Tagged: Electric Boats
Goolsky Vantex Challenger 1300BP (Flame) FS-GT2 2.4G Transmitter High Speed 60 km/h Electric RC Racing Boat
From its deceiving size to its distinctive trim, the Blackjack™ 24 catamaran is sure to leave the competition stupefied. With its powerful 2000Kv brushless motor, 30A ESC and precision servo, this catamaran leaves more expensive boats in your wake. Want to experience all catamaran boating can offer at full-throttle? Then look no further than the Blackjack™ 24. From its deceiving size down to its distinctive trim scheme, the Blackjack 24 comes ready to be your ace in the hole and to deliver the RC boating action you crave. Equipped with a formidable 2000Kv water-cooled motor and action ready Li-Po compatible 30-amp ESC, this 24-inch catamaran is sure to turn heads with the kind of power and speed that no one will see coming. So go all in, raise the stakes and claim your bounty with the Blackjack 24 catamaran.
- Capable of reaching speeds of 30 MPH with optional accessories
- Equipped with a brushless 2000Kv water-cooled motor and 30A Li-Po compatible ESC
- Includes 2.4GHz Pro Boat radio system
- Off-set rudder system provides superb stability and keeps the Blackjack-24 glued to the water
- Hull mounted waterproof steering servo
- One piece internal electronics tray
- Convenient drain plug
- Waterproof electronics
- 24 in (609.6mm)
- Motor Size:
- 2.4GHz Transmitter, 2-Channel
- Speed Control:
- Hull Material:
- Trim Scheme Colors:
- Red with black
- Prop Size:
- 1.34 x 2.06 in (34 x 52mm)
- Hull Type:
- (1) 7.4v 30C+ LiPo or (1) 11.1v 30C+ LiPo
- Drive System:
- Experience Level:
- Recommended Environment:
- Assembly Time:
- Less than 1 Hour
- Is Assembly Required:
Titanic sinks At 2:20 a.m. on April 15, 1912, the British ocean liner Titanic sinks into the North Atlantic Ocean about 400 miles south of Newfoundland, Canada. The massive ship, which carried 2,200 passengers and crew, had struck an iceberg two and half hours before. On April 10, the RMS Titanic, one of the largest and most luxurious ocean liners ever built, departed Southampton, England, on its maiden voyage across the Atlantic Ocean. The Titanic was designed by the Irish shipbuilder William Pirrie and built in Belfast, and was thought to be the world’s fastest ship. It spanned 883 feet from stern to bow, and its hull was divided into 16 compartments that were presumed to be watertight. Because four of these compartments could be flooded without causing a critical loss of buoyancy, the Titanic was considered unsinkable. While leaving port, the ship came within a couple of feet of the steamer New York but passed safely by, causing a general sigh of relief from the passengers massed on the Titanic‘s decks. On its first journey across the highly competitive Atlantic ferry route, the ship carried some 2,200 passengers and crew. After stopping at Cherbourg, France, and Queenstown, Ireland, to pick up some final passengers, the massive vessel set out at full speed for New York City. However, just before midnight on April 14, the RMS Titanic failed to divert its course from an iceberg and ruptured at least five of its hull compartments. These compartments filled with water and pulled down the bow of the ship. Because the Titanic‘s compartments were not capped at the top, water from the ruptured compartments filled each succeeding compartment, causing the bow to sink and the stern to be raised up to an almost vertical position above the water. Then the Titanic broke in half, and, at about 2:20 a.m. on April 15, stern and bow sank to the ocean floor.
Because of a shortage of lifeboats and the lack of satisfactory emergency procedures, more than 1,500 people went down in the sinking ship or froze to death in the icy North Atlantic waters. Most of the 700 or so survivors were women and children. A number of notable American and British citizens died in the tragedy, including the noted British journalist William Thomas Stead and heirs to the Straus, Astor, and Guggenheim fortunes.
One hour and 20 minutes after Titanic went down, the Cunard liner Carpathia arrived. The survivors in the lifeboats were brought aboard, and a handful of others were pulled out of the water. It was later discovered that the Leyland liner Californian had been less than 20 miles away at the time of the accident but had failed to hear the Titanic‘s distress signals because its radio operator was off duty.
Announcement of details of the tragedy led to outrage on both sides of the Atlantic. In the disaster’s aftermath, the first International Convention for Safety of Life at Sea was held in 1913. Rules were adopted requiring that every ship have lifeboat space for each person on board, and that lifeboat drills be held. An International Ice Patrol was established to monitor icebergs in the North Atlantic shipping lanes. It was also required that ships maintain a 24-hour radio watch.
On September 1, 1985, a joint U.S.-French expedition located the wreck of the Titanic lying on the ocean floor at a depth of about 13,000 feet. The ship was explored by manned and unmanned submersibles, which shed new light on the details of its sinking.
REMOTE CONTROLLED VERSION SOLD FULLY ASSEMBLED Ready for Immediate Display – Not a Model Ship kit Unmatched in elegance, detailing or craftsmanship, these opulent Limited Edition scale model RMS Titanic replicas are the museum-quality crown jewel of our fleet of RMS Titanic models. Enjoy the exquisitely crafted and delicate features abounding upon her decks, the grace and majesty of her carefully rendered lines, and the attention to every detail of this superlative model of history’s most famous ocean liner. Be swept away by the magnificent splendor and timeless allure of these RMS Titanic replicas.72 inch Long x 10 inch Wide x 24 inch High (1:212 scale) Wireless Controller included Built from scratch by master artisans High quality woods include cherry, birch, maple and rosewood Museum Quality features not available in other models or any kit Paint colors precisely matched to those of the RMS Titanic ships All windows and portholes exactly sized and positioned according to the original RMS Titanic construction plans Historical design and detailing of superstructure and hull Open promenade decks visible through superstructure windows Precise superstructure design and detailing Triple propeller design and accurate anchors Metal trussed crane booms with twin cables and pulleys on cargo hooks Detailed, separate lattice grates on all ducts and vents Metal slat deck benches rather than solid carved wood Finely-crafted wire maintenance ladders ascend smokestacks Meticulous painting to accurately match the actual RMS Titanic Amazing Details, including: Lifeboats hung from launching davits Rigging and stay-lines on all… Credits:http://www.history.com/
The Recoil® 17 Deep-V makes pushing the limits of brushless boating easier than ever before with a revolutionary hull that will never leave you “up a creek without a paddle”. Thanks to an intuitive self-righting Deep-V system, you can push a 2950Kv brushless motor and LiPo ready 30A ESC to the edge without hesitancy. In the event you put the Recoil upside down; a self-right hull makes flipping the Deep-V over as easy as hammering the throttle down. With its outstanding package and self-righting hull, Deep-V fun has never been as easy as it is with the Pro Boat Recoil.
- Capable of reaching speeds of 25+mph
- Self-righting hull system keeps you from going belly-up
- Water-cooled 2950Kv brushless motor and 30A Dynamite® ESC
- Includes Pro Boat 2.4Ghz marine radio system
- Aluminum rudder with stainless trim tabs
- Composite molded 2 blade propeller
- 17 in (432mm)
- 4.5 in (114mm)
- Motor Size:
- Outrunner BL marine motor (2950Kv)
- 1.15 lbs (0.52kg)
- 25+ MPH
- ECX 2.4Ghz System
- Speed Control:
- 30A BL Marine ESC 2-3S
- Hull Material:
- Trim Scheme Colors:
- Red with yellow trim scheme
- Prop Size:
- Hull Type:
- 3S 20C
- Drive System:
- Experience Level:
- Recommended Environment:
- Assembly Time:
- Less than 1 Hour
- Is Assembly Required:
A guided-missile destroyer is a destroyer designed to launch guided missiles. Many are also equipped to carry out anti-submarines, anti-aircraft, and anti-surface operations. The NATO standard designation for these vessels is DDG. Nations vary in their use of destroyer D designation in their hull pennant numbering, either prefixing, or dropping it altogether. The U.S. Navy has adopted the classification DDG in the American hull classification system. In addition to the guns, a guided-missile destroyer is usually equipped with two large missile magazines, usually in vertical-launch cells. Some guided-missile destroyers contain powerful radar systems, such as the United States’ Aegis Combat System, and may be adopted for use in an anti-missile or ballistic-missile defense role. This is especially true of navies that no longer operate cruisers, as other vessels must be adopted to fill in the gap.
Features: Remote Control,Flashing
Type: Boat & Ship
State of Assembly: Ready-to-Go
Action Time: 25 minutes
Brand Name: SZ star
Age Range: 5-7 Years,8-11 Years,12-15 Years,Grownups,> 8 years old,> 14 years old,> 6 years old
Remote Control: Yes
Design: Aircraft Carrier
Controller Mode: MODE2
Max Speed: 6km / h
Charging Time: 6 hours
Remote Distance: 80 meters
Power Source: Electric
Charging Voltage: 110/220V
Control Channels: 4 Channels
Model Number: TH112 Item Description:Product Name: Destroyer
Model Scale: 1: 275
Maximum speed: 6km / h
Hull Dimensions: 78x21x10cm
Box size: 82x25x18.5cm
Package weight: 2.8kg
Remote distance: 80 meters
Rechargeable Battery: 7.2V 800mAh
Charging time: 6 hours
Time: 25 minutes
Product features: forward, backward, turn left, turn right, lightingItem Package List:
Remote control x1
Rechargeable battery x1
Satisfy your craving for speed and precision with the Voracity™-E 36 Brushless Deep-V. Sitting beneath the sleek trim scheme and canopy of the Voracity™-E Brushless Deep-V you’ll find a water-cooled 120A ESC and a fierce 6-pole 1650Kv 40x82mm brushless motor. This unbeatable combination sits atop a hand-laid Deep-V fiberglass hull that has been optimized for peak performance, even in rough conditions. Push the speed envelope and give the competition a run for their money on the open water today.
- Capable of reaching speeds of 50+ mph
- Includes Spektrum™ 2.4GHz DX2E DSMR Radio System with SR310 Receiver
- Water-cooled Dynamite® marine 120-amp ESC (6S compatible)
- Optimized hull constructed from lightweight fiberglass
- Offset rudder, rudder-mount, and prop strut built of high-strength aluminum
- High torque, waterproof steering servo
- Sealed twist latch canopy system
- Waterproof electronics
- Boat stand included
- 36 in (914.4mm)
- 11 in (279.4mm)
- Motor Size:
- Water-cooled Brushless 40x82mm 1650Kv
- 6.10 lbs (2.8kg)
- 50+ mph with 6S LiPo
- Spektrum DX2E
- Speed Control:
- Dynamite 120A, 2S-6S
- Hull Material:
- Fiberglass composite
- Trim Scheme Colors:
- Metalic Blue, White, Gold
- Prop Size:
- 1.6×1.77 in
- Hull Type:
- (2) 7.4v 5000mAh 50C+ LiPo or (2) 11.1v 5000mAh 50C+ LiPo and EC5 connector
- Drive System:
- Flex Shaft
- Is Assembly Required:
Elevating Action on the Water
There are those products that come to market that get you all riled up as if you were a kid again and what you see on these pages is sure to get you going. As a kid, who didn’t want a sailboat that set off for unexplored lands while you played on the beach? And who didn’t want a plastic boat that braved the rapids of that stream behind your house? Well for big kids into boats, there is a new release that will blow away the wildest inner child’s imagination. The new Aquacraft Rescue 17 Fireboat is the first model boat I’ve ever reviewed with an “interactive” feature, a rotating water cannon capable of shooting a stream of water 10 to 12 feet. It also has lights and a powerful brushless system to propel it to other boats in peril. This boat is sure to get that inner kid in you excited to brave the water as a scaled-down fireboat captain. Let’s Get the Rescue 17 out of the Box
The Rescue 17 arrived in a big shipping box. With an overall length of 38 inches, a large shipping box is required to protect the model. I was impressed by the packaging technique utilized to secure and protect the hull and cabin structure. There’s a considerable amount of packaging engineering required to create the foam padding encasing the hull to prevent damage during shipping. Although I had seen photos of the Rescue 17 on the inside cover of RC BOAT, Volume 4 and the AquaCraft website, I was still very impressed with the attention to scale detail on the hull and cabin structure. The Rescue 17’s amazing amount of detail adds to the realism. The old axiom, “A picture is worth a thousand words,” will provide a visual listing of the scale detailing.
Getting Ready to Put out the Fire
There only a couple of things that need to be done to the Rescue 17 to prepare for operation. The light mast is secured to the top of the cabin with the .15 x 16 screw provided. A dab of CA glue applied to the bottom peg of the antenna will hold it to the light mast. Two “AA” batteries, not provided, are installed in the battery holder inside the cabin to power the light mast. The plug between the battery pack and on/off switch needs connecting. The Tactic TTX 490 4-channel radio requires four “AA” batteries that are also not provided.
Propulsion for the Rescue 17 is provided by an AquaCraft 600 brushed motor powered by a 2200 – 3300 mAh 3S LiPo battery pack. There’s plenty of space in the boat to use a 3S pack with a even a higher mAh rating. The AquaCraft Multi-Controller ESC provides both forward and reverse. Reverse speed is probably around 25 percent of top speed in forward.
It is highly recommended that the pump be primed prior to using the water cannon. There is a direction sheet describing how to prime the pump. This procedure involves removing the water line from the intake tube to the pump, submerging the line in water, and then reattaching the water line. I primed the pump using a fuel bulb filled with water and connected to the intake tube. Squeeze the bulb till water shoots out of the water cannon and the pump is primed. A two-ounce Sullivan Brand fuel bulb is a common hobby shop item. It would also be possible to adapt a cooking baster bulb to shoot water into the pump. Putting out the Fire and/or Candles
Before heading out to run the Rescue 17, I dropped by the local Walgreens to pick up some candles. I have run nitro, gas, electric and sail boat model models over the past 50 years, but the Rescue 17 is the first time I’ve ever operated a model boat capable of extinguishing a fire. Granted, four candles on a piece of foam don’t provide a blazing fire. The candles did, however, provide sufficient flame to test my mini firefighting skills. I quickly discovered attempting to hit the candles with the water cannon wasn’t all that easy. Hitting the candles with the stream of water involved positioning the Rescue 17 the correct distance from the candles, using rudder and speed control and rotating the water cannon to spray across the candles. Racing a 60 mph hydroplane involves less coordination of transmitter inputs than attempting to keep the stream of water from the water cannon on the candles. The slightest amount of breeze greatly influences the positioning of the boat and the direction of the stream of water. At full throttle, the Rescue 17 moves across the water on plane with a great-looking bow wake. It is capable of making tight corners in either direction. However, sweeping corners would be more in keeping with scale operation of a fire boat. Run time with a 2200 mAh 3S LiPo pack was 12 – 15 minutes, running at full speed. Longer run times would be available if the Rescue 17 was stationary or operated slowly while attempting to extinguish candles. After Run Maintenance
A maintenance step not included in the instruction manual was greasing the driveshaft. After approximately one hour of running the Rescue 17, I removed the driveshaft and it needed to have grease applied. It is necessary to remove the rudder to allow removal of the prop shaft. A 1.5mm set screw wrench is required to loosen the set screws on the rudder control arm and shaft coupler. A thin coating of Grim Racer Speed Grease Drive Cable Lube was applied to both the driveshaft and rudder shaft. Wipe any excess grease from the end of the prop shaft to avoid splattering grease on the hull bottom. It was necessary to push the driveshaft slightly downward to insert the shaft back into the coupler. Make certain the flat area on the shaft matches the coupler set screw.
Aftermarket Siren from RAM Models
After numerous trips to the lake with my Rescue 17, it seemed like there was something missing from the experience. That missing something was a siren. Having spent time at hobby shows with Ralph Warner, owner of RAM Radio Control Models, I knew Ralph had a siren in his electronics products inventory. Anytime I call Ralph, I know I’m in for a well-deserved, good natured ribbing. Over the years, Ralph has been very generous, providing me with various items his company sells for the RC aircraft, boat, and car enthusiast. Just a few days after our conversation the RAM Mark II Siren arrived in the mail.
The siren kit consists of a circuit board, on/off micro switch, cardboard material for a speaker box, a 1.5-inch speaker, and directions with diagrams. The only assembly required is constructing the speaker box and gluing the speaker to the box. I painted the box black and attached Velcro to the top. Velcro was also applied to the top of the cabin in back of the middle window. The plastic window was removed to allow the sound to exit the cabin. The on/off micro switch is mounted to a separate servo with double back tape. A Y-harness plugged into the throttle section of the receiver actuates the servo when throttle is applied. I spliced a connector into the wires leading to the speaker which allowed the cabin to be removed without having to remove the speaker.
The siren definitely adds realism when the Rescue 17 is in operation. The RAM Mark II Siren is available from RAM Radio Control Models, RamRCandRamTrack.com, or you can give Ralph a call at (847) 740-8726.
The Last Word
The Rescue 17 is a model boat an entire family could enjoy operating. My wife, Maren, ran the boat for the photo shoot. Maren’s attempt to extinguish the candles proved rather challenging. Steering the boat wide open around the lake proved much easier than dousing candles 10 feet off the bow. The Rescue 17 is visually impressive as a static and operational model fire boat and it can provide a feeling of accomplishment when the only thing moving is the water cannon spraying water on candles. The Rescue 17 is proof you don’t have to be going fast to have fun with a model boat. Credits: http://www.aquacraftmodels.com/, http://www.rcboatmag.com/, Tony Phalen and Words & photos by Jerry Dunlap http://
In over a decade of my Radio Control Boating experience, I have come in contact with many different Fast Electric boats. I can remember the days of charging up my NiCD packs in anticipation of a solid day of boating. Then one day there were an overwhelming amount of people switching to the newer NiMh battery technology. NiMh proved as a solid performer for many years to come. Then to every RC maniacs dreams, LiPo’s were born. This technology in batteries have given RC in general one of the biggest uproar. It allowed a much greater overall power system to be used in any RC imaginable.
Now in the boating community this was very big news. Boats take a tremendous amount of power to drive them at speeds that a typical RC car would travel at. This need for extreme power was the result of intense amounts of drag for any object moving through water. This shouldn’t come as a surprise, when was the last time you changed your disk brakes on a boat? Yep boats don’t have brakes, it feels as if they have permanent anchors.
Before the battery technology and brushless technology that we currently have today, it was difficult to get a Ready to Run boat that traveled faster then 40 km/h. In most cases, when you did have a boat that was in that range of speed, it had to have 2 brushed motors running to the same prop shaft, running off of multiple cells and through an awkward transmission coupling it all together.
It wasn’t until the very first Mainstream boat was introduced that we started seeing some excellent performance numbers that changed the Ready to Run boating market.
The Hull of Fame – Fast Electric
The boat that enters the hull of fame at RadioControlInfo is one that every enthusiast will remember. It was the first mainstream brushless boat that could really benefit from LiPo’s, but many were still using top notch NiMh packs with great success.
Entering the hull of fame is the Aquacraft Supervee 27 RTR.
This Boat sold well before it even hit stores, it was well marketed, well designed, and well built. Many popular features were built in to the boat to ensure that it performed well, we will first start with the hull itself.
Why the Supervee “27” – The Hull of Fame
The Supervee 27 was called the Supervee “27” as the hull length was based around being 27 inches in length. This was an important part of the design as size did matter. A hull under performs if the length is too small, but here’s the catch. The hull also under performs if the boat is sized to long. The under performance changes in each case where a smaller hull will suffer in the handling department and a hull that is sized too large for its power system will suffer in its power and performance department. In order to get this correctly, it takes a precisely selected hull length.
Running Hardware – The Hull of Fame
Blue anodized running hardware was nailed to the back of this hull. The blue colour looks great, and the sizing of each individual component was well determined and affected the handling performance in a very positive way. Now since there’s so many good things about this boat to talk about, let’s hurry up and get over the one issue that this boat suffered from. Water cooling. Yep, that’s it. Now did it matter? Mine ran no problem with the limited amount of water that circulated through the cooling system. The problem was found to be in the aluminum rudder of this hull and Aquacraft corrected this problem in a later version of this hull. Now that we are over that one hurdle, let’s move in to the power system.
Welcome to Brushless Power – The Hull of Fame
Aquacraft dropped in the best power plant that a high volume RTR hull has seen in all of fast electric boating history, making every father shake in his shoes while driving one of these. Pop open the cowl on this boat and you will find a 3/4 horsepower electric motor. It isn’t just any motor, it’s a brushless motor. Brushless motors at the time were relatively new to people and the 3 wires coming out of the can on this motor would confuse many people. I remember the countless threads titled ” which motor wire connects to which ESC wire?” This just goes to show the lack of experience in brushless motors in that particular time. Not many people seen them in boats before, especially RTR boats.
Electronic Speed Control – The Hull of Fame
The component responsible for delivering battery power to the motor was an ESC (Electronic Speed Control) that was still designed around NiMh batteries. The only reason one could not use LiPo’s was because of the lack for an appropriate low voltage cutoff built in to the ESC. If you wanted to run the boat on LiPo’s you would simply have to time your run and bring the hull in after a certain time period or purchase a 3rd party device that would incorporate a lower voltage cutoff. Timing your run is something that I talk about a lot in the build a fast electric boat part of the website, and is something that every boater should be doing in good practice. When performed correctly this is a guaranteed way of preventing any over discharging of the batteries.
Putting it all together – The Hull of Fame
When putting it all together, this hull sold for approximately 300 USD. At this price point it was a very good deal, especially for something this advanced in the boating market. No other Mass produced radio control boat had all of these features combined in to one solid package.
What did you get in terms of performance? Well, quite a handful. The handling characteristics of this 27 inch long hull was very good considering the speed you could achieve. Among many things, cornering felt smooth and predictable. Tight turning radius’ were possible at 70% speed which offered excellent control. This however was only possible during a right hand turn. Due to the nature of racing, our RC models at a race circuit will only make right hand turns and keeping this consistent, the Supervee 27 was only fitted with a right hand turn fin which did not allow for aggressive left hand turning performance. The overall speed of this boat heavily outweighed this small minute obstacle. With 64km/h speeds possible, this boat was a handful. Even with NiMh packs, maintaining over 55km/h was entirely possible.
Paving the Road in to the Future – The Hull of Fame
Aquacraft Models whether they knew it or not paved the road for companies to jump on board the Ready to Run High performance Radio Control boating market. Looking at what we have available now is surely different in terms of variety then it was just 7 or so years ago. Someone had to break the ice and it did not take long until there were Supervee’s buzzing around the lakes and ponds right after that ice starts to separate. Credits: Ryan http://www.radiocontrolinfo.com/ http://
A Basic Guide to Wind-Powered Boating – For anyone who might be interested in RC sailing it can sometimes be difficult to determine such things as what kind of sailboat to start out with, how to set it up and then how to best enjoy it on the water. Only a small percentage of hobby dealers are RC sailing savvy; so, this article will focus-on giving the novice sailor all of the information required to choose his/her’s first wind-powered marine craft.
Since RC sail craft are available in many shapes that feature different mast/keel layouts, the beginner will need to first figure-out what size yacht will fit his/her lifestyle. If you have a small vehicle and limited storage space at home, a 20 to 30-inch long hull with an easily detachable mast/sails and a detachable lower keel may best suit your needs. If you choose a larger hull with an equally long mast and keel, it will take-up a lot more vehicle trunk volume; plus, more pre-sail assembly at the lake. Now if your local sailing location has any amount of submerged vegetation, a hull with a shorter-length lower keel will help prevent any weed buildup problems on the underside of the boat. As for the mast/sail layouts available, most kit/RTR boats use a two-piece mast to ease transport and the lower keel mounts in a recess in the hull bottom and it’s retained by a single thumb nut on the deck of the hull. KIT VS. RTR
Until recently the only way to start out in RC sailing would involve building a kit boat made-up from either a wood, fiberglass or molded plastic hull. Today both plastic and fiberglass RTR yachts are commonplace; so, you can now choose between constructing your first sail craft from a kit or by going with an almost-ready-to-run sailboat. If you’ve had some previous RC car/aircraft experience and have enough workspace, a sailboat kit from such companies as Victor Model Products, Thunder Tiger, Kyosho and Graupner can be built using regular hobby tools, adhesives and paints. To complete the majority of these kits you’ll only need to roundup a stick-style, two-channel surface radio with two servos, one of which will need to be a high-torque model to control the movement of the jib/main sails on the mast.In the event you decide to go with a RTR sailboat, Pro Boat, AquaCraft and several of the kit makers listed above all sell preassembled yachts that are suitable for the novice sailor. In most cases, these RTR boats come from their boxes with only the need to install the pre-rigged mast and sails, attach the keel unit and assemble the hull’s support stand. Adding some batteries to the boat’s radio system will finish-up the yacht’s basic buildup as you can then check/trim the rudder and sail movements on the prepped hull. Once rigged at lakeside, you’ll want to make sure that all of the vessel’s mast and sail control lines are properly attached and tensioned as indicated in the owner’s manual. Then make a quick range check of the powered-up radio system to make sure that the sails and rudder run through their full range of motions. At this juncture you can launch your new sailboat and the fun of learning how to use the wind to “power” your hull can begin. A typical yacht’s onboard radio compartment will contain two servos, one of which will only need to be a regular-output unit for rudder control while the other will be a more high-torque servo to properly manage the movement of the sails. First runs: Depending on the wind’s direction across the water you’ll find that by letting out the sails (moving the left stick on the transmitter upwards) will “catch” the air and this is what’s called running downwind or with the wind. To sail in the opposite direction (towards the wind) you’ll have to steer the hull at an angle to the air which is “tacking” and this technique will have less sail extension than the downwind transmitter stick settings. If you steer the boat’s bow directly into the wind it’ll likely just sit there which is to put the yacht “in irons” and the sailor will have to let the bow swing to one side to again get air in the sails. An important factor to sailing in either wind condition is that you must have enough forward hull speed to maintain the flow of water past the rudder blade as this will allow you to turn the hull whenever needed. It will take some time to master the balance between wind speed, sail settings and hull angles to the wind; but, in only a short time the novice will be able to maneuver his/her yacht no matter which direction the air is moving. Should you decide to put your yacht in competition, many sailboat clubs include kit and RTR hull classes in their race programs and with their sometimes tight rule packages you’ll have close racing like this in your future. Sail support: Like all RC activities model sailing is more fun with a group of boaters and it’s not hard to locate other sailing enthusiasts that might reside near your home. The American Model Yachting Association’s website features a nice club directory to help you pinpoint and contact fellow sailors in your area and you can also use the site to help look for any yacht hardware or racing rules that apply to your brand boat. Custom sails, servos, etc. are all found in the suppliers listing while the rules guidelines section will tell just what modifications on your hull should you decide to try your hand at sailboat racing. Many current RTR and kitted sailing hulls regularly compete throughout the country and the sport sailor can learn a lot of useful running tips from those who race the very same sail craft as the one bought by the beginner. The adaptability of most RC yachts make them fun because both the sport and competitive sailor alike can upgrade their hull’s setup to improve the boat’s on water performance and do it for only a small outlay from their RC budget. When running your boat against the wind, moving the left stick downward on the transmitter will move the sails closer to the center of the hull and by combining this action with running the vessel sideways to the wind you’ll “tack” the sailboat until you’re ready to swing downwind again.
• Always apply a drop of CA glue to each rigging cord knot to prevent any mast/sail spillage in breezy conditions.
• When rigging the hull lakeside, keep the boat out of direct winds or simply lay it on the grass to avoid a blow over.
• Remember, a setup sailboat doesn’t like to be anywhere near a running ceiling fan.
• Braided fishing line (with the same outside diameter) can be used to repair/replace any mast or sail lines.
• Be sure to take a folding chair to the lake because the average yacht can sail for a minimum of two hours.
• Since most of a sailboat’s weight is in the keel, carrying it by the lower keel will be the most stress-free way to launch/retrieve it at the lake. WRAP UP
Equally suited to anyone looking for a quiet way to unwind from work or to experience a new style of RC boat racing, today’s selection of RTR/kit yachts can easily fit the requirements of the first-time sailor. Capable of conforming to any boater’s storage, transport and local sailing conditions a RC sail craft will only demand a simple cleanup and battery recharging between trips to the lake to enjoy some more wind-driven boating fun.A regular two-stick surface transmitter is used to control sailboats with the left stick being used for sail movement while the right stick sends commands to the hull’s rudder blade. Credits: Tony Phalen and http://www.rcboatmag.com/ http:// http://
GET YOUR DEGREE IN BOATING 101
While RC airplanes and cars tend to get the majority of modelers’ attention, there is another area of RC that can be just as much, if not even more fun than both. RC boats provide a totally different experience than flying a plane or driving a car on many different levels. There are boats for everyone from performance enthusiasts, casual sailing fans, those who love the detailed runabouts of years gone by and more. Besides the aesthetics of individual boats, there are other considerations to think about such as battery or fuel power, to build or buy a Ready-To-Run boat and more.
When talking about the performance and handling of a particular boat, the configuration of the hull will have enormous impact on the overall performance and handling of a boat on the water. When talking about the different types of hulls there are several different configurations commonly used in RC boats that we’re going to discuss. They are, in no particular order Deep-Vs, catamarans, sailboats and Minis. Deep-Vs are one of the most popular hull style for boats and are capable of tremendously high speeds. A Deep-V gets its name after the look and profile of the hull’s distinctive V-shape. This hull configuration relies on hull strakes for improved stability and cornering ability, and its Deep-V design helps the boat absorb the impact of bigger waves on rough water. In addition, the V-shape causes the boat to bank in the turns to assist turning. When you jump on the throttle with a Deep-V, the nose will typically come out of the water and as the boat gets on plane, it will ride on the rear 1/3 of the hull. Catamarans have been modeled after off-shore race boats and, due to their wider hull footprint acting as 2 sponsons, provide additional positive stability when compared to a Deep-V. The additional hull surface in the water provides the handling improvements and increased stability. While it is more stable, the fact that a catamaran has more of its hull in the water translates into increased drag and slightly reduced top speed. For the best in relaxation, sailboats offer the lowest maintenance and are very fulfilling in regards to boat-handling skills. With no power other than the wind, skills must be honed to learn how to adjust the sails to take best advantage of wind currents. There is nothing like tacking into the wind, seemingly defying the wind direction. When you want to drive a boat but you don’t have access to a huge piece of open water, a mini boat is the perfect option. Minis are smaller than other boats, but they feature similar handling and performance characteristics of their larger cousins. Minis are available as RTRs that require very little preparation time to get on the water and provide an inexpensive and economical way for someone to get their feet wet in the world of RC boating. Some mini boats can even be driven in swimming pools if you need to get your boating fix in a snap. While fuel-powered boats used to rule the roost recent advancements in motor and battery technology has swung the pendulum in favor of electric boats. Electric boats also provide simple, plug-and-play operation. When you want to drive your boat, all you need to do is charge up the battery pack, plug it in, and you’re ready to go. There are two different electric power types that a boat can use, brushed or brushless. Brushed motor systems provide a good place for people to get their feet wet in RC boating, so-to-speak, without breaking the bank. Brushed motor systems are a little slower and less expensive but still provide decent power and runtimes. Brushless motor systems provide more power, requires less maintenance than brushed motors and can handle a higher voltage level. With brushless motor systems you’ll see an increase in acceleration and top speed while also being more efficient than their brushed counterparts. With some brushless motor systems they can handle over 22-volts! Now that’s some serious power! Gasoline-powered boats use basically the same gasoline that your full-size car uses, making refueling relatively inexpensive and easy. There is one difference between what your car runs on and what an RC boat utilizes for fuel. RC boats run off of a gasoline and oil mixture, very similar to what you might use in a gas leaf blower or string trimmer. Boats that run off of gasoline engines are larger and use a larger displacement engine than their nitro-powered cousins. Regardless of whether you decide to go with a nitro- or gasoline-powered boat, you will find that, generally speaking, fuel-powered boats offer extended run times when compared to battery-powered boats. Fuel-powered boats also offer the intangible sensation of the realistic sound produced by the engine as it rips across the water’s surface, adding to the experience and excitement. The engine noise could possibly eliminate some ponds and streams from consideration as areas to drive in. Much like the advancements to the power systems we’ve seen some solid improvements in the realm of RC transmitters and receivers. 27Mhz and 75Mhz radio systems have, for the most part, been replaced with 2.4GHz systems. With 2.4GHz systems you will be less prone to interference from other sources and you don’t need to worry about frequency conflicts like in years past. Spektrum’s 2.4GHz Marine Technology also adds in the extra safety of an integrated cut-off to prevent runaways. As with all mechanical devices, inevitably some maintenance or repairs must occur. There are several key tools that you should have on hand at all times in case you need to perform basic maintenance, repairs and tuning. Whether it’s a kit, ARR, or RTR, there should be a small plastic baggie that includes a basic assortment of tools and Allen wrenches. These tools tend to work for a while, but the metal they’re made out of is relatively soft. After several uses, the heads of the wrenches can round off, making getting a good bite on a screw head a real pain. Invest in a good hobby-grade set of Allen wrenches and nut drivers. You’ll realize their value the first time you use them. Dynamite carries a wide variety of hand tools to make these jobs go as smoothly as possible. These sets come in the most popular sizes used in RC and are as durable as they are affordable. From Allen wrenches and nut drivers to glow drivers and accessories, Dynamite has the right tools for the job. Other key tools for your box should include things such as a tuning screwdriver for making needle adjustments on your engine, needle-nose pliers, fuel bottle, glow igniter (also known as a glow driver) and extra glow plugs. Both electric and nitro boats can make use of a battery charger. Obviously electrics will need to have their main batteries charged, but rechargeable batteries are used in nitro boats too. From the batteries for hand-held starters to receiver packs, having a good charger can make it easier to run your boat. Timer chargers will save you money, but don’t provide quite as complete of a charge. Peak detection chargers cost a little more but feature circuitry to ensure your battery pack is brought to a complete charge safely.
If you are planning on purchasing an electric-powered boat, some RTRs may require you to purchase a battery pack and a battery charger. You may even need to purchase these items for a nitro boat as well, especially if your nitro boat includes some sort of electric or hand starter. There are several things to consider when purchasing a battery pack. One of the biggest things to consider is the type of battery you will use, be it LiPo or NiMH. NiMH batteries are less expensive and provide solid performance. NiMH packs do tend to have a sharper discharge curve, meaning the speed and performance difference between the start and end of a run tends to be greater. You also have performance declines from one run to another in a day commonly. Another option would be to go with LiPo battery packs. LiPo batteries are lighter weight than NiMH packs and have a flatter discharge curve, meaning the performance from start to finish is more consistent. LiPo batteries also don’t have performance degradation issues like NiMH packs have.
Another consideration with LiPo battery packs is what is called the “C” rating. The C-rating of a battery refers to the amperage discharge capability of a particular battery. The higher the C-rating of a pack the more load it can handle without issue. You can always go with a higher C-rated battery for a boat but you never want to go with a lower C-Rating. For most boats a 30C rating or higher is sufficient.
Finally you’ll want to consider the capacity of your battery. Capacity refers to the amount of run time per charge each type of pack is capable of. A higher milliamp rating, or mAh, will translate into a long time between charges. For example a 3300mAh battery would run out of power before a 4200mAh battery pack. You can adjust the capacity up or down without issue, the only difference would be how long the battery runs before it needs to be recharged. Credits: proboatmodels.com and
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