Electric Yacht
Electric Yacht
Why You Need Zincs on a Trawler Yacht
If you have owned your trawler yacht an adequate amount of time, you have had discussion on the docks about the topic of marine zincs for your boat, but what do they really do? How do they carry out their job?
When you have two different metals that are physically connected and lowered into sea water, they produce an electrical (dc) direct current. Current moves linking the two metals which can progressively corrode metals such as propeller shafts, submerged equipment and strainers in the engine room; everything that makes contact with the sea water.
The anode will be used to deliberately corrode away more rapidly than your other boat’s under water metal gear does.
At the top of the Galvanic Scale, Zinc is number 4, 1 being the most sacrificial to salt water, Aluminum is 12, Steel is 30, Brass is 51, 316 Stainless is 76 and pure Gold is 91. That is why zinc is preferred, we would like for it to corrode and preserve the other metal in contact with sea water.
Your trawler yacht’s zincs must be replaced when roughly 1/2 of the anode has been lost to decomposition. In a perfect world we want that to happen not more than one time a year but each trawler yacht is a bit different. I inspect my trawler yacht’s zincs often by diving below the boat and replacing those zincs that require it. When the trawler yacht is removed from the water, a new complete set is always installed.
Zincs are not all made in the same way. Demand MIL spec zincs. There is a company on my website Links page that I buy mine from. Unequaled zincs, at a very attractive price.
Props and Rudders
Propellers and prop shafts are routinely protected by a zinc collar bolted around the shaft. It is vital to ensure the shaft is clean and smooth prior to clamping the new zinc collar to it. You must have no bottom paint on the shaft at all.
Rudders and struts are also protected with zinc disks bolted directly to the metal. Be sure anti-foulant paint does not cover them now either.
Hull Plates
Hull plate zincs are mounted securely on the exterior of the hull and are used to bond the trawler yacht’s metals within the boat not out in the open to salt water.
Bonding is the linking as one the zinc plates bolted to the hull to other metals by wires. All of the submerged running gear and the metal in the engine compartment are linked to these plates. Be confident you check the bonding between thru-hulls and other metal gear by the use of a electrical ohm-meter .
Hull plates are as a rule found underwater at the stern of the boat.
Tip: If you spot “green” bronze gear, the bonding has not been successful and corrosion is in progress. Inspect and re- institute the bonding system.
Raw Water Cooling
Engine heat exchangers and engine raw water cooling systems are also in danger. Most heat exchangers are provided with a number of zinc “pencils”. You will detect them under brass plugs. The pencil is unscrewed from the plug for exchange. In addition, your transmission and oil coolers will be fixed with pencil zincs too
If you have owned your trawler yacht an adequate amount of time, you have had discussion on the docks about the topic of marine zincs for your boat, but what do they really do? How do they carry out their job?
When you have two different metals that are physically connected and lowered into sea water, they produce an electrical (dc) direct current. Current moves linking the two metals which can progressively corrode metals such as propeller shafts, submerged equipment and strainers in the engine room; everything that makes contact with the sea water.
The favored way to check galvanic corrosion is to attach a section of metal called a sacrificial anode, and it is typically a zinc alloy. In reality, many of us refer to sacrificial anodes purely as zincs. By using zinc anodes on your trawler yacht you will look after it considerably. The anode will be used to deliberately corrode away more rapidly than your other boat’s under water metal gear does.
At the top of the Galvanic Scale, Zinc is number 4, 1 being the most sacrificial to salt water, Aluminum is 12, Steel is 30, Brass is 51, 316 Stainless is 76 and pure Gold is 91. That is why zinc is preferred, we would like for it to corrode and preserve the other metal in contact with sea water.
Your trawler yacht’s zincs must be replaced when roughly 1/2 of the anode has been lost to decomposition. In a perfect world we want that to happen not more than one time a year but each trawler yacht is a bit different. I inspect my trawler yacht’s zincs often by diving below the boat and replacing those zincs that require it. When the trawler yacht is removed from the water, a new complete set is always installed.
Zincs are not all made in the same way. Demand MIL spec zincs. There is a company on my website Links page that I buy mine from. Unequaled zincs, at a very attractive price.
Props and Rudders
Propellers and prop shafts are routinely protected by a zinc collar bolted around the shaft. It is vital to ensure the shaft is clean and smooth prior to clamping the new zinc collar to it. You must have no bottom paint on the shaft at all.
Rudders and struts are also protected with zinc disks bolted directly to the metal. Be sure anti-foulant paint does not cover them now either.
Hull Plates
Hull plate zincs are mounted securely on the exterior of the hull and are used to bond the trawler yacht’s metals within the boat not out in the open to salt water.
Bonding is the linking as one the zinc plates bolted to the hull to other metals by wires. All of the submerged running gear and the metal in the engine compartment are linked to these plates. Be confident you check the bonding between thru-hulls and other metal gear by the use of a electrical ohm-meter .
Hull plates are as a rule found underwater at the stern of the boat.
Tip: If you spot “green” bronze gear, the bonding has not been successful and corrosion is in progress. Inspect and re- institute the bonding system.
Raw Water Cooling
Engine heat exchangers and engine raw water cooling systems are also in danger. Most heat exchangers are provided with a number of zinc “pencils”. You will detect them under brass plugs. The pencil is unscrewed from the plug for exchange. In addition, your transmission and oil coolers will be fixed with pencil zincs too
About the Author
Mike Dickens, the author, is a boat owner and owner/Broker of Paradise Yachts.
Paradise Yachts is a Yacht Brokerage offering used yachts to customers worldwide.
Visit our website to view our selection of Used Trawlers, Used Motor Yachts, and Used Sailboats .
National and international sales. We ship Used Yachts and Boats worldwide. Located in Florida, USA. 904/556-9431
Electric Yacht – Seattle Boat Show 2010 part 1.m4v
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Rc Speed Boats
Rc Speed Boats
Low voltage relay switch (trigger under 2.5volts)?
I am trying to increase the voltage in an RC boat to produce more speed by using a relay to isolate the motor circuit. The voltage that comes from the original circuit is about 2.5 volts. Does a relay exist that can trigger at 2.5 volts or less?
what i’ve actually done is add another circuit into the boat, the weight isn’t too much, and whats happening is i want the 2.5 volt relay so that i can have the switch between the 2 different circuit, because i’m afraid that the receiver for the RC will short out with so much voltage, therefore i’m using the 2.5 from the original to run the RC part, but a relay added in there to switch the circuits and have the 9v battery i have added with the new 9V motors, (there are 2 separate motors for each propellor). The question was just if anyone knew of a 2.5 volts or lesser relay trigger because the lowest one i found was 5V at radio shack, and can’t seem to find any online less than 5Volts…..
The only sensible way to produce more speed is to increase the voltage, i.e use a bigger battery. The only other possibility is to review the motor, which might be running too low a revs/min for a given voltage. Your idea of a relay is a non-starter (it does nothing which the motor controller does not already do). cutekittenkyti’s idea of a transformer is also a non-starter, as transformers only work for AC voltages.
When you say the original circuit voltage is about 2.5 volts, it sounds as if you are using two rechargeable NiCd or NiMH cells. You will get an immediate benefit from adding a 3rd cell. or, if you are familiar with the handling and potential hazards of Li ion cells, from using a single Li ion cell instead (more expensive). Talk to your dealer.
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Rc Yacht Racing
Rc Yacht Racing
Extreme Action and Thrill at Boat Races
You must watch out some of boat races to have the idea of the real fun, action, and excitement that these races offer you. Boat races certainly are the races full of extremum action and excitement. Boat races are one of the most popular competitive water sports.
Generally organized on exotic lakes, rivers, oceans, or other bodies of water, boat races offer you nice opportunity to enjoy the scenic beauty of water bodies. You can mainly enjoy two types of boat races – individual boat races and team boat races. In individual boat races, single boaters take part in different categories of races, but in team boat races, teams of boaters participate in races. Boat races are classified according to the type of boats used in the races. Some of the common boat races include Drag boat races, Dragon boat races, Hydroplane races, Jet sprint boat races, Offshore powerboat races, Outrigger canoe races, Sport rowing races, Yacht races, Match races, Team races, and RC boat races.
Drag Boat Races let you enjoy the races of drag boats. The races usually take place between two drag boats over a straight quarter mile (1320 feet). Originated in China, Dragon Boat Races offer you spectacular action of racing dragon boats, which are very long and narrow human powered boats, decorated with Chinese dragon heads and tails. It’s really fun to watch teams of boaters participating in the dragon boat races. Traditionally, dragon boat races are organized to commemorate the death of Qu Yuan.
Hydroplane Races provide you the hot action of hydroplanes on lakes and rivers. Hydroplanes or Hydros, or Thunderboats are type of motorboats that are used exclusively for racing. Hydroplane Races are one of the most popular spectator sports in several countries. Jet Sprint Boat Races offer you the swift action of speed boats, which are powered by water jet propulsion rather than by conventional propellers. Offshore Powerboat Races let you enjoy the races of large, ocean-going powerboats, the boats propelled by an internal-combustion engine. These races are one of the most expensive and elite boat races, because of the extremely expensive boats and the costs of fuel involved in these races. It’s really great to watch outrigger canoes racing in outrigger canoe races. These boat races are very popular in Hawaii and Tahiti.
Sport rowing races are great to watch. These races offer you great action of sweep-oar boats that are propelled by the reaction forces on the oar blades as they are pushed against the water. You can watch a variety of sailboats used in yacht boat races. Sailboats are the boats propelled partly or entirely by sails. Team races are one of the popular forms of yacht races. Match races are regattas for two sailing boats, racing each other around a course.
RC boat races offer you real fun with radio controlled boats that are raced on water. RC boats are controlled remotely with radio control equipment fitted in boats. Sitting outside water, the participants race & control their boats with the help of hand-held transmitters and receivers within their boats.
So, if you looking to enjoy any of aforementioned boat races, you should hurry to grab your tickets for boat races at sea festival at Fantasy of Flight in Polk City, FL. You can buy the tickets for boat races online.
About the Author
Learn about excessive thirst in dogs and excessive drooling in dogs at the Dog Illness site.
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