Search the Community
Showing results for tags 'nacra'.
Found 9 results
-
World Sailing Championship (Denmark) Rule 69 case in the foiling NACRA class, Iker Martinez will have a hearing 8/8 for illegal change(s) to the boat. Looks pretty serious to me.
-
Perfect, may build one myself.
-
Nacra 5.0 - Likely The Last Video Before The Lake Freezes
leeboweffect posted a topic in Multihull Anarchy
Nacra 5.0 - Likely The Last Video Before The Lake Freezes -
A wee bit of hot dog'n in 10-15kts. Enjoy... https://www.youtube.com/watch?v=nWlPFKzIxTA
-
Highlights from last Sunday. Enjoy...
-
Anyone sail beach cats in the Columbia River near Portland / Vancouver
ricwoz posted a topic in Multihull Anarchy
Finally got some vacation and took a day trip to Timberline Lodge to see Mt. Hood, then down the back way to Hood River. The wind was up and the kites were out! I haven't been there for a while, and it's gotten really huge. They have a bunch of ramps and a few people were doing spins off them, which was exciting. I didn't see one traditional sailboard out there. It seems like (at least at Hood River) the conversion is complete and everyone is doing the kites. Only one dinghy Enjoyed the drive back downriver to home, where there were the usual small number of sailboats out on the Columbia around the Interstate and Glenn Jackson bridges. I don't think I've yet seen any beach cats out there though. I know that there are some dinghy sailors going out on Vancouver Lake and on the Willamette, but the paddle boats seem to predominate for small craft. Does anyone day sail beachcats or other small multi-hulls in the Columbia? I know the currents are an issue, sometimes hitting 5 knots. Still, it eems a shame to leave all the wind to the kites. Is there a club or beach where people keep their boats, in the way that we used the beach in Santa Cruz for summer beachcat storage? -
The NACRA 17 and even the NACRA 15 have gone to foiling technology, but those are one-designs. Of course the A Cats have had it for a while and did a lot of the experimentation and development for foiling beach cats, so there is a precedent for an existing box-rule class to permit the use of foils. Will the F18 or F16 classes be adopting foiling technology? Or, will they be denying it to keep the large numbers of existing boats competitive? If they choose not to go there will we eventually see a new box-rule beachcat formula that is close in size to the 18, which remains popular for larger crews? Would adopting foiling effectively split the F18 class into two halves, the pre-foiling and post-foiling boats, and hurt people with older boats like Tigers that still want to race them? Just wondering what people who know more about this (like active F18 or F16 racers) think. How does the NACRA 17 do with heavier crews? The stated optimum crew weight (from sailing.org for the Mixed Multihull class) is just over 300lbs. 400lb crew seems like what F18 (and above) are built for.
-
The Nacra 5.0 mainsail has a 5 hole adjustable clew plate as it is a boomless rig. Hook the mainsheet system to the front hole and you pull more on the foot than the leech reducing draft and power for higher wind conditions. Hook the mainsheet system to the back hole and you pull more on the leech than the foot increasing draft and power for light wind conditions. With the adjustable clew plate concept it is my understanding that no matter what hole you hang the mainsheet system from (even the back hole) the mainsheet system should be angled forward, bottom to top. Said another way, the back clew plate hole should between the mainsheet traveler track and the mast such that you are always pulling, at least slightly, on the foot. I have recently encountered a sail where this is not the case. The back clew plate hole is astern (in back of) the mainsheet traveler track even with the mast straight up (no rake). This means that you would pulling no tension at all on the foot and in fact be compressing the bottom batten, when close hauled. I don't think this is correct and would like to check it. If some of you would be so kind please check the dimensions A and B shown in the pic below and post your findings here. Please also note the loft that made your sail and it's approximate age. A: the dimension from the clew plate middle hole to the back hole (center to center). B: the dimension from the back of the mast luff track to the center of the middle clew plate hole, basically with your sail up hook a tape over the front edge of the batten cap and measure to the center of the middle hole. Further I welcome any comments relative to boomless rigs on other boats and whether the clew plate location arrangement I have outlined above is correct.
-
Finally broke down and bought an action cam for my boat. This is my first attempt at shooting and editing. The prototype mount is a little jiggly at times, but most of the footage is pretty clear. Thought some of you might get a kick out of this. Yes, I know I need more downhaul. The 33 year old bagged out main has seen it's better days, but......... Tom Kirkman on here has shot many videos and shared his experience with me as to video editing, setups, mounts etc.. The "off the shelf" mount offerings looked too cumbersome, bulky and in the way so I decided to design my own. My design goals were cheap, easy to mount, no pole (so as to not obstruct the view) and maintain the horizon. I was convinced at the onset that a spring to maintain constant tension for gimbal control/stability was necessary. Experience with the setup has shown the spring to be the source of the undesirable jigglys. There is A LOT more vibration (both frequency and amplitude) in the standing rigging than I would have ever guessed. I'm designing the spring out of the setup. Below is a photo of the first prototype on the boat.
