The Prohibited Areas Of UAV Flight

There are increasing people playing the drones. Although many countries do not have the complete monitor system, some countries have the law to confiscate your drones. As a pilot, the first thing you should know is that flying in some areas is prohibited. Tattu, specialized in the UAV battery, will introduce you some prohibited areas. Hope that help!

1.Airport

Once, the drones interfered the take-off of the plane, and the military helicopters are used to solve this problem. There is no bird in the airport, not to mention the drones. And China has clear law to clarify that the airport and its surroundings cannot have UAVs. The manufacturers have updated their product, which will stop the engine if the symbol of airport has been found.

2.Business district and the crowd

For others' safety, please choose the empty space to fly.

3.High-voltage wires

There is interruption around the high-voltage wires. Though the human cannot feel it, the UAVs cannot stand it. It is common to see the drones fix the wires, but those drones have been refit or custom-made.

4.Base station of mobile phone

Compared to the high-voltage wires, the base stations are often ignored, because they exist everywhere and hard to find. The base station can launch the radio, which undoubtedly interfere the drones. Furthermore, the base station interfere more the remote signal between the drones and the ground, especially the new built 4G base station. It has been proved that the 4G base station has evident interference to the 2.4G remote signal of Futaba, which shows the dramatically shortened remote distance. In cities, we should escape the roof of building where has established the base station. If you notice the dramatically shortened remote distance, please observe whether there has base station.

5.The indoor stadium without GPS

Please choose other suitable place, unless your drone has visual location system which support to fly indoor.

6. Under strong wind or bad weather

The common drones can bear the wind of Level 4-5. Do not challenge your drone in the 5th level of wind.

7. the metal facility.

It has strong interference.

8. military center and government

the restriction varies from country to country. We should pay attention to such information before flying. and also choose a better battery,such as Tattu 22.2v lipo battery,Gensace & Tattu hope everyone enjoys the UAV flight!
Source: http://www.genstattu.com/blog/the-prohibited-areas-of-uav-flight/

Contrast to select different of RC car power

According to the motivation source of RC car, which is divided into two kinds. One for motor drive electric RC car, another for two-stroke air-cooled engine driven oil move RC car, and according to the fuel oil motor car, divided into gasoline car and methanol. We will make simple analysis according to the basic configuration and the advantages and disadvantages of each characteristics of the dynamic, to help beginners have a more intuitive understanding of the different of RC car power.

The first kind:Electric remote control model (Electric Powered), referred to as EP.

Electric RC car

Electric RC cars use lipo battery as power, output power to the motor, through the gear, the power transmission to wheels, a driving force for vehicles.
 
Basic configurations of electric RC car including as follow: the RC car, charger, controller and Gens ace 5000mah lipo battery.
 
Electric RC model car is the best choice for beginners, has the following characteristics:
1. The electric car has small inertia, easy to grasp, when you go on the road, beginners don't need too much set-up like a gasoline.

2. The electric car do well on linear output, the weight is lighter than gasoline, so the traction manipulation is flexible, corner speed higher than that of gasoline, if is the venue for many corners, short straights, laps of the electric car is faster than a gasoline, and the electric car start up speed, speed curve, linear speed is not lose oil.
3. The car don't have to repeat purchases, fuel investment, only need to install the RC car battery can be on the road, being recharged reuse, environmental protection free from contamination.
4. The electric car is not a nuisance, quiet street, don't be afraid to fry them anymore. This is the most significant characteristics of RC car batteries lipo

The second: GP remote control model car(Gas - powered) , hereinafter referred to as GP, block is divided into gasoline car and methanol.

Gasoline RC model car

The structure of GP RC Car is very close to the real car, gasoline vehicles using the two stroke gasoline engine.
The basic configuration of GP RC Car are: car, controller, gasoline, oil, oil pot.

GP RC Car is a beginner's second choice, has the following features:

1. GP RC car has simple structure, high strength of the frame, the damage rate is low, stable performance and easy maintenance.

2. The engine is simpler to set-up, the set range of oil needle is small, for beginners ,you don't have to often emphasis on set-up the vehicle.

Most engines of GP RC car are installed on the central of frame, the vehicle's weight is located in the central after partial, and that are the same as most of the super sports car in the world's center of gravity location , so the manipulation of the GP car is flexible , speed is fast, walking stable.

In the petrol car ratio majority with 1:8 and 1:5. Itself weight and volume is big, the request to walk on the road is no demanding as small proportion car so , what's more, four-wheel can independently suspension and gasoline vehicles, large hydraulic shock absorber, makes the strong ability of block pavement through.

Gasoline engine of a GP remote control car can use avalanche to describe, listened to the blood boiling, frying street tool. Here also remind all beginners must go to special field or unmanned broad areas to play.

Methanol RC model car

Methanol RC model car also use two-stroke air-cooled engine.

Basic configuration of methanol RC model car including: car, controller, synthetic fuels, igniter.

Methanol RC model car is the third choice for beginners, has the following characteristics:

Compared with gasoline, methanol car can do a smaller engine , as a direct result of vehicle size can be smaller. Gasoline vehicle general size for 1:8 and 1:5, and the size of the methanol car can do 1:18 size. Due to the weight an d volume of methanol car are smaller than gasoline vehicles, and higher speed, so the methanol car than gasoline vehicles speed is fast, more violence. Compared to the tram, methanol has more momentum and simulation engine.

Because the oil needle set-up is more complicated, methanol is not only expensive, but also inconvenient to buy and methanol engine life without long life as petrol cars and trams so the recommended novice firstly is trolley and gasoline vehicles, to have certain experience in RC model before thinking of methanol car.
 
Summary: By comparing, I believe you can have a further understanding to choose RC car power, hope everybody can have fun on RC car!
Source: http://www.genstattu.com/blog/contrast-to-select-different-of-rc-car-power/

A few factors that influence the lipo battery lifespan

Is it necessary to activate the new Lipo battery?

For sure. Actually, the activation is processed by the factory, and the users are not capable of activating it. The real process for activating is as follows: filling the electrolyte, seal, formation, charging at constant voltage, discharging (for several cycles). Then, the electrode is fully immersed with the electrolyte until the capacity has reached the standard. That is the process for activating batteries-capacity grading. That is to say, when the lipo battery is sent to the consumers, it has been activated. Besides, some of the activations should be processed in an open status, and the RC car batteries lipo are sealed after activation. How to activate the car batteries on your own unless you have the equipment for producing cells.

Why are the fully charging and discharging recommended for the first three times?

In fact, there should be a few days or months to deliver the battery from factory to the users, so the cell material would be blunt. At this time, the capacity is below the normal value, and service time will be shortened. However, the lipo-battery is easy to activate. Only by cycling the power for three to five times could the capacity be restored to normal value. According to its characteristic, the lipo-battery does not have the memory, so no special measures or devices should be used to activation.

Charging for long time is dangerous

Charging for long time could result in overcharging. After fully-charged, the battery will stop charging. And, the charger for nickel battery would not charge for 10 or more hours like the "stream". In other words, there is no use to connect the fully-charged battery with the charger.

Lifespan and factors

lipo battery could be charged and discharged for 300-500 times,such as Gens ace 7.4v lipo battery. It is better to partially discharge the lipo battery rather than fully discharge. Once the battery is off the production line, the lifespan for battery begins to count down, no matter whether you use it or not. The increase of internal resistance, caused by the oxidation, gives rise to the decline of the capacity. Finally, the electrolyzer will reach a point that though the batteries are fully charged, it cannot release the power.

Factor #1# the depth of discharging and the times of charging

The available times of charging* the depth of discharging=times of total charging period. The more available times of total charging period, the more lifespan the battery has. That is, the available times of charging *depth of discharging=actual battery lifespan (ignore other factors) The more deeply the battery discharges, the less available times of charging.

Factor #2# over-charging, over-discharging and the large current

It should be prohibited to over charge the battery, any forms of over charging will result in the damage even explosion.

Factor #3# extreme hot or cold condition

The temperature exerts great influence on the lifespan of lipo-battery. The condition under freezing point could burn up the electronic devices immediately. And, the high temperature will reduce the batteries' capacity.

Factor #4#being fully-charged or no power for long time

Both low and high battery would negatively influence the lipo battery. The times of charging symbolized on the signal of electrical devices or battery are tested under the 80% power. Low battery or no energy will increase the resistance of the internal battery, so reduce the capacity of battery. The best condition of lipo-battery is the middle capacity, and it will reach the longest lifespan.
Source:http://www.genstattu.com/blog/a-few-factors-that-influence-the-lipo-battery-lifespan/

Can Gasoline Engines Replace UAV Batteries to extend UAV flight time?

Flight time has been a very vexing problem for most of UAV hobbyists. Generally speaking, the flight time for the high end consumer-level UAV is about 25mins; however, the flight time of UAVs for commercial use is not that long.

Many companies desire longer flight time for their own UAVs and are depressed by a constant replacement and charging for the batteries. Most UAVs are powered by the high-end lipo batteries, also regarded as the low energy density battery. That is to say, as to its voltage, the volume of this battery should not be that big. It is unrealistic get a longer flight time for the UAVs by just adding the batteries packs.

After the research and development, Pegasus has come out with a solution of using gasoline instead of using batteries. This company is now having a beta test for the GE-30RangeExtender system, which is a gas-electric hybrid that can be inserted in the battery terminals for most of the commercial- level UAVs. The flight time for the current UAVs is lengthened to 2 hours owing to this system, and it is possible that this system would be used for the bigger models in the future.

The gasoline can bring more energy than the battery according to energy density. A record from the American Institute of Physics shows that the energy of a car filled with gasoline equals to the energy that a thousand dynamite rods can make, and the energy density of the gasoline is 50 times higher than the UAV battery.

In essence, RangeExtender is the two-stroke internal combustion engine that fits for the UAVs though it is not as easy as it sounds. You can not just install the rotors on the grass trimmer to make it fly, or maybe someone has already done this before. Of course, you can make an UAV that looks like a grass trimmer, but that would be a different story.

RangeExtender is a system of gas-electric hybrid made from Pegasus, which can generate appropriate power to wheels, but it is not equipped with electric engine and gas engine as the hybrid electric. RangeExtender is not just mechanically integrated with the UAV but a micro edition of the power system used by large ships. It converts the energy powered by the gas engine into electric power and provides power for the electric motor to make the propellers work.

A good news is that RangeExtender can be purchased in this late summer. RangeExtender would be used by large commercial UAVs. Till now, Pegasus has not mentioned the price, but it has put forward by the MattMcRoberts that RangeExtender would cost far less than $12000 of an annual expense of the batteries for most of commercial UAV operators.
Pegasus is not the first company who's tried to solve the existing problems for the UAV battery. TopFlightTechnologie from Massachusetts has tried to use generator, powered by gas engine, to charge for the UAV batteries. The hydrogen fuel cell provided by the UK IntelligentEnergy can also extend 2 hours' flight time for the UAVs just as the Pegasus system.

Of course, nobody gets cheered by the gas-powered UAVS besides the operators who use commercial UAVs to survey the petrol pipeline or mine. According to the record of US Energy Information Administration, a gallon of petrol could produce nearly 20 pounds of carbon dioxide. The gasoline, maybe, can not replace the UAV batteries but it is a new step forward towards the UAV flight time issues. Grepow is now achieving great success in UAV batteries, and many UAV pilots are getting impressed by its new smart battery-Tattu battery. You may also take a look at the tattu batteries if you're interested in it.

The Funny of Play RC Car games

I have access to the RC cars by accident and was deeply attracted by their glamour. This is a set of equipment with individual character appearance, high-tech configuration, super running speed, and high degree of simulation. Although it is not the carrier of my soul, it is a way of bailment of my dreams and memories.

1. What RC exactly is?

RC is the abbreviation of Radio Control. (Literally, it means remote Control or Radio Control.) RC covers a pretty wide range, such as RC cars, airplane models, boat models, and some military drones and battle droids. But we need to emphasis that children's class remote control toys are not RC models.

2.What are the RC models?

RC models in general can be divided into the RC cars, RC airplane model, RC boats, RC robot and etc,they need strong power of 5000mah lipo battery,like Gens ace &Tattu.

The RC cars, we introduce today, is easier to play, compared to the RC airplane model and RC boats. Because RC cars have no requirement for the airspace and water area, and the requirement for ground and site is relatively low. That is to say, as long as there is available ground, you can play your RC cars.

3. What are the differences between the RC model cars and RC toy cars?

Tens dollar remote control cars in the market is only kind of remote control toys, but not RC model cars. They have obvious differences with hundreds or thousands dollars RC model cars:
1>The running distance. RC model cars, belongs to the remote control, can run at least 100m; but remote control toy cars for children can run maximum about 20 meters.

2>The control modes are quite different. RC model cars is "proportion type manipulation". What is "proportion of manipulation"? For example, we turn an angle of 15 degrees, and the wheels on the RC cars also rotate an angle of 15 degrees correspondingly; The accelerator trigger on the remote control is pulled 30%, then the power output in the RC cars is also 30%. But the RC toy cars adopt "switch mode", which means that we cannot do precise instructions, and the steering and speed are only in "0%" or "100%" two states.

3>The mechanical principle and internal structure are also different. The RC model cars is the miniature versions of various real racing cars, so they have the same mechanical principle, suspension system, similar manipulate mode and amazing speed as super racing cars. But the ordinary RC toy cars do not have these characteristics.

4>The RC model cars can be assembled, maintained, refitted to update their configuration, but the ordinary RC toy cars can not be assembled, refitted or maintained in large.

4. What's the fun for playing the RC model cars?

If you are a newbie, my answer would be that it can reach a starting speed as the a real racing car, and you can work with many actions like climbing, cross-country, drifting, tumbling and snapping.

For professional hobbyists, the biggest pleasure comes from the assembling, refitting, maintaining and studying the RC cars, share tips with teammates and the most, manipulating and conquer on the competitions.

5. How many kinds of power do RC model cars have?

The RC model cars have two main types of power: fuel and electric power. Fuel power RC cars use internal combustion engine as power output, the other use RC car batteries lipo /electric motor as power output. There are mainly 2 fuel power; one is gasoline, but not only gasoline, which is a mixture of gasoline and the 2-stroke gasoline engine oil; another is the synthesis of methanol. RC cars, powered by battery/electric motor, will generally use lipo battery or nickel metal hydride battery. If use electric power properly and maintain carefully, it can be recharged and used for a long time. When compared the gasoline and methanol, there will be limit to buy gasoline from the gas station. In contrast, though the methanol mixing fuel can easily access, it would be relatively complex to use integrated methanol cars.

6.The price of RC model cars

The price of RC model car ranges from a few hundreds to thousands dollar. For the newbies who come into this area for the first time, I recommend the price from $350-$500, like the HPI, Horizon Hobby and the many high-end imported brands from US or Europe, which have good quality for entry-level. Some domestic brands also sell some fake high-end foreign brands, and Taiwan also has some high performance brands.
I would not recommend to buy low-price RC cars, because RC cars are high loss products and commonly work in high speed and violent movement. The components quality would not be ensured in low price. At the same time, I will not recommend you to spend 10000dollar or more to play and have fun in the very beginning. The fun of playing RC model cars is in the gradual process. Your skill will be updated according to the accumulation of knowledge and technology.

6 WAYS TO EXTEND DRONE BATTERY LIFE

TIP #1: KNOW EXACTLY HOW AND WHEN TO CHARGE YOUR BATTERY

Charging is the Key to extend the battery's lifespan. For getting the best flight time possible, charge your UAV battery right before you're about to use it. "Freshly" charged batteries usually perform better than ones charged several days beforehand. Besides, when you are not about to fly, charge it only 60% of the way and store it in a safe place instead of fully charge it. And, NEVER OVERCHARGE. If the batteries are charging overly, they may ignite or even explode. It is dangerous and also detrimental to the battery's lifespan.

TIP #2: DON'T ALLOW YOUR BATTERY TO COMPLETELY DRAIN ITSELF

Each time that you do this, you slowly wear down the lifespan of the battery. It is recommended that you fly your quad copter with no less than 3.5V. Once it dips to 3.5V, stop flying and give the battery a rest, then charge it for use next time.

TIP #3: AVOID THE STRONG WIND

When you fly your quadcopter in strong wind, your motors have to produce more thrust to maintain the flight, which requires more power conducted by batteries. Therefore, it is highly recommended to fly in a good weather or low wind.

TIP #4: CHOOSE A CONSERVATIVE FLIGHT MODE

Nearly all RC drones come with various "Flight Modes" that you can switch by simply putting a button. The aggressive mode increases transmitter sensitivity and consume more electricity. Conversely, flying more conservatively consumes the power more slowly with a lower sensitivity. Try to fly conservatively when you are not racing!

TIP #5: LIGHTENING YOUR EQUIPMENT

Since the battery discharges faster while recording and shooting, you can turn on the camera and even remove the camera (if it is detachable) to slow down the pace of discharging. This may be helpful of prolong the battery's lifespan.

TIP #6: BUY EXTRA BATTERIES!

The flyers are now purchasing more batteries, for use or for backup, to maintain a long flight time for their drone. Generally, spare batteries can be accessible easily and can be purchased on sites like:
genstattu.com
These tips can make sense in extending the battery's lifetime, but it is unrealistic to double the flight time. SO, taking good care of the gens ace 2s lipo battery and using it properly.
Source:http://www.genstattu.com/blog/6-ways-to-extend-drone-battery-life/

How to Choose the Best FPV LiPo Battery

FPV is more and more popular now among many RC hobbists and there are more and more newbies come into this hobby. Many new beginners write to us about how to begin and what are the most important point when flying FPV. Among all the questions, the best battery for FPV flight is very often asked.
Many Videos are now showing a battery that could be the best LiPo battery for long distance FPV flying. With the aide of FVP goggles, flying FPV is pretty exciting and real than any other RC drones or airplanes because of the goggles to see the real view in the first sight. Certainly, the spetacular speed of FPV is core for enjoying the FPV flight.

Usually the limiting component on an FPV aircraft for flight is the battery. In the past, I have used about 1300mAh, 45C and 3/4S for FPV, however, Tattu is the first UAV LiPo battery released Tattu 75C 4S 1300mAh LiPo Pack Battery, which get a very good popularity among clients. Certainly, Tattu have many batteries, but this time we will take this amazing one to see why it is so attractive.

                            Tattu 4S 1300 mAh 75C Li-Po Pack Battery

The 4S 14.8V 75c 1300mAh LiPO battery pack is a great choice for many small UAVs which require high discharge rates. This battery packs a ton of power in a compact form factor, giving you the flight time and power your need on your craft.

And the advantages is that Tattu LiPos are packed with vibration-proof & fire-proof material and luxury battery box. Make sure to get your battery in perfect condition. An automatic procedure & Computer system battery cell matching process ensures the batteries stability and quality. Different from the original Gens Ace series, TATTU is specialized for the UAV & UAS market, with their industrial quality (since Gens Ace is based on the Hobby area), their slogan "less is more", "more" means more flight time, more enjoyment, and more satisfaction , and "less" means less weight, simple design. Tattu always develops their products according to these 2 directions giving you a high quality battery.

Tattu's Stable automatic stacking technology enables single cell capacities of 1300mAh. This higher capacity than comparable size packs and without memory effect.

Tattu FPV battery provide high quality, reliable power for your FPV Nemesis 240 Mini, Skylark M4-FPV250, Mini Shredder 200, INDY250 PLUS, HOVERSHIP MHQ2(270), ZMR 250, Emax Nighthawk 250, Mini H, QAV250, QAV180/210, Danaus, Vortex 285, Mini H, FLIP FPV FRAME, Emax Nighthawk 250, ZMR 250, HOVERSHIP MHQ2, MOJO 280, etc.

Choose Tattu FPV battery, you will be surprised.More power, more flight time, and less weight.
Source: http://www.genstattu.com/blog/how-to-choose-the-best-fpv-lipo-battery/