AM »
As surfcowboy said they are sized more like the go foils now, seems like a pretty reasonable option.

That's a great chart! & appears to be much more accurate (especially considering the GF sizes, although a couple of them still seem a bit larger than what we calculated) than most other info. I've seen.

I don't mean to hijack the thread but since it appears we're not on your guys radar I wanted to list our sizes as well since our foil sizes are more geared for SUP/surf:

The Ke Nalu 'Iwa 580 wing has a surface area of 1084cm2, a wingspan of 58cm with an aspect ratio of 3.33

                  'Iwa 775- Surface are of 1496cm2, Wingspan 77.5cm, aspect ratio 4.14 (this is the "go to" size for most & has been getting great reviews)

                  970 (currently being tested, available soon)- Surface are of 1994cm2, Wingspan 97cm, aspect ratio 4.88 (this is a dedicated downwinder foil)

More info. on our website www.kenalu.com & please feel free to P.M. here or email through customerservice@kenalu.com with any questions.

10
Foil SUP / Re: Go foil kai, Iwa, M200 kits with 29" mast now available
« on: August 11, 2018, 02:53:54 AM »
oh - forgot to mention that all those numbers are for bending stiffness.  Torsional stiffness matters too, and that'll go up by the cube of EITHER the chord or the camber increase.  And it only goes down linearly with length.  So it is possible that for torsion about the axis of the mast, the new masts are significantly stiffer.

Good point about the torsional stiffness, that's actually what I was referring to. My education is in aviation but I'm not an aeronautical engineer BUT I actually did have this exact conversation with an aeronautical engineer a couple of weeks ago & he explained that it's a common misconception that chord length affects stiffness. He showed me (with equations) why. I don't remember the exact details but I believed him, he's done design work for military drones, etc. & he's also owned a composites company for over 30 years so I figured he knew better than I. So I can't provide details & it's a topic difficult to find through Google searches but that's what I was told. We're currently trying to achieve more torsional stiffness with our masts & that's what lead to the conversation.

11
Foil SUP / Re: Go foil kai, Iwa, M200 kits with 29" mast now available
« on: August 10, 2018, 08:38:01 PM »
chord is the the measurement from the leading edge to the trailing edge. a longer chord should in theory mean a stiffer mast

Your definition is correct but longer chord doesn't necessarily do anything for stiffness. As an example, a longer piece of paper isn't stiffer than a shorter one but if you take the same piece of paper & roll it into a tube is a lot stiffer...perhaps not the best example but the camber along the cord has more to do with stiffness. Generally, more camber is stiffer than flat camber. If their mast has the same camber as before it won't be stiffer due to longer chord alone.

12
Ke Nalu / Re: Ke Nalu Hydrofoil
« on: August 10, 2018, 12:01:32 AM »
I've been hoping to hear some reviews from you guys. May people took advantage of the pre-order offer but I haven't heard much back from you guys yet. How's it going for you?

We have been getting some great reviews from elsewhere (some reviews below) but I was really hoping to hear from some of you:

"Wow your foil is such a fun foil to fly on. I have a ***** foil and have riden ####### and ^^^^^^ foils, am expecting to try out a friends ---------- foil and so far am really impressed by the KeNalu foil. From first impressions just holding it how light it is compared to the *****. To the solid construction and not feeling as flimsy as the #######. To flying and it not wiggling. Very impressed. Flies like a dream"

“On a wave, it lifts straight up, instead of wanting to pitch up as you go faster. You nailed the stabilizer angle. I liked the stabilizer in the forward position because it made the foil less stable and more willing to turn. With the stabilizer forward, it turned like a much smaller foil than it was, turning felt comparable to the ###### ###i. It really likes to sit at the top of the wave and ride it like birds ride slope lift. When riding like that, it felt super efficient. Airs also felt pretty good and landing back in the water was controllable. It is definitely in my top 3 foils…Overall, I and others who tried it absolutely loved riding it. The few people that rode it all commented on how smooth it was and how well it turned. It’s definitely one of my favorite foils. This would be my go to for small waves.”

From a kiter on a 580:

“It felt great at speed and going slow. It worked great! I powered my kite and within 10 feet I was on foil.  It turns great and I think the best option for people learning as well.  Most kite wings are small and not forgiving, the point of it for me is getting the surf feel.”

So far some great feedback but I want to hear from you guys.

13
SUP General / Re: HOT Chicks on Stand Up Paddle Boards!
« on: June 30, 2018, 11:37:35 AM »
I think this is on topic (nice paddle too  :) ). Happy Saturday!

14
Foil SUP / Re: Need/Want foil sup
« on: June 07, 2018, 11:59:00 PM »
Spoke w/my install guy today and he has a "Chinook'' box coming in next week for the mount. Gonna watch him do the install w/GoPro charged up. Fingers crossed everything goes well.

that's actually the data from my Rip Curl "SearchGPS" watch, and not a Trace. with your GoPro, the Trace is nice that it's able to link up to that somehow, and put your stats right on the video footage you're taking.
I knew that about the Trace/GoPro link. Pretty sure Beasho has that wired. I might do it....only after I learn the foil. I kinda don't even wanna setup the SS right away. Gonna need to concentrate on schoolin' the foil.

It's really easy & after watching somebody do it, it'll even be easier (Chinooks were always my box of choice). I used to use a router jig for fin boxes but you really don't even need one if you take your time (I quit using jigs because it was faster/easier without). Really the only concern is using a router. If you've done router work before, then no big deal. If not be careful, they spin fast & can do a lot of damage quickly. Make sure you turn off the router & let the bit completely stop before pulling the tool out of the whole...I'm passing this advise on because I almost learned this lesson the hard way. At that point I had installed probably thousands of fin boxes and had gotten a bit "over confident" & used to let the router spin down on the floor...until the one time I stepped around it & touched the arch side of my shoe on the bit. Scared the SHIT out of me! It was a very violent smack against my foot & pulling the router out of my shoe wasn't easy. I initially thought it had sunk into my foot but fortunately it was just my sock wrapped around the bit. It tore my sock from mid calf and had it all wrapped around the bit. I had the tiniest of scratch from where the bit touched my foot. Needless to say from that day forward I always let the tool wind down inside the hole before removing it. Don't want to scare you, it is easy, but be careful with the router.
   

15
Gear Talk / Re: review of the Ke Nalu (Pono Bill) paddle
« on: June 02, 2018, 03:51:57 AM »
Glad you're liking your Mana & good to see this thread get a little bump :)

I've really been happy with all the reviews the Mana has received over the past couple years & with it's performance in general. I'll never forget when I stuck it into the water for the first time, I knew it was something special & it hasn't disappointed.

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