Draganfly Innovations News March 31, 2008

Draganfly Innovations Participates in ‘Kilobots XII’ Combat Robotics Tournament

On March 29th & 30th Draganfly Innovations participated in the 12th occurrence of Kilobots, an event where remote controlled robots weighing 1 to 6 pounds can battle each other in a lexan walled fighting area. Robots are grouped into four weight classes: Antweight (1 pound), Kilobot (1 kilogram or 2.2 pound), Beetleweight (3 pound), and Mantisweight (6 pound). Robots within each class battle each other with the goal of disabling their opponents robot. After all the combatants have fought, winners are determined for each weight class. Typical weapons included pushing wedges, horizontal/vertical spinning blades/bars/drums, lifting arms, and flippers. For more information on Kilobots, check out the official homepage: www.kilobots.com

Draganfly Innovations participated in Kilobots XII with a 3 pound Beetleweight named ‘Angry Dragan’. Featuring a shell spinner weapon design, Angry Dragan put up a good fight but unfortunately did not win. However, after the tournament each weight class has its own ‘rumble’ where all the robots that remain functional get to battle each other until only one is left standing. Check out Angry Dragan’s performance in the video of the Beetleweight rumble on YouTube.

Angry Dragan Beetleweight Combat Robot

This is the second Kilobots event in which Draganfly Innovations has participated, and the first in which Angry Dragan has fought. For information on all of Draganfly Innovations’ robots, check out Team Draganfly’s profile on the Builders Database.

Angry Dragan uses high quality lightweight components: a Thunder Power 11.1V 3s 2100mAh lithium polymer battery, and a Castle Creations Phoenix 45 ESC motor controller. If you are interested in building your own robot, you can obtain lithium batteries, brushless motors, and speed controllers in the parts section of RCToys.com. Other robot components are available at FingerTech Robotics.

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RC Blimps March 19, 2008

Introduction to RC Blimps - Learn How Remote Controlled Blimps Work

Why RC Blimps Float

RC Blimps

A remote controlled blimp is a lighter than air aircraft that relies on the principle of buoyancy. Buoyancy is the effect that causes less dense objects to rise when immersed in a denser substance. As long as a similar volume of one material is less dense than another, it will rise. RC blimps, airships and flying saucers make use of this buoyancy effect by using a lighter than air gas to fly: Helium. Because Helium is less dense than the air the blimp will float. The idea behind a blimp is to have the lifting force of the helium exactly cancel out the downwards pull of gravity. This is called neutral buoyancy. In order to rise or descend, the blimp fills or empties different compartments (ballonets) with air. Because air is heavier than helium, this will cause the blimp to decend. Emptying these ballonet compartments will make the blimp lighter and cause it to rise.

The First Blimps

1922 C-2 Blimp (Credit: David Brooks)The first rigid airships (also called Dirigibles or Zeppelins) were constructed in the early 20th century. Back then blimp aircraft consisted of a metal frame, covered with fabric and filled with a lighter than air gas like Helium or even Hydrogen. Below this balloon assembly was the gondola. The blimp’s gondola housed the pilot, crew, passengers, and engines. These airships were used for both war and civilian travel during the 20th century. A famous example of such a zepplin was the German Hindenburg airship, which was destroyed on May 6th, 1937. The Germans, who were unable to obtain helium gas for the airship, used hydrogen as the lifting gas. Hydrogen is explosive where Helium is inert. The Hindenburg disaster played a huge role in ending the use of huge blimps for passenger travel.

Modern Blimps

World Famous Goodyear BlimpModern blimp airships are non rigid, meaning that there is no internal structure to support the envelope. Modern blimps are filled with Helium, a safe inert gas, to make them float. Like the old rigid airships, modern blimps still rely on the principle of buoyancy to fly. Modern blimps are used primarily for advertising rather than passenger travel. If you’ve ever attended an NFL football game, NASCAR race, or PGA golf tournament you’ve probably seen the popular Goodyear blimp.

Remote Control Blimps

Airship America RC BlimpRadio controlled blimps are an excellent choice for someone new to RC and appeal to all ages. An RC blimp is just a smaller version of a modern blimp airship, except for a few differences. Instead of relying on ballonets (air-filled bladders) to change the weight of the blimp to rise or descend, neutral buoyancy is achieved by adding small weights or ballast putty to the blimp until it hovers. The RC blimp’s gondola is equipped with small electric motors with propellers used to propel the blimp up and down. Most electric rc blimps use a tri fan design, to provide directional control in every direction: up/down, left/right, and forwards/backwards. A good example of this are the Mach III Indoor RC blimps at RCToys.com. These R/C blimp aircraft are for indoor use only. Flying them outside will lead to them getting lost, or blown away. Remember, these aircraft are really helium balloons with motors and a radio, so make sure that you fly them where they cannot get away.

RC Blimp Balloons

RC Blimp EnveolpesRC blimps come with a super lightweight mylar balloon. These mylar rc blimp balloons are both durable, refillable and replaceable. For customers at altitudes greater than 4000 ft above sea level, a larger capacity high lift balloon is available. This white high-lift rc blimp balloon is also great for applying advertising stickers. This can be necessary because, as altitude increases, the density of air decreases, lowering the lift generated by the balloon.

Where to buy Helium for RC Blimp Balloons

Helium for the rc blimp’s balloon envelope is easy to obtain at wedding & party supply stores, flower shops, most grocery stores, and welding supply shops. Filling the rc blimp is also easy, the person selling you the Helium should be able to do it for you, if they have a mylar nozzle. After filling the envelope with Helium place a small piece of tape over the hole to keep the Helium in the balloon.

How to achieve neutral buoyancy so your RC blimp hovers

Chances are, after you have filled your blimp with Helium, it will try to climb. You can use either the weights included with the blimp, or some modeling clay (ballast putty) to correct this. Hang the weights on the rods supporting the engines, making sure to keep the weight equal on both sides. If you decide to use modeling clay, place it in the gondola, near the batteries. Using clay instead of the included weights will allow fine tuning the airship, so that it will maintain the altitude that you want it to. Add just enough weight so the rc blimp neither climbs or sinks.

Where to buy RC Blimps

Draganfly Innovations Inc. sells a huge selection of RC blimps and flying saucers. The most popular blimps are the RC Goodyear Blimp, the RC Airship America and the RC Blimp Bomber. Replacement r/c blimp parts, balloon envelopes and 3V lithium blimp batteries are all available at www.rctoys.com.

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

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RC Airplanes March 19, 2008

Learning to Fly RC Airplanes - A Guide to Flying More and Crashing Less

RC AirplanesIn this article, we will look at several different ways to learn how to fly your RC aircraft.

After you get your new RC airplane, you will most likely want to fly it right away. Most of the time, rushing to a first flight without being prepared leads to a crash. Fortunately, there are several ways that you can learn to fly RC safely.

Fly your RC plane with an instructor and join a flying club

The oldest and most common way of learning to fly is by flying with a more experienced pilot. The easiest way to learn with an instructor is to join a local RC flying club. There are usually at least a few members who teach students to fly. This is an absolute must if you fly nitro or gas models, even a minor crash with one of these can be very damaging to the model.

When flying with an instructor, the risk of a crash is greatly reduced. An experienced pilot will know what do do in almost any situation, without thinking. It is also beneficial to learn how to operate the aircraft safely, and learning to fly with an instructor will make this easier.

Share the transmitter with an instructor

There are two ways by which an instructor and a student can share the transmitter, the first, and simplest way is to hand the transmitter over in case of an emergency. This is a fine method, but a faster and more reliable one is to use what’s called a “buddy box”. When using a buddy box, two transmitters are linked by a cable. The instructor has the master, and the student has the slave. When the student is flying, the instructor holds down a switch on his/her master transmitter to give the student’s transmitter control. As soon as the instructor needs control, he/she just has to release the switch, and control will be transferred to the master transmitter. This way the instructor can anticipate a crash and save the airplane before it’s too late.

Get an RC flight simulator for your PC

GWS Flight Sim KitIf you can’t find an instructor in your area, then you can still learn to fly without risking your model. RC flight simulators are becoming more popular, and are a fantastic way to practice without the risk of crashing your real plane. Read these articles on www.rchelicopter.com about RC aircraft simulators, and instructions on how you can use your actual aircraft transmitter with your computer. This GWS Flight Simulator Kit is an inexpensive flight sim for your PC.

Buy an inexpensive, simple, 2 or 3 channel RC plane and go from there

Vortex Beginner RC AirplaneIt is possible to teach yourself how to fly airplanes. If you have a simple, ready to fly aircraft like the a two channel Vortex or a Venom Micro Park Fighter, then your first solo flights are likely to be a success. Find an instructor and practice on the RC flight simulator before trying a solo flight with a harder to fly aircraft like a 3, 4 or 5 channel model.

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

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FMS Flight Simulator March 6, 2008

The FMS Flight Simulator Is Now Working with Windows Vista

FMS Flight SimulatorGood news! You’re now able to run the FMS RC flight model simulator on Windows Vista!

Users of the excellent Flying Model Simulator are reporting having trouble getting it to work properly on Windows Vista. After installing and trying to run FMS, users are generally presented with an error box stating: “D3DRM.DLL cannot be loaded”. Basically, this is telling you that Windows is missing a library, and needs it to display the graphics. Fortunately, there is a library available that fixes this problem. In this article, I will show you how to install this on Windows Vista, so that FMS will work.

  1. First, reinstall the FMS flight simulator program. A self extracting installation wizard is available on the page, at http://n.ethz.ch/student/mmoeller/fms/index_e.html Download the latest version, titled Version 2.0 Beta 7 (Windows 9x/ME/2000) - recommended Version
  2. After installing, you will need to install the missing library D3DRM.DLL in your Windows Vista System32 folder. Please be careful to follow these instructions exactly, you could damage your system by accidentally deleting files in this folder. Here is the installation procedure, be sure to follow it exactly.
    1. D3DRM.DLLGo to http://www.driverskit.net/dll/get/494.html and enter the code that you see at the bottom of the page.
    2. Press the download button, and save the ZIP file to your computer.
    3. Extract the file D3DRM.DLL
    4. Move the file D3DRM.DLL into the folder C:\Windows\System32
  3. Restart the FMS application, and it should now work perfectly.

Get compatible FMS transmitter to USB interface cables and simulator kits here:

FMS Simulator Kit Futaba Square Micro Plug USB Interface CableHitec Round Plug USB Interface CableJR 1/8th in Plug USB Interface CableGWS 1/8th in Stereo Plug USB Interface Cable

We sell USB interface cables to link your RC transmitter to your Windows PC for use with the FMS program. We have Futaba FMS cables, Hitec FMS cables, JR FMS cables, GWS FMS cables and a complete FMS simulator kit. Get one today at Draganfly Innovations Inc. www.RCToys.com

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

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RC Airplanes February 28, 2008

Electric RC Airplane Types

Electric RC planes are available in different types, and each has it’s own advantages. RCToys.com has many planes to choose from, and they can be grouped into these categories.

Beginner RC Airplanes:

Beginner rc airplanes are fun and interesting to fly. They are a great way for kids to lean how to fly in a safe and inexpensive environment. These rc airplanes are generally constructed out of plastic or crash resistant foam, and have integrated internal electronic parts. These features make them ready to fly out of the box, without needing to buy or install anything separately. They are available in two or three channel varieties, and are most often RTF (ready to fly). RC airplanes of this type can provide many hours of fun flying, and replacement parts are available for most models.

The Vortex is a good example of a typical two channel rc airplane.

Vortex RC Airplane

The Vortex has both throttle and rudder control, allowing it to move freely in three dimensions, without the pilot having to worry about elevator controls. This can reduce the learning curve, and prevent crashes. When you increase the throttle more air moves over the wings, increasing lift and resulting in a climb. Decreasing the throttle allows the rc airplane to descend. When you want the rc airplane to turn, the rudder will change the direction the nose is pointing.

The Vortex Extreme is like the regular Vortex, but with an extra channel been added for elevator control.

Vortex Extreme RC Airplane

This is good for more advanced pilots because it allows the rc airplane’s pitch to be changed without using the throttle. When the elevator control surface on the tail moves, air is directed up or down resulting in the rc airplane changing pitch. When the elevator is used to change the pitch of the rc airplane different maneuvers are possible, such as loops and rolls.

Both of these models are easier to fly and less expensive than their more sophisticated counterparts.

These two rc aircraft use a pod and boom approach to fuselage design, resulting in a lightweight and durable model. The “pod” part is made of plastic and houses the electronics and engine, and also provides a mounting point for the wing. The boom is a carbon fiber rod with the rudder and horizontal stabilizer mounted at the end.

These rc models are an excellent choice for the beginner, as they are both relatively inexpensive and easy to fly and repair. Replacement parts for both are easily available. These rc airplanes are ready to fly right out of the box, and offer an excellent starting place for the someone new to rc airplanes.

Advanced RC Airplanes:

The beginner rc airplanes mentioned previously are fine for the casual flier, but eventually you will want a more advanced model. There are many different hobby class models available, and they all have several common qualities. The electric components that they use are most often standard, and replaceable as discrete modules. This increases the lifespan of the model, and the components can be reused in future rc airplanes. Most have at least three channels used, with extras being available for expansion.

These airplanes can come in RTF (Ready To Fly) form, or ARF (Almost Ready to Fly) form. ARF airplanes require some gluing and minor assembly.

The MiniMag is an excellent example of a serious RC airplane, with three fully proportional channels, and a tough foam airframe. Ailerons are included in the wing, making it expandable to four channel control (the receiver supports this).

MiniMag RC Airplane

The SX3 is another full fledged rc airplane, available with a lithium battery, brushless motor, and four channel receiver with three servos. This aircraft is capable of highly aerobatic flight, and is a good choice for a more experienced flier.

SX3 RC Airplane

RC planes come in various sizes, but if this is your first model, try to get the largest one possible, it will be more stable.

If you are looking for an rc airplane, our website has many to choose from, and helpful articles.

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

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Information Articles February 22, 2008

Electric RC Aircraft Power Systems - Most Freqently Asked Questions

There are several common questions that are regularly asked regarding the operation and maintenance of electric RC systems. This article lists the most common questions and their answers.

Which Lithium Polymer Batteries Should Be Balanced?

Answer: Any Lithium Polymer (LiPo) battery with more than two cells should be balanced. A LiPo battery is composed of individual cells, and each cell can charge and discharge at different rates. Eventually, the difference will increase until it can harm the entire pack. When charging the pack, a balancer will set all the cells to the same voltage. By not having certain cells charged and discharged beyond their limits, the life of the entire LiPo pack is increased.

What Does the KV Number Mean?

Answer: The KV number on a brushless electric motor shows what speed it will rotate at per volt of input. This will allow you to determine the unloaded speed you can expect from the motor at different battery levels. This number is measured under the assumption that there is no resistance keeping the motor from turning. In reality, when using a motor you would have a load attached, for example a propeller. This load will cause the motor to slow down. The KV rating will not show exactly what the performance of a motor is when a propeller attached, but it will give you an approximation. A higher KV rating is given to faster motors, and a lower one to slower motors.

What’s a BEC?

Answer: A BEC (battery eliminator circuit) eliminates the need for a separate battery to power the radio system. It does this by drawing power directly from the flight battery, and uses this to power the radio. A BEC can also act as a backup system, continuing to draw the last bit of power from the flight battery for the receiver and servos to use even after their is not enough to power the main motor. This will enable the pilot to maintain control of the aircraft even after the engine stops. Most of the time these devices are part of the electronic speed controller, but they are also available as a separate unit.

What Size ESC Do I need?

Answer: There are two factors to consider when choosing an ESC, the voltage and the amperage. The rated voltage and amperage should always be above the maximums that will be used in the aircraft. Select an ESC that is rated for the same or more cells than you plan to use, and with a current rating at least as high as what your motor is rated for.

What’s the C Rating On a battery?

Answer: The C rating on a battery relates to the maximum current that can be drawn from that battery. A 15C battery can have current drawn from it at up to 15 times the rate that would discharge it in one hour. A 1320mAh (milliamp hour) battery would be discharged in one hour if you were to draw 1320mA from it for one hour), and would be discharged in 1/15th of an hour if you were to draw 15 x 1320mA (19800mA or 19.8 Amps) from it. There are three types of C ratings. Continuous is the amount of current that can be drawn constantly until the battery is depleted. Sustained shows the amount of current that can be drawn for a short period of time. Burst is the amount of current that can be drawn only for an instant. Most lithium batteries will have all three of these ratings printed on them.

Should I use a Watt Meter?

Answer: Yes, the watt meter will show how much electricity your plane is using. You will need a watt meter to determine if your aircraft is exceeding it rated limits.

What Size Prop Should I Use?

Answer: The best size propeller to use is the one the manufacturer of your engine recommends. It is possible to experiment with different propeller sizes, but use a watt meter to determine if your aircraft is exceeding the limits of its electric system. The motor specification sheet will show the voltage, amperage, and RPM of the motor with different propellers.

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

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Product Announcements & Thunder Power RC News February 11, 2008

The NEW Thunder Power RC TP610C Balance Chargers Are Now In Stock at RCToys.com

Thunder Power RCThe long wait is over! The brand new Thunder Power RC TP610C balance chargers are now here at RCToys.com. Pick one up while quantities last.

The Thunder Power RC TP610C balance charger can charge almost any type of battery right out of the box. No extra software or programming is necessary. The simple to use charge menus will have your charging and discharging your LiPoly, A123, NiMh, NiCD and PB battery packs in no time.

The new Thunder Power TP610C chargers are a work of art, finished in a beautiful red paint that shimmers in the light. Our pictures just don’t do it justice - you have to see this charger for yourself! See our new pictures of the Thunder Power TP610C balance charger:

Thunder Power RC TP 610C Multi Charger with Balancer
The 610C charger has large, easy to use buttons. The backlit LCD display lets you know exactly how everything about the charge/discharge.

Thunder Power RC TP 610C Multi Charger with Balancer
TP610C Charger top view. Notice the BL-2 balance adapter has plugs for both Thunder Power brand LiPo batteries as well as non-Thunder Power brand batteries.

Thunder Power RC TP 610C Multi Charger with Balancer
TP610C Charger right side. Notice the 4mm banana/bullet plug charge leads and the balance adapter. You can charge via the standard output jacks or the balance connector.

Thunder Power RC TP 610C Multi Charger with Balancer
TP610C Charger left side. Input power leads with alligator clips and Thunder Power RC data port.

What You Receive When Purchasing a TP 610C Charger:

  • Thunder Power TP610C Multi Charger with Built-in Balancer (1-6 LiPoly Cells)
  • Alligator clip power supply leads (attached, see picture)
  • BL-2 Connector (Balancer multi-adapter. Thunder Power and generic balance adapter plugs)
  • Thunder Power TP610C Owner’s Manual

TP-610C Balance Charger Specifications:

  • Maximum Charge Rate: 10 Amps
  • Charge Lithium Polymer and Lithium Ion A123 Cells: 1 to 6 Cell Packs
  • Charge NiCd and NiMH Cells: 1 to 14 Cell Packs
  • Charge Lead-Acid (PB) Batteries: 6 - 12Volts
  • Power supply sold separately. We recommended a 11-16V DC power supply capable of supplying 10 Amps (example: RipMax Pro-Peak) or a 12V car battery for charging in while at the flying field.
  • Remember to never charge or discharge your batteries unattended and always practice safe charging procedures.

For More Info:

Where to Buy a Thunder Power RC TP 610C Balance Charger:
Get the new Thunder Power RC TP610C balance charger at your favorite Thunder Power RC distributor, Draganfly Innovations Inc. www.RCToys.com. Remember, Draganfly Innovations gives you fast, FREE Shipping - anywhere in the world on all Thunder Power RC products.

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

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