Black Talon FPV Quadcopter

Black Talon FPV Quad is a RC drone for indoor flight, it has a good comprehensive proerty, but its flight time is too short.The drone has gradually become a mainstream digital gadgets, not only take the aerial photography, surveying and other specialized work, even to the competitive direction. For ordinary people, the UAV can also be a great relaxation activities, especially the cheap, easy to use model.

Black Talon FPV Quad is a four-axis compact indoor drone, its price is about $ 139, it iVery suitable for use at home. In addition, it also equipped with a camera, to take pictures and video,Now let’s take a  look at their experiences below.

Black Talon FPV Quad has black body, overall is very small, propeller parts has bezel with security, can easily fly in complex family environments. It uses WIFI signals for remote control, frequency is 5.8GHz, it has tested their disturbance is very good, do not conflict with other wireless devices in the home, and the latency is very low.

Black Talon FPV Quad with a wireless controller that handles look like the Xbox One handle, also has a monitor LCD screen to monitor flight. In addition, if you don’t like the RS button on the handle, you can also replace the lever, it is very flexible.

About the battery, Black Talon FPV Quad equipment with a 520mAh lipo battery, it provides about 5-6 minutes flight times, it seemed not very good. Of course, users can buy some other more fast batteries to replace it, I recommend pilots can choose the Tattu fpv batteries. Tattu 450mAh 11.1V 75C 3S1P Lipo Battery and Tattu 850mAh 11.1V 45C 3S1P Lipo Battery is very useful to Black Talon FPV Quad, it can last more long, flies more long time .

Black Talon FPV Quad has three sensitivity settings, medium and high settings of the more suitable for outdoor use, after all, need to take into account wind speed cause yaw condition. When used indoors, Black Talon FPV Quad signal penetration is excellent, even flying into the basement in the single-family homes and almost no lag, LCD monitors are also very easy to use.

Due to wing has designs of crash, even hit the shelves, cabinets and also not so big problem, airborne and pressure sensor provides excellent flight stability, no one in the small indoor four-axis machine is still relatively rare. Of course, 5-6 minute range is its greatest weakness, maybe you just fly enough, need to replace the battery.

Black Talon FPV Quad is a comprehensive performance, value for money and it is very good in-room , flying and shooting are very satisfied, in addition to poor battery endurance.

Why do we choose lipo battery for our quadcopters?

Lipo, the full name is lithium polymer, today they are used in many places like in mobile phones, powerbanks and quadcopters. But why are quadcopters using lipo battery? Before answer this question, we should know What does quadcopter need and what’s the lipo battery?

Quadcopter has got more and more popular; quadcopter as a drone are also used in aerial photography and FPV Racing, so most aerial photography pilots hope their quadcopters can fly longer and FPV racers hope their quadcopter can fly fast. But a few years ago, all that was available to Radio Control enthusiasts were gasoline powered helicopters is the availability of LiPo batteries. Quadcopter is an incredibly inefficient device. If you want to fly longer, you need a larger battery, so you will find it is very funny: the heavier a quadcopter is, the more powerful its motors need to be. The more powerful the motors, the bigger batteries you need, the bigger batteries, the heavier – it goes in a circle, getting worse, each time around. the formula just doesn’t work unless you have a battery technology that is light enough.

Prior to LiPo batteries, there was no practical battery technology that could allow you to close the loop on that equation. LiPo (and LiIon) batteries have a very high energy to weight ratio, and also (important) a very high discharge rate.

The technology is such an improvement over all previous technologies (in these parameters) that the entire paradigm has turned. Now the sky is the limit and designers can think outside the box. Things like, how big a motor to lift a man, how big a battery to run it – yup – it’s doable. Quadcopter so you can “”ride on”! It means for the same weight of the batteries of different types say Lipo and lion (lithim ion) Lipo can store more power over other’s

So as in quadcopter weight is the greatest factor as it affects flight time, maneuverability and many other so minimizing the weight is the greatest concern and here the Lipo battery helps in doing that making it a great choice.

Also you need a high discharge rate as quadcopter motor needs a high current during flying Lipo have amazing discharge rate.

Source: http://rcfpvplane.com/why-is-a-lipo-battery-used-in-a-quadcopter/

The match between Quadcopter frame, lipo battery, motor and propeller size

This guide is mainly introduce the match between Quadcopter frame, lipo battery, quadcopter motor and propeller size; quadcopter frame materials and how to choose a quad frame. Quadcopter Frame — The structure that holds all the components together. One of the most important part of quadcopter is its frame because it supports motors and other electronics and prevents them from vibrations. You have to be very precise while making it. They need to be designed to be strong but also lightweight.

All parts of quadcopter will be hold on the frame, First , you can decide as to which frame should take? Then, look at the recommended setup of frame to buy other parts. Generally speaking, from 180 mm to 250 mm is most popular frames, more bigger one is from 280 mm to 800 mm even more.

Quadcopter frame, lipo battery, motor and propeller size matching table

Frame Size	Prop Size	Motor Size	Motor KV	Lipo battery
120 mm or smaller	3 inch	1104 – 1105	4000KV+	80-800mAh 1s/2s
150 mm – 160 mm	3-4 inch	1306 – 1407	3000KV+	600-900mAh 2s/3s
180 mm	4 inch	1806 – 2204	2600KV+	1000-1300mAh 3s/4s
210 mm	5 inch	2204 – 2206	2300KV-2700KV	1000-1300mAh 3s/4s
250 mm	6 inch	2204 – 2208	2000KV-2300KV	1300-1800mAh 3s/4s
330 mm – 350 mm	7-8 inch	2208 – 2212	1500KV-1600KV	2200-3200mah 3s/4s
450 mm – 500 mm	9-10 inch	2212 – 2216	800KV-1000KV	3300mAh 4s

Materials for quadcopter frame

Most available materials for the frame are:

• Carbon Fiber
• Aluminium
• Wood, such as Plywood or MDF (Medium-density fibreboard)
• Plastic & PVC
• Fiberglass

Carbon Fiber , One of the most common materials for multi-rotor frames is carbon fiber.It is lightweight but expensive. A great many of its physical properties are perfectly suited to the hobby. The only catch is that carbon fiber is known to block radio signals, which is obviously not ideal for a hobby that depends on multiple transmissions. That means you have to exercise a bit of care in how you place antennas on your craft. It can be used though, and is often. Just be aware that blocked signals are a possibility.

Wood , Build a frame with wood, It’s fast, low cost and does not require much effort. while not nearly as sexy as carbon fiber or fiberglass, is a very good material for this sort of thing. It’s cheap, RF transparent, takes brief structural overloads well, uses simple adhesives and dampens vibrations wonderfully.

Aluminium is widely used for frame, you need to buy parts and have some tools to cut or connect them together. Very lightweight and aluminum can transmit vibration quite well. Aluminum is easy to fabricate and can often be bent back into shape after crashes.
Plastic & PVC , Frame usually be 3D printed with plastic, This material is lightweight, cheap, and perhaps a bit to ugly for your new quadcopter frame as well as PVC.

Fiberglass , Another material you could consider is thin G-10 fiberglass sheet which is easily machinable. This is nice for the body area as it’s RF transparent. It also makes nice motor mounts.

Some tips for choosing quadcopter frame

Some quadcoper frame can be fine-tuned to suit your exact requirements. such as HobbyKing Switch FPV Quadcopter which By allowing you to choose between 380 and 320 mm wheelbase.
In our case we want to build quadcopter so make sure the angle between two arms is 90 degree and also check that arms are not twisted.
If your frame is too big compare to your power setup (motor-prop, esc , battery) it will add extra weight while if it’s too small props will fight with each other.