Information Articles

Brushless motors have almost completely replaced brushed motors. Their superior power and efficiency make them the obvious choice for powering your RC equipment.  Here’s what you need to know to use them, and some helpful info on how they work.

Brushless Motor Benefits

Before going into how brushless motors work, here’s why they’re useful:

• More Efficient – Brushless motors are much more efficient than conventional brushed motors. This efficiency has been measured to be between 85% to 95% better than brushed motors.
• Less electrical energy is wasted as heat,and more is used to do useful work.
• Reduced Noise – Brushless motors have fewer mechanical parts than brushed motors, so they emit less sound.
• Longer Lifetime – Fewer moving parts are in mechanical contact than in brushed motors, reducing wear.
• Reduced EM Interference – Brushless motors emit less energy as electromagnetic (EM) waves than brushed motors do. This contributes to their efficiency, and helps reduce radio interference.
• Torque, Voltage, And RPM Linearly Related – This means that the amount of torque or RPM produced by the motor divided by the voltage put in is a constant, making it easy to predict how much power you’re going to get.

How Brushless Motors Work

On a fundamental level, an electric motor’s only job is to convert electrical energy (like that provided by a battery) into mechanical energy, like the turning of a propeller or rotor blade. There are two basic facts that allow electric motors to work:

1. Electric and Magnetic Fields are Related - That is, every moving charge produces a magnetic field, and magnetic fields can produce electric charge.
2. Magnets Interact – Magnets will align when placed near to each other. All electric motors basically consist of two magnets. One of them is permanent, the other is a coil of wire that, when charged, becomes a magnet.

The motor is designed such that the magnetic fields produced by each of the magnets are always out of alignment, causing the motor axil to rotate. This is similar to what happens when you hold a permanent magnet to a compass – the compass swings position so that it lines up with the magnets field.

With the brushed motor design, the magnetic fields are kept out of alignment by turning on the different coils of wire that surround the motor axil in succession. Metal brushes make mechanical contact with the rotating axil and the contacts with each metal coil. As the axil rotates, the brushes contact different coils. The end result is that current flows through different coils at different times, constantly changing the magnetic field and rotating the motor shaft.

It’s here that we see the main problem with the brushed design: the contact between the motor coils and the brushes causes friction, which increases with speed. The metal coils wear out over time, and are prone to sparking. They can also ionize surrounding air, creating ozone. So how can we get around these issues? The answer lies in the brushless motor design. Instead of using mechanical brushes to turn on the various wire coils, an ESC (electronic speed controller) is used instead. The ESC switches the motor coils on or off rapidly, and is synchronized to the motor axil position.

Always look for an ESC with a capacity (measured in amps) greater than that of the motor you’re pairing it with.

Some Common Terms Explained

There are a number of special terms associated with brushless motors. Here are explanations for some of the most common:

• RPM – This is a measure of angular speed, or how fast something is rotating. A motor’s RPM is simply how fast it can rotate.
• KV Rating - Remember how we said that the relationship between voltage, torque, and RPM was linear for a brushless motor? It turns out that the number of RPM provided by each volt is the same, called  the KV number. The KV number’s useful because it let’s you figure  out how many volts you need to achieve a certain RPM, or vice versa.  For an example, a 980 KV motor powered by an 11.1 volt battery would  spin at 980 x 11.1 = 10878 RPM with no load. The KV rating always  assumes no load on the motor, so the actual RPM that your achieve  will be less than the one you calculate.
• Continuous / Burst Current – Continuous current measures how much current a motor can handle continuously, for an extended period of  time. Burst current measures how much current a motor can handle for a short amount of time, about a few seconds.
• Current Rating – This is the maximum current that a given motor can handle, measured in amps.
• Inrunner / Outrunner – These are the two major brushless motor  designs. An inrunner brushless motor has stationary coils, and a   rotating permanent magnet inside the coils on the motor shaft. An outrunner  brushless motor is the opposite, it has a rotating permanent   magnet, placed outside the stationary coils on the motor shaft . Outrunner motors have lower KV ratings, so they run at a lower speed with more torque. This could allow you to direct drive larger props without a gearbox. RC cars and boats tend to require inrunner brushless motors, rather than outrunners.
• Torque - Torque is a measure of angular force, or how much “push” a rotating shaft has.  Watt – This is a measure of power, or how fast energy is used.
• Volt – This measures electric potential, or how much “push” the electrons from a battery have. A greater voltage means that more   energy is being applied to a given amount of charge.

Choosing a Brushless Motor

Most airplane manufacturers will recommend certain brushless motors for different models. However, if this is not specified, a good starting point would be to check what other people are using locally,or search the web. We frequently visit RCGroups, RC Universe, and WattFlyer to see what the RC communities are using. If you have a brushed motor that you are replacing, choose a brushless motor that is the same physical size, and uses about the same wattage. To determine the wattage, multiply the current your old motor draws by the voltage it’s run at.

© Draganfly Innovations Inc.
Phone: 1-800-979-9794 / 306-955-9907
Email: info@rctoys.com
Web: www.rctoys.com
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The Blade MCX is a great RC helicopter, but a comprehensive guide on installing replacement parts seems hard to find. Here’s a list of all the parts that tend to break with crashes, and how to install replacements. Don’t feel bad about crashing your heli – even I’ve crashed a few times flying the blade MCX around the factory!

Replacing the Blade MCX RC Helicopter Flybar

The main flybar stabilizes the top rotor, and spins at a great speed. Because it’s built on top of the main rotors, it tends to fly off during a collision. Fortunately, it’s almost never damaged and most of the time can simply be snapped back into place. Should yours break for some reason, here’s how to install a replacement.

1. Check the Flybar For Damage – There’s very little that can actually break on the flybar, but check it against this picture to be sure it isn’t actually damaged.
2. Snap off The Flybar Linkage – You’ll find a small black linkage on the flybar (the plastic part, about 1 cm high, that dangles down freely), which connects to the top rotor blades. Snap it off gently, and place it somewhere where it won’t get lost.
3. Lift off the Flybar – The flybar is held between a black plastic clevis (the plastic holder on top of the rotor shaft). Gently spread the clevis apart using your fingers, and lift the flybar out.
4. Install the New Flybar - Slide the new flybars centre into the black plastic clevises between the top rotor blades. Line the plastic extrusions on the helicopter’s flybar up with the holes in the clevis and snap it into place. Do the same with the small linkage, snap it onto one of the plastic extrusions on the top rotor blades. It doesn’t matter which side of the top rotors you attach the linkage to.

Replacing the Blade MCX RC Helicopter Top Rotors

A severe crash can crack the top rotor blades. Repairing them with tape or glue isn’t a good idea, because it causes an imbalance that makes the helicopter hard to fly. Your best bet is to simply replace them – here’s how:

1. Unscrew The Rotor Blades – Using a small Philips head screwdriver, remove the two small screws holding the top rotor blades. Be sure to set the screws where they won’t get lost or roll away.
2. Remove The Rotor Blades – The top rotor blades lock into each other, gently pull them apart and remove them.
3. Install the New Rotor Blades – At the top of the rotor shaft, you’ll see two black holes protruding outwards. Place each rotor blade (right side up) into the shaft, and snap them together. It is possible to put the rotor blades in upside down – don’t do this. Make them look the same as the bottom rotor blades.
4. Re-install the Small Screws – Using a Philips head screwdriver, replace the two small screws that you removed earlier.

Replacing the Blade MCX RC Helicopter Landing Skid

The landing skid is one of the easiest Blade MCX parts to replace. It simply pulls off from the bottom of the helicopter fuselage. You don’t always have to replace a damaged landing skid, most of the time some thick or medium CA (super glue) can fix it perfectly.

1. Remove the Rechargeable Battery – You’ll need to hold on to the battery mount to remove the skid.
2. Remove the Skid – Grab the skid by the battery mount and pull it off gently.
3. Replace the Skid – Install a new landing skid by pushing it’s two pegs (found near the battery mount) into the holes in the bottom of the fuselage.  Be sure to do this gently – don’t damage the helicopter by using too much force.

Replacing the Blade MCX Inner Shaft

The inner shaft turns the top rotor blades. After a few crashes, the rotor head / hub where the flybar connects can become bent, or the inner shaft itself can snap. If you’re in a particularly bad crash and the inner shaft breaks, here’s what to do:

1. Remove The Battery and Skid – The battery slides out, and the landing skid can be pulled off.
2. Remove The Flybar – How to do this is mentioned above.
3. Remove The Top Rotor Blades – This was also previously mentioned.
4. Remove The Bottom Gear – On the bottom of the fuselage, you’ll find two white plastic gears. Remove the bottom one by loosening the screws on the silver washer glued to it. Don’t remove the little black screws completely because they are easy to loose. Just loosen them enough to let the bottom gear slide off. Then gently pull the bottom gear downwards and clear of the inner shaft.
5. Pull Out The Old Inner Shaft – The inner shaft can now be slid out of the outer shaft by pulling it upwards.
6. Insert the New Inner Shaft – Slide the new inner shaft into the hole on the top of the outer shaft – it should drop down easily.
7. Replace The Bottom Gear – Slide the bottom gear onto the inner shaft so that it meshes nicely with the motor shaft gear. Tighten the small black screws that you loosened earlier.
8. Re-Install All The Other Parts You Removed – Add the upper rotor blades, flybar, landing skid, and battery.
9. Test it – Make sure that turning the upper rotor blades makes the lower white gear move. If it doesn’t, then the small black screws on the lower gear aren’t tightened sufficiently.

Replacing Blade MCX RC Helicopter Rubber Grommets On The Canopy

The Blade MCX canopy is held on with small black rubber grommets. These rubber grommets can sometimes fall off and get lost, but replacing them is easy – here’s how:

1. Pick Up a Grommet – Yeah, I know this one sounds obvious, but picking up the small grommets without losing them is hard. The way that works best for me is to let one sit on a table, then press a finger down on it. The grommet should stick to your finger, and you can then place it where needed.
2. Push the Grommet Onto The Blade MCX Body – Push the grommet onto the shafts in the fuselage using your finger. Doing this isn’t easy, and it may take several tries.

© Draganfly Innovations Inc.
Phone: 1-800-979-9794 / 306-955-9907
Email: info@rctoys.com
Web: www.rctoys.com
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Lithium polymer batteries are great for RC aircraft, but they have an explosive chemistry that must be treated with caution.

Prevent this from happening to your batteries by following these tips:

1. Store lithium polymer batteries in a flame proof LipoSack while charging. - Charging your lithium polymer batteries in a flame proof LipoSack can contain a fire should it occur. It could mean the difference between a minor clean up and the loss of your house or car. Also make sure that the storage area is well ventilated.
2. Read the manual – The importance of reading your battery and chargers manual cannot be emphasized enough. The battery manual will state the proper charging rates and times.
3. Use common sense – Don’t charge batteries unsupervised. Even when you do everything right, incidents can occur. Also, do not charge lithium polymer batteries in your car. A flame out can be disasterous if it occurs inside a vehicle.
4. Use the right battery charger – Charging a lipo battery with a charger designed for other batteries will cause problems, and will probably result in a fire.
5. Charge lithium polymer batteries on a fire proof surface – It’s really important to charge lithium polymer batteries on a flame proof surface such as concrete. In the event of a fire, a fire proof charging surface will stop it from spreading, or at least slow it down significantly.
6. Keep a fire extinguisher, or bucket of sand near the charging area – If a fire does occur, you don’t want to be running around looking for something to put it out with. Water will not help put out a lipo fire. Being a conductor, it will cause a short circuit and could even make the fire worse.
7. Don’t charge lithium polymer batteries near flammable substances – Lithium polymer batteries are flammable enough as it is. Don’t make the problem worse by storing flammable substances near charging batteries.
8. Check lithium polymer batteries for swelling prior to charging and each use – A puffed battery is unstable, and can be in danger of exploding. If you see a puffed battery, immediately disconnect it from the charger or aircraft and put it in a bucket of water. Dissolve a few tablespoons of salt in the water to aid conductivity, and leave the battery in the bucked for about 4 days. The salt water depletes any power remaining in the battery by creating a short, and it can’t catch fire while underwater. After the four days are up, take the battery out and cut off the connectors (which may come in handy for other projects). You can then dispose of the battery in the trash. The battery no longer contains toxic metals, won’t harm the environment, and by using the salt water you’ve guaranteed that it won’t catch fire. This should be done as soon as you see a puffed battery. You can’t salvage a puffed battery, the best you can do is to dispose of it safely.
9. Never charge a lithium polymer battery in a model – If you charge a lipo battery in your RC airplane or helicopter, you are risking the total loss of your model. Only charge lithium polymer batteries on a flame proof surface, in a LipoSack.
10. Make sure the charging leads are connected properly – Connecting positive to negative and negative to positive can cause a major fire.
11. Don’t overcharge batteries – By their very chemistry, lithium polymer batteries cannot be discharged to a potential of less than 3 volts without damage. For the same reason, don’t charge them to over 4.2 volts. This means that you have to land your rc aircraft before the motors stop turning. Some aircraft come equipped with a voltage cut-off, others do not. If you don’t have a voltage cut-off, then land as soon as you sense the propeller or rotors slowing down.
12. Double check that the charger settings are correct – Lithium polymer battery chargers require you to set the battery configuration. Ensure that this configuration matches the battery you’re charging, or else your lipo could get overcharged and explode. Some chargers automatically sense the battery configuration, but make sure that the setting is correct regardless. They have been known to be wrong on occasion.
13. Balance lipo batteries – Lithium polymer batteries have balance connectors, designed to make sure that each cell in the pack has the same charge. If this isn’t the case, some cells can become overcharged and explode.
14. Never let the battery leads touch – If the battery terminals touch each other, the battery will short circuit and, in most cases, be destroyed. If this happens and you get a puffed battery, dispose of it by following tip 9 above.
15. Don’t ever store / charge lithium polymer batteries in your car – Unless you hate your car. Batteries can and do explode, and if this happens inside a vehicle the result is usually catastrophic. On a hot day, temperatures can rise inside the car and cause stored packs to rupture.
16. In the event of a crash, remove the battery and supervise it for at least 4 hours – A crashed plane’s battery can appear fine, but can have an internal short circuit. This short circuit can cause an explosion, even hours after the crash occurred. A LipoSack is a great place to keep a battery that’s been in a crash. If enough time elapses and nothing happens, then your battery is probably fine. If you see puffing, dispose of it immediately following the instructions in tip 9 above.

Always use common sense, read the manual, and know the risks associated with lithium polymer batteries. Handled properly, the risk of a fire is relatively small. Store lithium polymer batteries in a LipoSack for additional saftey.

© Draganfly Innovations Inc.
Phone: 1-800-979-9794 / 306-955-9907
Email: info@rctoys.com
Web: www.rctoys.com
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The Blade MCX is an ideal RC helicopter for beginners. Here’s a list of 10 power tips to help you keep your Blade MCX in the air, and have fun flying it.

1. Keep A Few Replacement Parts Handy – Accidents happen, and waiting for replacement parts to come in the mail can be a pain. When you order a Blade MCX, also order a few of the most needed replacement parts. These include the main landing gear, stabilizer fly bar, upper main rotor blades, and inner shaft. We’ll post a detailed how to for adding replacement parts to the Blade MCX shortly.
2. Trim the Heli For Easier Flight – The Blade MCX transmitter has trim tabs that you can use to cancel out unwanted movement in flight. Apply trim by bringing the helicopter to a stationary hover, and letting go of the control sticks for a moment. Note the direction that the RC helicopter drifts in, and  press the buttons near the transmitter sticks in the opposite direction to compensate. Each trim tab corresponds to the control stick it’s placed next to. Page 15 of the manual has detailed instructions for trimming the Blade MCX.
3. Land Before LVC (Low Voltage Cut-off) – At low voltage cut-off, the RC helicopter’s red LED lights will start to blink. This means that the lipo battery is at a minimum voltage, and can’t be drained further without damage. Land immediately. Flying past LVC will damage the battery, and you’ll get shorter flight times as a result.
4. How To Fly Faster – Flying forwards using only the pitch control doesn’t make the Blade MCX go very fast. You can increase speed by increasing throttle as you pitch forward, and by flying in a gradual left or right turn.
5. Lubricate Moving Parts – If you have trouble controlling the Blade MCX, it could be because parts are not moving freely enough. Use a small amount of light lubricate on the moving parts near the rotor head to allow them to move more smoothly.
6. Replace the AA Batteries Included With The Blade MCX – The AA batteries included in the box aren’t as good as those you can get locally. They work fine in the transmitter, but they won’t charge the Blade MCX battery nearly fast enough.
7. Keep A Spare Battery Charged When Flying – Why interrupt flying to let the battery charge? If you have a spare battery for the Blade MCX, you can charge one while you use the other, reducing down time for charging.
8. Keep the Main Shaft Clean – Foreign objects, especially hair can get stuck in the Blade MCX main shaft. This will make the motors struggle, and could stop them completely. Check for hair or other objects wound around the main shaft before flying and remove any you find with a pair of tweezers.
9. Use Rechargeable Batteries in The Charger – Using rechargeable batteries in the Blade MCX battery charger will save you money.
10. Close Doors And Turn Off Fans – Closing doors and turning off fans in the flying area will reduce drafts and make flying easier. The Blade MCX was not designed to handle any wind.

© Draganfly Innovations Inc.
Phone: 1-800-979-9794 / 306-955-9907
Email: info@rctoys.com
Web: www.rctoys.com
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We are pleased to announce that we will be adding the amazing Blade MCX indoor micro RC helicopter to our inventory. The Blade MCX is the next step in the world of indoor RC helicopters, and has several amazing
features that set it apart from the crowd.

Blade MCX Main Features: What you Get In The Box

The Blade MCX includes everything you need to fly, right out of the box. Here’s what’s included:

• Blade MCX RTF Micro RC Helicopter
• 2.4 Ghz, DSM-2, Spread Spectrum Transmitter (Includes 4 AA Batteries)
• Portable Lipo Battery Charger (Includes 4 AA Batteries)
• 1 cell, 3.7 volt, 110 mAh lipo battery
• Small Screwdriver for Assembly
• Extra Canopy Securing Rings

Because you don’t have to purchase additional parts to fly the Blade MCX, it’s perfect for beginning pilots who are new to the hobby. The
Blade MCX is also well suited to pilots with previous RC helicopter experience, for flying indoors and during the winter months.

Helicopter Features

The most innovative feature of the Blade MCX is it’s fully proportional, four channel radio. Having four channel control means that pilots can fly the helicopter with four dimensions of freedom. Just like a large, expensive RC helicopter, the Blade MCX can fly up/down, rotate left/right, pitch forwards/backwards, and bank left/right. Having a four channel radio system lets you precisely control the Blade MCX’s movement through all three dimensions. Four channel control is nothing new to RC Helicopters, but what makes the Blade MCX special is it’s size. With a rotor diameter of 7.5 inches, and a length of 7.9 inches, it can easily fit into the palm of your hand. It is very uncommon to find RC helicopters of this size and price range with four channel control.

The Blade MCX features a coaxial rotor design. This coaxial design gives the helicopter great flight stability, and removes the need for a separate tail rotor to control yaw (rotation about the main rotor
axis). The main rotors spin in opposite directions, cancelling out any yaw caused by their rotation. Coaxial helicopters are great for flying indoors, because they are inherently stable and so can be controlled very precisely.

The Blade MCX uses a tiny 1 cell lithium polymer battery for power. Unlike most micro RC helicopters, the battery is removable and interchangeable. Each cell provides 3.7 volts of power with a capacity of 110 mAh (Milli ampere hours). You charge the battery using the included base station, which runs off four “AA” alkaline batteries. A typical charge takes about 30 minutes and provides an average flight time of 6 to 8 minutes. Because the battery is interchangeable, we recommend that you purchase an extra so that you can use one while the other is charging.

The Blade MCX uses a genuine Spektrum DS-2 type radio system. The helicopter radio is fully compatible with many other DS-2 transmitters, including the:

• Spektrum DX5e
• Spektrum DX6i
• Spektrum DX7
• JR X9303
• JR 12X

Modular radios which have Spectrum modules installed will also work with the Blade MCX. Please note that the Spektrum DX6 is not compatible.

Spread Spectrum technology greatly reduces the chance of any radio interference from other aircraft of sources. It also uses a short transmitter antenna, allowing the transmitter to fit in a small and sleek case.

Blade MCX Transmitters are all mode 2, meaning that throttle and rudder are controlled with the left stick and pitch and roll with the right. The transmitter throttle stick is not spring loaded, so it remains at the position that it was last set to. Most RC helicopter pilots prefer this, as it allows you to remove pressure on the throttle stick while hovering. The radio has a dual rate feature, which allows you to choose how fast the helicopter responds to your commands. Beginners should start with mode 1, which can be set by pressing down on the right control stick and holding until the red light starts blinking. Setting the transmitter to mode 2 is done the same way.

Weighing only 1 ounce, the blade MCX is virtually crash proof. A sudden drop from a few feet above the ground won’t damage it, and in most cases minor collisions with walls are not a problem. In the event of a crash where damage does occur, we carry a selection of the most commonly needed replacement parts. Although it is not indestructible, the Blade MCX’s durability makes it an ideal gift for anyone over 12 years of age.

If you want to get into the exciting world of RC helicopters, the Blade MXC makes a great starting place. It will teach you all the basics of RC helicopter flight, and can be used as a stepping stone to more advanced models. If you’re already an experienced RC helicopter pilot, you’ll be impressed with the Blade MCX’s control and stability. Watch our site for tutorials on the Blade MCX, including a how to for installing replacement parts.

You can check out the blade MCX on our website.

© Draganfly Innovations Inc.
Phone: 1-800-979-9794 / 306-955-9907
Email: info@rctoys.com
Web: www.rctoys.com
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These tips and tricks will save you time and money flying your RC model airplanes.

• Clean Your Transmitter - Everyone loves the way brand new transmitters and other RC equipment looks, but after a few trips to the flying field it can accumulate dust, grass, and other debris, You can make your transmitter look like new by brushing it off with some stiff paintbrushes. Get the dirt trapped in hard to reach places using compressed air, available from most computer stores in canned form. A soft cloth and some glass cleaner solution can be used to wipe off any displays.
• Secure an Antenna – Many RC model airplanes have long wire antennas, which need to be fixed to the fuselage to prevent them from dangling in the wind. Make a secure and adjustable attachment by taking a short (~1 inch) length of fuel tubing, and passing the wire through. Then push a small pinhead into the fuel tubing so that the wire can’t fall out easily. You can then glue the fuel tubing onto your airplanes fuselage wherever it’s convenient. Tighten the antenna by gently pullign on the end.
• Safe Storage for Wings and Fuselages – Keeping RC model airplane wings and fuselages out of harms way can be a hassle. Many hardware stores sell portable shelving units, which you can use to safely store your RC model airplanes. Install the shelves on a wall, but leave off the solid wood planks that create a surface. What you will be left with is a series of protruding beams, that you can set RC model airplane wings and fuselages on. The shelves let you stack several aircraft on top of each other for efficient storage.
• Securing Screws with Silicon – Ordinary silicon gel can be used to prevent screws from vibrating loose. As an added bonus, you can peel the silicon off easily when you need to undo the screw.
• Prevent Parts from Rolling Away  – You can prevent small screws and other metal parts from rolling off your workbench by taking any large, flat container and gluing some magnetic strip material to the bottom. Metal parts will stick to the magnet and will not be able to roll away.
• Remove Thread Lock Compound – Thread locking compounds are great for preventing parts from vibrating loose in flight, but removing screws secured with thread lock compound  can be a pain. Avoid stripping screw heads by first touching a hot soldering iron to the screw for a few moments. The heat will melt the thread lock compound, allowing the screw to come loose easily.
• Cheap Wingtip Protectors – Model airplane wingtips can get scuffed on grass and pavement runways. Prevent this by adding small strips of plastic, obtained from soda bottles. The plastic can be attached using glue or small wood screws.
• Secure Servo Leads – Having a servo lead come off in flight can be disasterous. Prevent this by tying the servo cable in a loose knot after you plug in the leads. This will prevent the cable from coming loose in flight, and removing them is a snap.
• Avoid Pulling The Connectors Off Servos – Pulling the wire off a servo connector is annoying. Prevent this by bending in the ends of ordinary tweezers, to make a tool that can grab on and pull of a servo lead. The bent ends can grab right on to a stubborn connector.

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© Draganfly Innovations Inc.
Phone: 1-800-979-9794 / 306-955-9907
Email: info@rctoys.com
Web: www.rctoys.com
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Hacker has recently revised the design of their popular A20 series of brushless electric motors. The new Evo series features several interesting modifications, listed here:

• Revised Can Design – Hacker has revised the motor’s external case to allow for better airflow and cooling towards the back of the motor.
• New Stater and Magnet Material – Hacker has re formulated the material used for the stater and magnets in their brushless motors. The new material has a lower internal resistance, which gives the motors more power and efficiency.
• Collet Style Adapter – The new evo motors use a new style of prop adapter, which is more secure and easier to use than the previous versions. The new adapter also allows the motos to be more easily mounted either in front or behind an RC model airplane firewall.
• New Mount – All of the A20 series motors now feature a new type of mount which allows the new can design to work.

All of the Hacker A20 brushless motors except the A20XL incorporate this new design, including the A20, A20S, A20M, and A20L.

All of the A20 brushless motors we sell will be revised to this new design, so why not get one for your electric RC model airplane today?

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© Draganfly Innovations Inc.
Phone: 1-800-979-9794 / 306-955-9907
Email: info@rctoys.com
Web: www.rctoys.com
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