The difference between Single Rotor drone and Helicopter

When it comes to UAV, the picture of quadcopter strikes everyone, but is that only the quadcopter reliable? Gens ACE- 3s 1300mah lipo, specialized in providing the battery for UAV and RC model and seeing numerous UAVs, will introduce you a new and novel air vehicle! Recently, foreign press reported that American researchers created a UAV with only one rotor. This UAV adopt the asymmetrical design, and more importantly, the only part of it which could move is a single propeller.
This UAV is called single channel rotor aircraft. The whole aircraft is controlled by a simple propeller, with a propeller that can move and without flap, hinge, aileron and even other actuator and controller. Although its mechanically design is simple, the electronic programming is advanced which is precise enough to travel in the air stably.

Do you think there is no difference between it and one-rotor helicopter?

No, they are considerably different.
In the field of UAVs, the most common aircrafts are divided into fixed-wing, helicopter and multi-rotors (the mainstream in the multi-rotors is quadcopter.). This aircraft is transform the multi-rotors into single-rotor, which has huge difference from helicopter.
A few years ago, helicopter and fixed-wing just take the most part of UAVs, almost no multi-rotors. However, the release of DJI Phantom broke this dominance. One of the most important reasons is that Phantom dramatically reduce the difficulty and cost of aerial photo. It is applauded by the market and become the best-seller product so far. In the following two years, the originality and design of multi-rotor aircraft come out endlessly.
Another crucial reason is that the reliability of the machine is considerable, which is also the main difference between multi-rotors and helicopters.
Compared with the multi-rotors UAVs, the helicopter should consist of thousands of movable machinery parts. The abrasion, during the fight, causes the reliability decline. Not to mention the high cost of trouble-shooting of such unstable elements, threatening the people's health is possible. Conversely, there is no movable components on the multi-rotors. Its reliability depends on the reliability of the brushless motor, so the reliability is high. The helicopter has more complex structure and more movable machinery parts.

Besides, helicopters usually need stroke oar and a pair of rotor, towards opposite direction, to keep the balance, and the single-rotor UVAs, however, need only one rotor, which adopt the asymmetrical and unbalanced body design to ensure the flight and the controllability. Actually, tens of years ago, the aircraft operated by skilled pilots included only two movable components-the rotor and rudder. The "single channel rotor aircraft" proved that only one movable part for the remote aircraft is enough. However, compared with the helicopter and quadcopter, the calculation programming of the "single channel rotor aircraft" is much more simple. In other words, to let it launch, we should apply the correct method, and the success rate depends on the manual operation. What is more, its sensitivity of operation is comparatively weak. Because when it launches, it has to rotate continuously to keep balance, it is not competent for aerial photograph and other tasks.
Although there are many sorts of UAVs, the battery is vital. Gens ACE-14.8v lipo battery, specialized in providing the battery for UAV and RC model for many years, is worth being recommended.
Source: http://www.genstattu.com/blog/the-difference-between-single-rotor-drone-and-helicopter/

Ways to eradicate the battery memory impact

What's the battery memory result?

If the battery is nickel cadmium battery, long-term will not be complete charge and discharge,it easy to leave a mark within the battery, the battery capability, this phenomenon is called battery memory effect.That mean, it appears that battery memory consumer daily charge and discharge charge as well as mode, time is tough to modify this kind of mode, can no longer do significantly charging or discharging.Lithium-ion batteries, no such result.

The reason behind the battery memory result

Resulting from adverse really sintering form in the traditional system, cadmium coarser grains, if nickel cadmium battery recharge in advance of they may be totally discharge, cadmium grain effortlessly gathered into pieces and produce a 2s 7.4v lipo battery discharge kind secondary discharge platform.

Battery will retailer the discharge platform and it since the finish from the discharge within the subsequent cycle, despite the fact that the capability of the battery itself could be make the battery discharge to your decrease platform.During the procedure of following the discharge of battery will only do not forget that lower capability.Exactly the same in each use, any incomplete discharge will deepen this effect, make the capability with the battery is reduced.

The best way to do away with the battery memory result?

To remove the effect, there are two techniques, 1 will be to use tiny latest depth of discharge (including with 0.one C to 0 v) 1 is to use big latest charge and discharge (e.g., one C) several times.

In practice, the method of elimination of memory results have strict specs and an operating method. Improper operation will be counterproductive.

For nickel cadmium battery, the upkeep of usual is deep discharge on the standard basis: the common use to get a month (or thirty instances circulation) on the deep discharge (discharge to 1.0 V/each section, named the work out), popular use is usually to use photovoltaic cells or make use of the signifies which include shutdown can lower the formation of the memory effect, but this is not training, since the instrument (including cell phone) is not employed 1.0 V/only to flip it off everyday, has to be special gear or line to finish the do the job, but luckily a lot of nickel cadmium battery charger with this particular perform.

For no nickel cadmium 7.4v lipo battery to training for any extended time, as the cumulative memory impact, cannot reply in training capacity, you then will ought to deeper discharge (termed a recondition), this is often an incredibly small present to get a long time for every area to 0.4 V battery discharge of the procedure, want specialist equipment.

For nickel metal hydride batteries, exercise within the frequency of about as soon as each three months can properly alleviate the memory result. Since the cycle daily life of nimh battery is lower than that of nickel cadmium battery, with little recondition this strategy.

Suggestion one: each and every time there is no really need to charge the 14.8v lipo battery just before discharge, and it really is hazardous, for the reason that useless shorten the lifestyle with the battery.

Suggestion two: use a resistor connect would be the cathode with the battery discharge is just not desirable, cannot management recent, easy to 0 v, even result in series of battery cell polarity reversal

Battery-The modern life necessity

An electric?battery?is an energy conversion and storage devices?that convert stored chemical energy into electrical energy.?

With the fast developed science and technology, improvement of human living standards, more and more variety of new features, high-tech electronic products are widely used to humans.Correspondingly,it will promote the arising of all kinds of different appearance and performance batteries.

The big brand such as Nanfu battery,GP battery,Panasonic and so on are known by people.Another 2 big brands have attracted worldwide attention with their excellent quality,innovative style and performance-Grepow and ATL.

Shenzhen Grepow Battery Co.,Ltd is a professional R&D,design,manufacture and selling company.From the establishing year 1998,Grepow has changed greatly in its development.
Grepow manufactured and supplied Ni-Mh battery from 1998 in a large quantity with its stable quality,reasonable price and perfect service.It is a kind of no-pollution,no cadmium new green energy battery widely used in areas like civil life,cars,toys, telecommunication and so on. We recommend NiMH for applications where a device has already been designed to use AA type batteries.

This batteries,?however,?have a short?lifespan,heavy,low discharge rate,and low voltage characteristics,so Grepow update to manufacture 2200ml Li-po battery from about 2009.

With a professional R&D team,and extensive experience in manufacturing battery, excellent technical documentation and advanced processing management system,Grepow’s 2 big brand Li-po battery-Gens Ace and Tattu are greatly known and used in RC ans UAV.which ensures battery’s consistency and stability in mass production.

Gens Ace batteries are very useful for embedded electronics. They offer the highest density readily available on the market. Because cell phones predominantly use this battery type, they are easy to find for reasonable prices. They?do?require special charging, so be sure to use the right charger for the job.

Gens Ace LiPo batteries cell has a?nominal voltage of 3.7V. When fully charged you will see nearly 4.2V on the cell but it will quickly drop to 3.7V under normal use. When depleted, the cell will be around 3V. This means your project will need to handle various voltages if you are running directly from a cell. If you need 5V you will need to combine two LiPos in series to create a 7.4V pack（2s 7.4v lipo battery） and regulate down to 5V.

We recommend Gens Ace LiPo for nearly every portable application like helicopter,RC,jump starter and so on.They are fairly robust and when used safely provide a great power source.
DJI-the world market leader in easy-to-fly drones and aerial photography systems,adopts Grepow’s Tattu battery to control its famous UAV.With the advantage of professional R&D, humanized?service,mass production capacity,amzing explosive power,Tattu is widely used by other big brand GoPro,Panasonic,LG and so on.

In the future,Grepow’s Tattu will be used in more fields and Grepow will pay attention and be allergic to more potential development trend and supply better bettery or other amzing products to the world.