The RC Helicopter

Leonardo da Vinci created on paper, at least with the first helicopter, and the very first piloted helicopter was invented by Paul Cornu in 1907, however, this design was not successful. Another Frenchman, Etienne Oehmichen built and flew a helicopter 1 kilometer in 1924. An early practical helicopter that flew for a decent distance was the German Focke-Wulf Fw 61 invented by an unknown inventor. (

Igor Sikorsky is considered to be the “father” of helicopters not because he invented the first. He is called that because he invented the first successful helicopter, upon which future designs were based.

So where when did the RC model helicopter begin? Well I do not know who is credited with the First RC Model Helicopter, but it was in the 70’s that the RC Helicopter revolution really began.

For the most part, they were all Nitro powered, using standard Model Airplane engines (40 and .60 size) and 4-6 channel airplane radios.

Using a 4 channel radio to control the 5 functions of a model helicopter was quit unique in it challenges and results. What they did was used a “Y” connector for the throttle and pitch servo. Then you mechanically set up the throttle and pitch curve on the heli.

In the ‘70’s there were 2 basic type of Helis, the teetering head, fixed pitch and soon after came the collective pitch. And just like today, some had direct drive tail rotors systems while other went with belt drive.

The first of these Heli’s where hard to fly, had very poor control and lacked any tail gyros, radio mixing or any of the modern connivances that make today’s Helis fly so well and easy. We even had to mechanically set the lead/lag of the main blades, until we just left off 2 of the 3 bolts on the main blades and let them seek there our lead/lag.

But the RC Model helicopter matured quickly and by the ‘80’s the RC Model Helicopter could fly quite nicely, the radio manufacturers started making good Helicopter Radios, the Helicopters themselves had the modern style Bell/Hiller control system, single point Main Blade attachment for self Lead/Lag and gyros became common place. Direct drive or belt drive tail rotors still were used.

In the ‘80’s and ‘90’s the Far East began to create beautiful Models of all sizes. And the “Ready To Fly” models became common place. The race was one and the things they started doing with the RC helicopter was only limited by ones imagination.

I would think that this century is know as the “Age of Electrics” and today you can get an Electric Helicopter in any size, (small enough to fix it your hand) to 40-60 size.

And can they ever fly, they are competitive with your fuel choppers, only quiet and no smoke, no starting equipment needed and are fully 3D capable.

So if you’re flying interest lean toward the rotary wings birds, check out the new electrics. They make then so simple today that you can buy one, open the box, and charge the batteries and fly, even if you have never flown before!

Bob Robeson


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LONGING LY-250: RC Racing Drone With Optional Upgrade Parts

For the RC drone enthusiasts, the racing drone is wonderful because it helps improve the flight skills. In this article, I will show you an excellent product LONGING LY-250, which features optional upgrade parts. And the article involves four parts, including design, feature, configuration and specifications.


As the racing drone, the design of LONGING LY-250 initially comes from 4WD Fighter, which features easy upgrade and maintenance. It shapes like the bee and it has the red body color. As a result, it also has a nickname LY250 Red Bee. Moreover, it has a hollowed-out body design, which takes the advantages of reducing body weight, providing lift power efficiently and improving stability. With the creative durable base frame module, it offers supreme protection on important parts from the crash.


Exactly, the obvious feature of this racing drone is optional upgrade parts. That is to say, you can choose your favorite airplane parts to build your own racing drone. By the way, the optional parts include battery, canopy, motor, propeller, base frame module and camera module.

Besides, it comes with LED buzzer with an alarming system. The buzzer will sound to alert to avoid any injury occurring. Considering the flight skills, it supports three flight modes: self-stabilization mode, 3D flight mode and full manual mode.


In terms of the configuration, I will show you two parts, the battery and camera. Both of them are the standard configuration.

To begin with, it is configured with 7.4V 2S safe Li-ion 18650 battery, which has a standard capacity of 2,500mAh. Environmentally friendly, it offers recyclable use. Huge capacity battery supports nearly 15 minutes flight time.

Moreover, it comes with a small size camera with 648 x 488 pixels resolution. It features FOV 120 degree, 1.8 focal length and 60fps /NTSC transmission rate. And it supports IR Infrared Ray.


Weight (including battery and propellers): 398 g

Diagonal Size: 250 mm

Max Speed: 110 km/h

Max Service Ceiling Above Sea Level: 6000m

Default altitude limit: 120 m above takeoff point

Operating Temperature: -15°C to 40°C

Motor: 2204 brushless 2300kv

Battery: 2500 mAh Li-ion smart battery

Camera resolution: 648 x 488 pixels

Lens: FOV120°IR Infrared Ray Jamming-proof Filter


Generally speaking, LONGING LY-250 is an outstanding product. If you are searching for the DIY racing drone, you could not miss it. I promise that you will like it.




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Turning an HP DPS800GB power supply into an RC Bench Power Supply. Your cheapest power supply option

You can now buy these already wired:
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This is the charger that will be reviewed soon that needed more power:

The original information to do this was found here:

I needed more power to power my Lipo chargers. My 5Amp power supply was not able to do it any more. Being a cheapskate I didn’t want to spend a lot of money on it so I found what I think is the cheapest option that will supply all the power I ever need. This power supply goes by a lot of different names, DPS800GB, 403781-001 and 379123-001. This process will work for any of them. They are exactly the same.

If you want to get started in RC drones this is my current recommendation:

Eachine E010S Camera Drone:
Make sure you pick the receiver that matches your radio
and extra batteries
Extra 45C E010 Batteries:

If you need a radio get one of these:

Beginner Flysky Good Radio:
Expert FrSky GREAT Radio:

Get one of these googles:

Entry Level Budget Goggles:
Eachine Upgrade Goggles with DVR and Diversity: (These are the best option)
Aomway Commander Goggles with DVR, Diversity and Headtracker:

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Touch Screen RC Charger? The Easiest to use Charger Ever? Microzone M200!

Have you ever struggled through pressing buttons on your charger 25 times just to set the # of cells,, amps, modes etc only to be frustrated? Check out the Microzone M200 Soft Touch Professional Charging System! 200W of power and the easiest charger to ever come to our RC industry! Self intuitive, clear touch buttons on the 3.5″ LCD Screen makes navigating through each and every parameter fast and easy with no confusion! Included is a 4 Port Paraboard for charging up to 4 lipos of the same mAh at the same time! Be sure to stay tuned to the full tutorial with Pete!

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Hyper Charger 2016 Chevy Camaro SS RC Car Unboxing (Part 1)

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The 2016 Chevy Canaro SS Hyper Charger is a radio controlled car that is licensed from Chevrolet. That means that the detail on these RC toys is quite impressive for a toy.

These RC cars come with a built in lithium ion battery that comes with a USB plug that can be plugged into any laptop or computer that has a USB port for the purpose of charging the car.

The Hyper Charger also has full RC functionality in that it can go forward and reverse while being able to steer both left and right. There is also a neat little turbo button on top of the controller that is designed to give your RC vehicle a bit more speed.

The controller itself runs off of two AA batteries and it uses the 2.4GHz frequency to control the car. Up to 24 of these cars can be driven in the same area as well which is fun! Enjoy!


[TiG] Review: Tenergy Universal Smart Charger – RC / Airsoft / 6-12V

Today I review my trusty Tenergy Smart Charger. It charges NiCad & NiMH batteries anywhere from 6 to 12 volts and has an auto shutoff when the batteries are done.
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[Note] If you’re looking for a charger for a Lithium Polymer, or LiPo, you will need a balance charger, which makes sure the LiPo doesn’t over or undercharge and explode.

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HTRC H150AC/DC DUO (2x150W) Multi Charger with built-in power supply (HT-0093)

8% Off – Toysho

HTRC H150AC/DC DUO (2x150W) Multi Charger with built-in power supply
AC/DC Input Professional Balance Charger/Discharger
MODEL: HT-0093

Also you can choose other RC products:
FPV and etc.:
(All links checked 22 Mar 2018)

H150AC/DC Duo is a multi charger, supports charge, discharge, storage and balance charge functions. With two independent output, it can charge 2 batteries ar the same time. Its 1602 LCD screen displays the cell voltage. It can automatic identification of battery sections.

Brand name: HTRC
Item number: H150 AC/DC DOU
Charge power: 150W*2
Discharge power: 20W*2
Charge current range: 0.1-15A*2
Discharge current range: 0.1-5A*2
Current drain for balancing: 500mA/cell
Lilon/LiPo/LiFe/LiHV cell count: 1-6cells*2
NiCd/ NiMH/ battery cell count: 1-15cells*2
Pb battery voltage: 2-20V*2
Smart Battery: Ⅰ/ Ⅱ/ Ⅲ *2

Weight of HTRC H150: 1kg 102g
Dimensions: L x W x H: 195 x 143 x 70mm

Two 1602 LCD displays
Waterproof key film
Two independent output ports
Two Ext. Temp. sockets (Futaba 3Pin socket) for connecting Sensors
Two Balance ports (6S) for connecting Adapter Boards
Two PC links for Firmware update

AC Input: 100-240V
DC Input: 11-28V
USB out: 5V, 2.1A
Two FANs

* Two independent output, the charger charge fast, you get twice result with half effort.
* Employs an individual-cell-voltage balance. It isn’t necessaty to connect an external balancer for balance charging.
* Automatic Charging Current Limit, Capacity Limit, Temperature Threshold, Processing Time Limit.
* User can check battery’s total voltage. It can meter the internal resistance and view the voltage of each cell.
* Firmware Update.
* The charger allows users to change the end voltage( for expert user only).

Li-Po (1-6cell): 3.7-22.2V
Li-Fe (1-6cell): 3.3-19.8V
Li-Ion (1-6cell): 3.6-21.6V
LiHV (1-6cell): 3.8-22.8V
Ni-MH (1-15cell): 1.2-18V
Ni-Cd (1-15cell): 1.2-18V
PB (1-10cell): 2-20V

Package Included:
1 x HTRC H150 DUO Multi Charger with built-in power supply
1 x AC cord
2 x Extra cables (with XT60 and Dean (T) connectors)
1 x Extra cable (with XT60 connector)
2 x Adapter Board SET
1 x Instruction manual

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HTRC H150 AC/DC DOU 2x150W Professional Lipo Battery Balance Charger Discharger


DJI Mavic 2 Multiple Battery Charger By RC Geek

RCstyle Compatible 5 in 1 Rapid Battery Charger Smart Multi Battery Intelligent Charging Hub for DJI Mavic 2 Pro/Zoom 3 Batteries, 2 USB Ports

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Go Professional Cases Compatible/Replacement for Mavic 2 Pro/Zoom Case (GPC-DJI-MAV-2)

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About this video:
In this video Bill from Bill The Drone Reviewer tells us about DJI Mavic 2 Multiple Battery Charger By RC Geek. Bill shows us the DJI Mavic 2 Multiple Battery Charger By RC Geek charge three DJI Mavic 2 batteries and the DJI Mavic 2 Remote, how long it took to charge, and his overall impressions of the charger.

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