Heel Angle vs. Leeway -- Calculation. Heel Angle vs. Leeway -- Calculation Knowing how much leeway you're making is typically information you want to know in order to have an accurate calculation of true wind. You need to know true wind for different purposes, including knowing the exact direction of true wind so you can accurately measure VMG to windward. You need that in order to sail upwind optimally -- maximizing VMG to windward. I was hoping to be able to directly measure leeway using the new Airmar transducer, but that proved to be unobtanium, so now I will have to calculate it. 1. 2. This will be a tedious process as the measurements will need to be taken in different conditions and different angles of heel, and with sails perfectly trimmed everytime.
This, however: Suggests that merely subtracting leeway from AWA will lead to huge errors as there is another factor -- upwash (updraft). So how do we deal with this? What is Ideal Snubber Size? - Practical Sailor. Past articles and our recently published e-book on anchoring prompted a wide variety of questions from readers regarding anchor snubber length, material, and diameter. To answer these questions, I’ve sought to create a simple formula for determining the correct sizing and material. The formula is not meant to be definitive, but part of ongoing work. Practical Sailor welcomes more input on this topic. An anchor snubber reduces loads on the anchor and boat by adding elasticity to the rode.
There is a wide range of pre-made snubbers available at chandleries or online, and there is an even greater variety in use. Short snubbers: For our purposes, a short snubber is one that is less than one-quarter of the boat length. Long snubbers: Long snubbers of 20 feet or more allow for more stretch. The on-the-water testing took place on a 32-foot catamaran (windage roughly equivalent to a 40-foot monohull). Another question I sought to answer was how frequently the snubber should be replaced. How to wire a bilge pump | ON-OFF bilge switch | New Wire Marine. This method of by-passing your battery switch and switch panel makes certain that your float switch will turn on your bilge pump if it ever begins to fill up with water. If you ever leave your boat at the dock, this could keep your boat from sinking if you forget to turn your “auto” switch on, or even if you have your battery switch OFF.
The reason typically cited to NOT connect devices straight to the battery is that a trickle current (like from a GPS, or VHF) could drain it. BUT, there is little to no risk of this when a device (like a bilge pump) is connected with a physical disconnect switch (like a float switch). Furthermore, even if you trailer your boat how do you compare: The risk of draining a battery because you left the plug in and the bilge pump had to pump rain water out all nightWith the risk that you decide to unexpectedly leave your boat at a friend’s dock for the weekend and return to find it swamped? I think I messed up! Angela, Very difficult question to answer. It would be very helpful to say something about what you intend to purchase. I glean you were expecting to buy a 10 year old boat for $250,000. And assuming that boat new would have cost $500,000 to $600,000. Cat or mono? 35’ish, 45’ish, 50’ish?
Do you have a short list? All that said, we have an old steel boat, 44’ center cockpit. But that includes yard fees, hauling, all in. And we are live aboard which is harder on a boat. Probably the best resource for this question is Beth Leonards book. Iridium & Inmarsat Satellite Phones with Backup & Support - MailASail Roam-Free Communications. Advice requested re: navigation apps. Quickly (has been discussed in other threads)... Here in British Columbia: - Navionics missing some official tide and current stations, many very important: e.g., no "Malibu Rapids"; no Yacultas (no "Gillard" & "Dent" ... WTF!) - other tide/current oddities: Navionics thinks Northern BC is on "Alaska Daylight time" (Winter and Summer)... they've been informed, long ago - in so many places here in BC, Navionics "Sonar Charts" are based on fantasy (interpolated, not real data) - Navionics chart updates are not clear: I (personally) do not like not knowing specifically which charts and when they were updated, and so do not like depending on Navionics to update at whatever schedule they decide upon.
Having said the above, I still keep my Android Navionics current. It offers another source of info. Editable Wiring Diagram to share? Best software I have found for simple wiring schemes is AlleyCAD freeware as long as you don't want electrical symbols. Next one up is LibreCAD which is open source and will do almost anything. Does have a higher learning curve but not ash high as AutoCAD and of course is free. I could end you some of my wiring diagrams in AlleyCAD if you PM me an email address but not sure how useful that would be. All boats are different and I have a distributed panel design with 3 FLA batteries. I also work on a wiring booklet with one page for each panel. IE Core systems and charging, nav panel, pumps and machinery, cabin services etc.
Need some help understanding differences... Re: Need some help understanding differences... Angela, If you want to get a start understanding why Amel/Shannon/Hylas/H-R boats all cost a LOT more than Beneteau/Jeaneau/Hanse/Hunter you can start with this recent post here: A comparison from a very old, video on the interior construction of an Amel... I am sure a few minutes of youtube searching will uncover more factory tours. All boats are built to a "price point. " Sometimes that construction quality comes out in other ways. As boats age, the shortcuts in construction become more obvious, driving down the prices of older, cheaply built boats while the higher quality boats value tends to stay high because of significant demand for a quality product that is in limited supply.
Collision While at Anchor. 1) Start engines on both vessels so as to be prepared to aid in holding position or maneuver, be sure to position transmission into neutral. Maintain constant awareness of the position of rodes and evaluate the potential for tangling with propellers, if uncertain whether the rodes are not well clear of the propellers do NOT engage the drive shaft into propulsive mode. 1a) Deploy bumpers to mitigate contact damage, with exercise of caution as to potential of endangerment of persons. Keep feet, legs, hands and arms away from pinch points. 2) Play out rode of vessel that is dragging their anchor to allow the vessel to move past the vessel it has drag into; or if the vessel that has dragged down has stabilized its position [i.e., is no longer drifting] then play out the rode of the vessel that was drifted into.
Immediate goals being to first separate the boats if one can do so safely. Prioritize immediate safety of persons over mitigation of instantaneous contact damage to the vessels. How much snubber / bridle is too much? Warning - possibly only for nerds... I have heard a number of folks advise against having too much snubber / bridle whilst anchoring, and starting with my analysis at I have now put some thoughts together.
Interested in feedback and comments: - I guess the origin of this warning is to avoid doing some kind of horizontal bungee jumping at anchor, when the energy starts oscillating between kinetic energy of the vessel and the energy stored in the chain / snubber / bridle. - So, sufficient inelastic damping is paramount, where energy gets dissipated, leading to the infamous 'boiling of the ocean'. But then it struck me that there is another factor to take into account, which I believe most folks are not aware of. The point is that when the vessel gets pushed downwind further away from the anchor, like in a gust or swell, some energy gets transferred from wind to vessel.
Consequently, this is an effect one would want to minimise. Thoughts? Water reserves during passages; emergency desalinators. Re: Water reserves during passages; emergency desalinators. Our cat has a water tank in each hull. The watermaker feeds the port tank, we generally sail with the starboard tank empty. Before embarking on a long passage we make sure the starboard tank is clean and fill it with clean, good water. That is our reserve. We also have other liquid aboard suitable for hydration (and some that does dehydration ) and we have a water catching system that cost almost nothing (the hardtop over the cockpit) and can be quite productive in even a gentle rain (if/when it rains).
Then we have a little copper coil that can attach to the vent on the pressure cooker, it can actually be quite productive of distilled water so long as we have stove heat available. I can't really imagine starting out on a passage without enough water on board to make it to the other end, albeit at minimum rations. Large (3000w) inverter/charger cables size? Quote: I'm not sure what you mean by that. Most LFP batteries are rated at 1C discharge, and 250 amps is only about 0.9C for a 280ah bank. That would only give just over 1 hour of discharge time at that current, maybe a bit less if maintaining the LFP bank between 20% and 90% SOC.
And what do you mean by "Saturation voltage"? And why would LFP batteries cause a "firebomb" in the bilge? For the record, I don't even have any 120v loads on my boat currently, and I don't plan to in the future. For your Cruise | Sail Magazine. Cruisers who sail long distances typically carry a vast array of tools and spare parts, but weekend sailors tend to buy parts as needed and depend on tools normally kept at home, in the trunk of a car, or even hanging on the rack at a hardware store. But what happens when you take your boat out of home waters, with house, car, hardware store and chandlery left behind? This is a good question to ask yourself when you’re planning a vacation cruise. Good boat maintenance minimizes the potential for serious breakdowns, but assuming you will never have any problems flies in the face of reality. Things break, get blocked, corrode. Fortunately, an astonishing number of common repairs can be made with just five basic tools, which should be aboard every boat.
They are: 1) a 6in adjustable wrench; 2) slip-joint pliers of similar size; 3) needle-nose pliers; 4) a #2 Phillips-head screwdriver; 5) a 3/16in slot-head screwdriver. I always keep this basic kit in a canvas roll within easy reach on my boat. Download Whale Gulper 320 User Manual. Chart Navigation Secrets - Use the Magic of a Danger Bearing. Do you know the fastest way to pass a dangerous reef when sailing short handed? This little-known sailboat cruising technique needs to head the pack of "most reliable" navigation techniques--wherever in the world you choose to cruise.
If you shoot a bearing to the tank of 045 magnetic or more (higher), you are in safe water. If, at any time, the bearing becomes less than 045 magnetic, you are sailing into danger. Turn and sail for safe water now! See more below. Use danger bearings to keep in safe water when you enter an unfamiliar harbor during the day or night. 1. Study your navigation chart and find an object on the same side as the danger. 2. Draw a line from the charted object back out onto the water. 3. Use a protractor or plotter to find the bearing to the object. 4.
Write the magnetic bearing of the object on top of your danger bearing line. 5. As soon as you sight your object, start taking danger bearings. Adding a Storm Trysail to a In-Mast Furler. I'm considering doing the Annapolis to Newportrace in the spring (cruising class). The rules require I have a storm trysail.
I understand the best way to do this is to have a separate track on the mast for it. How do I go about adding one? If I just rivet the track to the mast won't the rivet ends stick out slightly inside the mast, which could tear up my in-mast furling main? If I can somehow add a track, what halyard would I use to raise the trysail? The main halyard is inside the mast. In reality, if the forecast is bad, or it builds beyond the forecast, I would be turning left into the Delaware Bay or New York City and dropping out of the race.
Networking the Old and New - Practical Sailor. Over the years, Practical Sailor has done many articles analyzing VHF radios, chart plotters, etc. This article will discuss how to get various brands of electronics that use different communication protocols to work together seamlessly. It is proven to work on my 39-year-old personal boat and parts of this process has been used on boats I have delivered for my customers. We have all stared longingly at the sales flyers that advertise the latest must have piece of electronics. But the idea of having one new piece of electronics that did not communicate with everything else made the purchase somewhat wasteful. With some careful planning, buying a new piece of electronics doesnt mean you have to scrap a few thousand dollars of equipment. Whatever piece of electronics you are looking at upgrading or adding, it is worth the time to look at all your electronics and how they communicate, or don't communicate.
Lets start with what electronics you might find on an older boat. Conclusion. Singlehanded full night sleep? Boat information folder for cruising - what to include? PLB Saves Solo Sailor. About NOT power setting the anchor. Where is Everything on the Boat? - Cruisers & Sailing Forums. Surgical Skin Stapler with 35 Wide Staples (medline) — Canadian Preparedness. Medical Kits for Offshore Cruising - Practical Sailor. Whale AK1550 Gulper® 220 Service Kit Replacement Parts: Amazon.ca: Sports & Outdoors. Difficulty checking Yanmar oil level - Cruisers & Sailing Forums. Care: Customer Assistance that's Always On | Cummins Inc. Purging fuel line from Racor to injectors (D2-40F) - Cruisers & Sailing Forums.
Selecting Line for Running Rigging. Guidelines for length of mooring lines, halyards and sheets. Adjusting Genoa Lead Cars | MAURIPRO Sailing. How to Pick an Anchor Rope Size, Type, Length and More – Anchoring.com. Jump Start Fail - Cruisers & Sailing Forums. Inbox (149) - skiplumley - Gmail. FenderFlex™ - DAN-FENDER. What, really, is a rogue wave? - Cruisers & Sailing Forums. ECHOMAX ACTIVE-XS RTE ACTIVE RADAR REFLECTOR X and S BAND RADAR | Datrex. Resources | Singlehanded Sailing Society. Singlehanded passage making, Best Practices - Cruisers & Sailing Forums. Sailing long distance, solo. - Cruisers & Sailing Forums. Singlehanded Sleep Schedule - Cruisers & Sailing Forums. Fifth question: Sailing alone, and sleep - Cruisers & Sailing Forums. The Ultimate Anchor Watch - BoatUS Magazine. Where to install an EPIRB? - Cruisers & Sailing Forums.
Jump Start Fail - Cruisers & Sailing Forums. Noakes canvas. Vmg Marine Services : Contact. Our Crew - Ocean Yacht Sales. Vmg Marine Services : About. Know Your Rudder - Sail Magazine. Do We Have Anchoring All Wrong? - Cruisers & Sailing Forums. Dropping vs lowering anchor - Cruisers & Sailing Forums. Advice for first time crossing an ocean - Cruisers & Sailing Forums. OCC Home Page. Adrift: Tami Oldham Ashcraft’s tale of surviving a hurricane at sea. Zincs over the side - Cruisers & Sailing Forums. World Cruising Club.
Salty Dawg Sailing Association | Realize Your Sailing Dreams. New York City to Tortola, BVIs in Nov/Dec 2020 - Cruisers & Sailing Forums. Upsizing the Fortress for spare anchor - Cruisers & Sailing Forums. Ten Easy Docking Tips for Sailing Season 2021. Most Popular Wind Generators. Home | weatherTAP. Mitigation Tactics for Various Issues. Dingy Chaps - How much or how men's hours to make. Hookah vs Scuba dive kit. Francis Fukuyama: How to Save Democracy From Technology. 3 Simple Drills to Improve Your Sailboat Handling Under Power - The Nautical Mind. Bonding to hull - Light and Heavy items - Cruisers & Sailing Forums. Number One Crew and Sailing Networking Site in North America. Jentronics | Home. Ease of finding crew as blue water cruisers? - Cruisers & Sailing Forums. Want to Sail Coastal or Offshore? Do... - Captain John's Skipper Tips. Which new RADARS work with OpenCPN - Cruisers & Sailing Forums.
Bottom Imaging for Sailboats - Cruisers & Sailing Forums. Beneteau Oceanis 45 The Yacht Share Design – Industrial Fabrics Association International. YB3i Tracker by PredictWind - PredictWind. Cruisers & Sailing Forums - Tags. Fuel Filtration – Once Again, For the Record. Want to Sail Outside of Sheltered Waters? Do This First... - skiplumley - Gmail. SD50 - water alarm advice. Seacock removal device without lifting the boat. VARIPROP Grease? - SailNet Community.