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Showing content with the highest reputation on 01/08/2019 in all areas

  1. 5 points
    Ha ha - you get worse. The "Blue Book" as you call it is the "Australian Sailing Racing Rules of Sailing". In the current version (I own a copy) it clearly states that "Other words and terms are used in the ordinarily understood in nautical or general use". The Sailing Instructions (SIs) are part of the rules of the event and have nothing to do with IRPCAS (what you call the ColRegs). The IRPCAS requirements for AIS DO NOT apply to a sailing yacht of the weight of Wild Oats XI. That sentence in the introduction of the "Blue Book" applies across all elements of the rules of our sport unless,like ALL aspects of the RRS, is specifically countermanded by a part of the NoR or SIs -you may have seen in some things like "This replaces Rule such and such. The 2018 RSHYR NoR and SIs have no such entry that even suggests the normal usage understanding of words is incorrect. Cutting a long story short SHALL means SHALL but of course,as an experienced rules 'person' you would know that anyway. You mention in an earlier post that being old doesn't mean being wise. It is important (perhaps also wise) to understand that true wisdom doesn't come from what you know. IN fact true wisdom comes from knowing what you don't know. (Think about it). Your comment about an IJ coming up with a guilty verdict is irrelevant in this case as there was no guilt (or innocence) decided in the protest room as the protest was deemed invalid. Not the judges fault but the way in which the protest was prepared. Nobody has won. Wild Oats has not been proven guilty(f they were). They have not had the opportunity to prove their innocence (if they were) The reputation of the race and our sport has been besmirched. The Overall Victory of Alive has been largely buried which is not in the least bit fair. Hers was a rare Hobart based boat's victory. The achievements of the ladies on Wild Oats X, newsworthy in itself has barely had a mention. On a much brighter note for our sport, the 2019 Fastnet Race entry has opened and closed. It took a mere 4 minutes and 37 seconds to fill the 340 places available in the Royal Ocean Racing Club's biennial event. Just sayin' SS Edit: PS there are another 100 boats on the wait list by the way.
  2. 3 points
  3. 3 points
    [grin] is this about the great lakes puny waves, or about the lack of lighthouse structural survey and maintenance ? [\grin]
  4. 2 points
    Gerry Hutchins at Com-Pac Yachts once told me that he could have retired years ago if he could have figured out how to manufacture used boats.
  5. 2 points
    Where did you get Huff Po? If you have random shit just popping into your head for no reason, talk to the doc and maybe he'll cut your dosage. Otherwise, you've missed the point. But that's okay. I understand. You're a fucking moron. So I'll hold your hand: Look at the photo again. It's Trump. He and his family are part of the Elite. He's from New York. New York is on the coast, as in Coastal. I've bolded and underlined the important words. Read them in reverse order. I'm not going to arrange them for you because I want you to do at least part of this on your own to give you a sense of worth. Now the tough part: You need to go back to your first post and draw the relevance. Let me know if you need help.
  6. 2 points
    Mikey thinks cats are pets. Thats just stupid. Cats put up with humans. They are not domesticated animals. If they are outside their "owners" property, eradication is the only proper course of action.
  7. 2 points
    I already live in New Zealand. That'll do me. About to leave Auckland for Northland. Mortgage free, bit of money invested (not much by many standards) but it's all mine. 3 acres of native bush with a 4 year old 3 bedroom house with big garage. Native birdsong , mainly tui during the day, morepork (owls if you must) and kiwi during the night. Hoping life becomes working because I don't mind it - otherwise see you at the beach. Was there the other day. Holiday period. Must have been at least 8 cars in the car park. 60 in September. The Missus found a full time teaching job in 4 days doing just what she was looking for so she's happy. Can't quite swing it this season but look for me on the slopes in Colorado next winter
  8. 2 points
    Went retro.... Picked up 2 old big volume sailboards....Mistral One Design 2000 and an older Tyronsea 370. Grabbed a mixed bag of second hand masts, booms and sails cheap. Gave GF one set up for xmas and cannot keep her from the water on them. Went sailing cheap and easy. GF practising in the pool on the old but simple slalom board picked up as well.
  9. 2 points
  10. 2 points
    I figured in here it was a given. The only one not getting it would be The Jamster.
  11. 2 points
    When I think about it, I've already retired to a waterfront property on an island in a 3rd World place. Bonus, the locals mostly speak English. FKT
  12. 2 points
    I can assure you wing designers are very much interested in slot effects. On the C-cat the slot on the wing was very tightly controlled and tuned. In fact getting the slot right was one of the first things we learned with alpha when we went for a friendly regatta with Steve Clark in 2006. First few days, we were doing fine if not better than fine uphill but as soon as we took off downhill, Cogito was killing us with depth and speed. We went low to a certain point and then bam, it would all stall. Late one night we put the tape measure up to Steve's wing and his idlers (The device that controlled slot on the wings at the time) and lo and behold, we found we were out by say 1/2- 3/4" on some idlers. So that night we cut up pool noodle and beefed up our idlers to help close down our slot more. Next morning, we were right in the game downhill and it was a whole new day. Ultimately we converted to a more complex / sophisticated string system to control slot. It became kind of set and forget once the wing was assembled and sailed once. We even built a nice little calibration tool for each wing that set precisely, down to the millimeter, what each slot setting should be moving up the wing. In short, slot is EVERYTHING on a sail plan. It's job is to energize the field at the surface of the foil and help keep flowing air stuck to the foil longer. As such you can bend more air and get more power. Overlapping or not doesn't matter actually that much, simply think of them as two fields interacting closely together, fore and aft overlap is not a big factor, lateral distance is a much bigger deal to performance, e.g. how open your slot is. Plus don't think of it as a main and a jib, its just a sail plan, they act as one unit together when it comes to breeze.
  13. 2 points
    This is all a storm in a teacup. The rule is shit. It should have read something along the lines of "on passing 20N the vessel shall loiter in the area before again passing South to North across 20N after 18 hours have passed, and within 40NM of the original point". This would allow the competitor to tack back and forth across the line as JL was doing and result in exactly the same time penalty without requiring such precise navigation.
  14. 2 points
    Actually, there is a fundamental relationship between lift/drag ratio and sailing performance. The basic sailing performance equation is: Vb = boat speed Vt = true wind speed gamma = course to true wind (0 = straight upwind) beta = apparent wind angle, measured between apparent wind and course through the water Vb = Vt*sin(gamma - beta)/sin(beta) Vmg = Vt*sin(gamma - beta)*cos(gamma)/sin(beta) This comes directly from applying the law of sines to the wind triangle, and is exact for all sailing craft when the terms are defined as above. It turns out that the apparent wind angle, beta, is the sum of the aerodynamic and hydrodynamic drag angles: lift = force component at right angles to the apparent wind or course through the water drag = force component parallel to the apparent wind or course through the water ea = arctan(aero_drag/aero_lift) eh = arctan(hydro_drag/hydro_lift) beta = ea + eh At any point of sail (gamma), you want to minimize the apparent wind angle (beta), and this leads to maximizing the aero and hydro lift/drag ratios. Maximizing the force comes into it when it improves the hydro lift/drag ratio. For example, a boat that sails dead downwind has a hydrodynamic lift/drag ratio of zero. So heading up to get more side force improves the hydro lift/drag ratio and speeds the boat up. Likewise, operating the rig at angles of attack past maximum aero lift/drag ratio can improve performance when the additional hydrodynamic lift results in a better hydro lift/drag ratio. Very high performance craft (such as landyachts, iceboats, and foilers) approach the ideal of the "constant beta boat", in which the apparent wind angle is constant for all points of sail, and the lift/drag ratios are also constant. If you assume a constant apparent wind angle, you'll find best Vmg occurs near 45 deg and 135 deg to the true wind, and maximum speed near a beam reach. So there are good reasons why we tend to sail at approximately those angles. And it's all about lift/drag ratios.
  15. 1 point
    I am with you Dreade. I was checking on the 5 year old high end house we bought as some wiring in the kitchen was hokey and I no longer trusted the circuits. Stupid bastards had no GFCI on the hot tub, or any sockets in the kitchen or one of the bath rooms. Was running a 15 amp circular saw on the deck last weekend. Turned on a shop vac to catch the saw dust and tripped the breakers. Had 15 am power circuits instead of 20 in a modern house. Love to find the MFer... But it could be worse. Small town I lived in as a kid always made the worst trademan the building inspector, as he could not ding anyone else's work. The electrician was the building inspector. They had to take the job away after the 3rd new house he wired burned to the ground from electrical shorts. As for stereo, in the 80s we used to buy midfi components and then hotrod them to a point they would blow away the high end stuff. Stereos are child's play compared to 20 million dollar mainframes and it gave the electrical engineers a past-time. Replace all resistors and capacitors with computer grade parts and then blue print them to match the schematics perfectly. pour concrete in the bottom of CD players to get rid of any vibration. custom build DA convertors so we could do double, triple or quadruple sampling. on speakers to be used on rugs, we would drill small holes in the stand legs and use finish nails with the heads cut off in the holes. The legs never touched the carpet as the nails were putting all the weight onto the sheathing. Really sharpened up the sound. Remember showing off to my 15 yo nephew one afternoon. Cranked the system up to show how clear the sound was under power. All the sudden the drywall seams let go behind the system before the seams in the ceiling let go. Nephew thought it was cool, but I was just thinking of all the work it was going to be to fix the walls due to my showing off. Dumb ass I am... And I notice nobody mentioning their green markers for CDs.... ;<) :<) The problem today is the .mp3 files are so compressed they sound like shit no matter what gear you are listening with. Get a CD of an 80s album and get a mp3 version of the same song (has to be older music as new songs are mixed for mp3). Start each and click back and forth between input sources in a dark room so you ears are really paying attention. MP3 is good for ear buds, table top battery operated speakers and that's all... Glad to see vinyl coming back. My daughter likes it so I pick up a classic album for her on special occasions. Amazes me how well some of these albums sound considered they were recorded on 60s and 70s technology.
  16. 1 point
    Not sure how you acertained that but if so doesn't that in fact make it less, not more likely? Firstly the camera pack has less power than the helicopter relay back to Channel HQ? If a camera uplink is that powerful to fry onboard electronics how are a helicopters electronics imune from that? How in fact have so many broadcasts been done without a onboard electronics incident of this nature? Secondly you would assume the microwave access to the splitter would be via the mast mounted antenna then VHF coaxial cable as the VHF cable and splitter are encapsulated in carbon. Therefore isn't that mast top antenna access point more susceptible to the operator in the helicopter getting his higher powered relay device direction cocked up, not the camera operator with his low powered device? Thirdly you appear to be using no other boats effected so can't be helicopter approach? It happened 2 hours before the start and they were at Bradley's Head with no other boats around. Don't know why they were live transmitting 1 1/2 hours before the telecast started, but that is beside the point. I don't know the exact power involved for each device and I don't know how one channel and half of the other channel in a splitter survive a roasting leaving only AIS TX impaired, but the helicopter relay being the culprit sounds quite plausible to me. PS. Actually the irony of all this is everyone complains about only the big boats on the TV coverage. The problem is with these two boats two onboard cameraman broadcast approach they utilise two helicopters which takes resources away from covering anyone else. Get rid of the onboard cameraman and people might see other boats exist. Or alternatively Channel 7 charters more choppers.
  17. 1 point
    No I don't... I pulled it off the internet when looking up a pic for some mountain lions... adorable little critters.... arn't they? We need a few of them around here to deal with the coyotes we have running around thinning out the domestic feline herd.
  18. 1 point
    Oh the vision.....wonder if he plays a little Wagner to get inspired.
  19. 1 point
  20. 1 point
    5508 is my current dream boat! But, sadly, out of my price range. Schionnings are dope. Not too many under $500k and a long way to go for a seatrial, though. They pop up from time to time this part of the world, though. Lots use balsa which is a deal breaker for me. I've seen too much wet balsa. It's like wet cardboard.
  21. 1 point
    Sadly true. We had a Peterson 30 IOR Half back in the day too but never raced it offshore. I remember the guys who delivered her Syd-Melb (Bob Judd iirc?) in January 76 telling my Dad to keep her on Port Phillip. Very rare to see 30 fter entries in longer races these days, compliance and other related costs have gone beyond the reach of Joe average. Talking with the Gunrunner (Jarkan 925) dudes on the dock in Hobart last week, they are Army funded so not too much out of their own pockets and they do it as much for the overall adventure as for the sailing. Good on 'em, I reckon that is an outstanding use of taxpayer funds!
  22. 1 point
  23. 1 point
    I discovered the same thing when I was playing with a simple landyacht VPP. I had arranged it so the angle of attack for maximum aerodynamic L/D was below maximum lift. But I discovered the best performance was with an angle of attack higher than best aero L/D. It took me a while to realize that because the side force on the chassis was dependent on the side force applied from the rig, that the L/D of the rig and the L/D of the chassis were not independent. By loading up the chassis more, it improved the L/D of the chassis and gained performance even at the expense of the aerodynamic L/D. So while you're right that you can't purely optimize the L/D of the rig independently from the boat, it's still the place to start. Drag reduction always yields a performance gain. Increasing the lift may improve performance, but not necessarily. It depends on how much the drag increases, both aerodynamically and hydrodynamically, as the lift is increased. OTUSA sailed their AC72 with a daggerboard lifting pole that acted like a slat, which allowed the windward daggerboard shaft to have attached flow. The aerodynamic thrust from the daggerboard offset most of the drag from the entire windward hull. However, the increased side force increased the drag on the leeward daggerboard, and the slat-shaped lifting pole on the leeward hull had more windage than a round pole. The drag from daggerboard and leeward pole negated the gains from the windward pole and daggerboard, and the aerodynamic lifting pole was scrapped. When adding lift, you really can't say much about the effect on performance unless you have a VPP that considers all the interactions. Dave Hubbard did an interesting analysis when Oracle Racing was sizing the soft sail rig for the trimaran, USA 17. There were no limits on the rig design, so it all came down to the fundamentals. Hubbard showed that there was an optimum rig size for each wind strength. If the rig were too high or the sail area too large, the lift had to be reduced to stay within the righting moment available, and the parasite drag was higher than need be. If the rig were too short, then the induced drag was increased and performance suffered. So there was an optimum area and height for each wind strength. It turned out that the best aspect ratio was remarkably similar across the wind range. It looked like the entire rig was just scaled up and down for different wind strengths. Just what the optimum aspect ratio was depended on the righting moment, windage, and the resistance of the hull. If the double-luff sail is to have an aerodynamic advantage over a rigid wingsail, I believe it's going to be the ability to vary the size according to the wind strength. It's not going to have an edge on maximum lift or control of camber and twist. Of course, the rationale for the double-luff sail may not be aerodynamic at all. It could be all about logistics. Or fashion.
  24. 1 point
    Yes, it indicates they should probably read Citizens United prior to attempting to overturn it. Specifically, The thing is, corporations like Citizens United and the NAACP are not for-profit corporations. CNN is a for-profit corporation and recently asserted its first amendment rights in court. I pointed it out. No one seemed to see anything wrong about it, let alone anything requiring an amendment.
  25. 1 point
    Brexit was a knee jerk reaction by a group of ' watch us show them fellas over there whats what' . I'm going to guess thousands had NO idea the ramifications of the yes vote. easy yachting is the least of the problems

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