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Air Age Media Partners with UAV Systems Association

Air Age Media Partners with UAV Systems Association

We’re proud to announce that Air Age Media, publisher of RotorDrone, is joining with the UAV Systems Association in mutual support of the rapidly emerging drone and quadcopter industry, and its potential to cause a tremendous shift in our everyday lives. First up is the Drone Expo being held December 13 at the Los Angeles Memorial Sports Arena and promises to be an event to remember. For tickets go to UAVSA.org/droneexpo and we look forward to seeing you there!

Tesla Foundation FAA Research Lab
The Tesla Foundation Group have been selected to create the FAA standards and Information Technology Solutions for the Registration and Tracking of all UAV vehicles in conjunction with the UAVSA. This system will utilize and or innovate the next level of Information technology and sensor technology to create the registration, tracking, data acquisition, and regulatory standards for operations of UAV vehicles in the American Airspace for all commercial and civilian use and the integration of all Airspace vehicles.

 

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Helios RC LED Light Bar V2 Review

v2a1

Want to double your RC scale fun? Of course you do. Get some lights and keep running when the sun goes down. Not only do lights allow you do run at night, which is a whole lot of fun, but let’s be honest, they look cool. There are lots of vehicle LED lighting options out there. Some are pretty pricey and some are complex with adapters, and separately sold parts to install. The guys at Helios RC keep it simple, and leave a lot of the imagination up to you on how you add there lights to your rig. But they don’t make it difficult.

FEATURES
These V2 Helios RC LED light bars feature an element that that will run off a 6-volt source, which means you can plug them right in most radio’s receiver unused port. However, not every radio receiver puts out the correct voltage. So, you will need a proper BEC that puts out 6 volts or a secondary switched power supply.  The light bar can handle up to 7 volts, so if you’re running higher voltage servos you are covered.

INSTALLING
For mounting, there are holes through the housing for m3 screws that allow you to mount it a few different ways. I chose the double element for optimum performance and application. The single would be great for all kinds of scale lighting applications such as a front bumper fog bar lamp, or lighting for under chassis trail illumination when crawling at night. I decided to use the light bar with a 6v receiver pack and toggle witch in the dash.

TECH NOTES FROM HELIOS RC

  • Note 1: do not power the lights directly from a 2s LiPo. This will ruin the light element
  • Note 2: for optimal brightness it is recommended that you don’t run the light on less than 6 volts

LED Light Bar V2 Configuration Options:
Single - this is with a single light element and printed with light weight with thick walls and hollow center.
Single Solid – this is printed with a filled center and will be stronger.
Double – this has two light elements for double the brightness.
Double Solid – solid printed interior so it will be stronger.
Price: $15-25 *depending on light configuration

Light Color:
Super White – Visually similar to what you would see from a HID lights you’d see on full size.
Warm White – These look warmer and are more scale. These will look like regular headlights.

 

PERFORMANCE & FINAL ASSESSMENT

LEDV2BARTEST1 LEDV2BARTEST2 LEDV2BARTEST3
Once everything was wired up and I found a safe spot for the light bar on the Wraith, it was time to hit the trails and, well, whatever else I could find in the dark. On 6 volts, the light bar performed well and I was happy with the amount of the light at that voltage level. The double element definitely does help with the overall lighting coverage of the ground ahead of the vehicle. If you went with the single element, I would suggest mounting it in the lower front of the vehicle rather than on the roof. The bar itself is fairly strong and took its fair share of the tumbles and falls that one would expect when out bashing or on the trails. When mounting anything to the roof of your RC vehicle some care should be taken and understand that the component isn’t “bulletproof” and anything will snap off if it’s abused too much. Overall, this setup worked well and with the ability to see what was ahead, I had fun cruising around in the dark.

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Helios RC

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Flight Journal Nominated for Most Inspirational Story — Cast Your Vote Today!

Flight Journal Nominated for Most Inspirational Story —  Cast Your Vote Today!

We are incredibly proud that our sister publication, Flight Journal, is a finalist in the Barnes & Noble/ NOOK Readers’ Choice Newsstand Awards! “Nocturnal Gamble” by Martin K.A. Morgan, featured in our December 2014 D-Day issue, was chosen from hundreds of entries in the Most Inspirational Story category. Please take the time to vote today and thank you in advance for your support of Flight Journal!

Read “Nocturnal Gamble” and cast your vote here: http://www.nook.com/readerschoice

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Fly a Negative Snap from an Inverted Climb

Fly a Negative Snap from an Inverted Climb

There is no doubt that many aerobatic enthusiasts are interested in performing extreme moves. It is important however, to build your aerobatic sequences on a solid foundation. Years ago, when I first became interested in aerobatics, 3D flying did not exist. Instead, we concentrated on precision aerobatics and honed our skills while competing at various Pattern (nsrca.org) and International Miniature Aerobatic Club or IMAC (mini-iac.com) competitions. By studying how the other guys flew and flying different routines, we improved our skills, and learn how to properly position our aircraft at all times throughout a maneuver or sequence.

The reason why I am explaining this is simple. Too many times, I see pilots trying different and extreme maneuvers and oftentimes the airplane is in control, but not the pilot. To become really successful we must stay in control and this requires lots of practice.

Maneuver breakdown
With placement and precision in mind, let’s talk about the second maneuver of the 2012 IMAC Advanced Routine. For this maneuver, the pilot enters from inverted flight and pushes to establish a 45-degree climb then he performs 1½ negative snaps. After the snap, another line segment (equal to the first line) is then executed. Once the maneuver is complete, the pilot must pull 135-degrees to exit in inverted straight and level flight.

This is a good maneuver to help teach you how to perform cleanly while being aware of any corrections being needed for maximum points. As with most maneuvers, with lots of practice, you learn to correct subconsciously which is the goal for anyone wanting to be a serious aerobatic and or 3D pilot.

First things first
Let’s take a look at your aircraft. For this maneuver, we will take the setup of my Extreme Flight 48-inch MXS airframe, which has unlimited vertical power. Each airplane has a different power-to-weight ratio so remember to take the throttle percentages I mention as a baseline and adjust to your specific aircraft. I also use a Flight Mode which simply means that all of my rates can be found on one switch. I use my low-rate setting for precision maneuvers that don’t involve snaps or spins. In this case, I utilize low-rates for the push to a 45-degree climb as well as the pull to the inverted exit after the 1½ negative snap roll have been performed. For the snap roll I use mid-rate setting since my transmitter has three rates. If your transmitter has two rates, I would make this my second rate provided that you use the recommended settings given below.

As a starting point for the low-rate setting, I recommend 15 degrees of aileron deflection with 20% exponential, 12 degrees of elevator deflection with 25% exponential, and 35 degrees of rudder deflection with 50% exponential. For the snap rate settings, I recommend 30 degrees of aileron deflection with 45% exponential, 25 degrees of elevator deflection with 45% exponential and 30 degrees of rudder deflection with 45% exponential.

Sometimes people don’t want to switch rates in a given flight. No worries! What works for one person does not always work for everyone else. If you prefer to only use one rate for all precision flying, you may have to use control surface deflections that are similar to my “Snap Rate,” but add more exponential so that your airplane performs more smoothly. All pilots have a different preference on how they want their airplane to perform. Having an airplane that is too “twitchy” will only make a maneuver more difficult to perform consistently so you’ll have to adjust either your control deflections or your expo settings.

To check rates, make test flights and flip to your “low rate” setting. Move the aileron stick to its maximum. If the roll rate is too slow for your liking, increase the dual rate. If however, you feel that the airplane responds to quickly around neutral but the endpoint (dual rate value) feels good, increase the exponential setting. Perform this flight test for all control surfaces and for various rates.

  Enter Inverted straight and level

1 Apply about 80% power and push to an inverted 45-degree upline.

2 After a straight line segment of about 75 feet, switch rates and perform 1 1/2 negative snap roll.

3 After the snap, switch rates to low, reduce throttle and maintain straight, upright line segment (75 feet).

4Pull up-elevator to perform 135 degree radius and establish inverted flight.

Exit Inverted straight and level

 

Maneuver overview
Climb to a safe altitude, roll to inverted, line up for the maneuver flying parallel to the runway and apply about 80% throttle. Push gently and establish a 45-degree inverted climb. After the radius and the climb is established, note the flight distance before the 1½ negative snap is started. You will have to fly a similarly long inverted flight segment after the snap roll. I usually count to myself and for this maneuver, a two-second segment seems about right. Flip to your Snap Mode and, all at the same time, apply down-elevator and opposite rudder and aileron. After the snap segment is complete, neutralize your inputs to establish a 45-degree upright climb. If you fly at a constant speed, then count to yourself again for two seconds. Now, pull 135 degrees to exit the top of the maneuver straight, level and inverted.

By the numbers

STEP 1: Enter the maneuver inverted and parallel to the runway. When ready, make sure that you apply at least 80% throttle and push down-elevator, ever so slightly, to perform a smooth radius and establish the 45-degree inverted climb.

STEP 2: After a line segment of about two seconds (about 75 feet in length,) flip to “mid-rate” and perform a 1½ negative snap roll. The key to performing the snap roll properly is timing and setup. If your airplane becomes too “deep” in pitch and is difficult to stop constantly on a 45-degree climb, you may need to dial the elevator rates down a touch. Also, for this segment of the maneuver, you may need to either increase or decrease the throttle to maintain constant flight speed.

STEP 3: After the snap roll, flip back to the “low-rate” setting, and perform a line segment that is equal in length to the first. Balance the throttle, as needed, so that the airplane maintains a constant flight speed and apply rudder input, if needed, to keep a constant heading. In a crosswind, you may notice the nose of the aircraft drifting into the wind. You will have to use just enough rudder to correct.

STEP 4: Exit at the top by pulling 135 degrees to establish inverted level flight. It will be necessary to hold a touch of down elevator to keep the altitude constant. You model’s CG location with affect how much down elevator is needed. Nose-heavy airplanes require more elevator input.

Like I mentioned earlier, it is important to take small steps to accomplish your goals and perfect a new maneuver.

BY JOHN GLEZELLIS; ILLUSTRATION BY FX MODELS

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E-flite UMX Habu S DF180 BNF

E-flite UMX Habu S DF180 BNF

Listen up, speed freaks: this tiny jet is your ticket to ride! With a wingspan of just 14.6 inches,  this ultramicro model will keep your thumbs busy indoors and out. And because it has AS3X flight stabilization, it performs like a much larger model. Here’s what E-flite has to say:

The E-flite® UMX™ Habu S DF180 is a high-speed performance jet that’s sized to enjoy just about anywhere outdoors. Based the popular original UMX Habu, this new ultra microsport model delivers an unparalleled RC experience. Exclusive SAFE® technology in the Habu S makes it easier than ever for experienced ultra micropilots to enjoy EDF flight. With 3 flight modes, Panic Recovery mode, and AS3X stabilization technology, the Habu S is sure to appeal to everyone.

Features:

  • Completely built and flight ready
  • SAFE® technology delivers flight envelope protection and AS3X® stability
  • Ultra-lightweight construction with a scale inspired paint scheme
  • Powerful E-flite® Delta-V® 180m, 28mm EDF unit (installed)
  • BL180m brushless ducted fan motor, 11750Kv (installed)
  • Four-channel control featuring industry leading Spektrum™ DSMX® technology
  • Performance ultra microlinear long-throw servos (installed)
  • Engineered intake and exhaust ducting delivers maximum performance
  • Removable landing gear and steerable nose wheel
  • 200mAh 2S 7.4V 25C Li-Po battery (included)
  • Celectra™ 2S DC Li-Po balancing charger (included)
  • Requires a Full range 4+ channel aircraft transmitter with Spektrum DSM2®/DSMX technology

Specs:

Plane Type: Ducted Fan
Experience Level: Intermediate
Construction: Foam
Wingspan: 14.6 in (372mm)
Overall Length: 17.5 in (444mm)
Wing Area: 54.0 sq in (350 sq cm)
Flying Weight: 2.70 oz (76.0 g)
EDF Size: 28mm EDF unit with BL180m, 11750Kv motor (installed)
Radio: 4+ channel transmitter (required)
Servos: (4) 2.3-gram performance linear long throw servos (installed)
Flight Battery: 200mAh 7.4V 2S 25C Li-P(included)
Charger: 2S 7.4V Li-Pcharger (included)
Approx. Flying Duration: 3-5 minutes

#EFLU4380

EFLU4380

Model Airplane News - The #1 resource for RC plane and helicopter enthusiasts featuring news, videos, product releases and tech tips.

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3D printed UAV with integrated motors!

3D printed UAV with integrated motors!

3D printing technology can create some amazing things, but how about a UAV that includes integrated electric ducted fans? Designed and built by a Boeing-assisted team at the University of Sheffield, this aircraft weighs 7.7 pounds and can fly at 45mph using its integrated motor. It is made up of modules that are bolted together, with the fuselage section (included the ducted fans) printed as a single ABS part. And the ducting inside can even move for greater pitch control! The motors and electronics are added later. We hear the team is working on a nearly 10-foot-span version that uses miniature turbines for power.3D_printed UAV1

 

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Orion Advantage IQ-4X Charger

Orion Advantage IQ-4X Charger

The Advantage IQ-4X is a new high-tech battery management system for AA/AAA NIMH/NICD batteries and LiPo/LiFe micro batteries. This compact charger can charge, discharge, cycle, refresh and break-in your batteries. This helps you to keep them working optimally and allows you to evaluate their performance. The IQ-4X features four independent channels, which means that different functions and different types of cells can be used simultaneously; such as charging LiPo and NiMH cells at the same time. A large size LCD screen and bright LED, display data and provide function status monitoring. Extra charge settings (LiPo/Life charge end voltage, delta-peak, maximum charge temperature) are available, allowing the user to fine tune the charge characteristics. The charger is also equipped with a 5V/1A USB port to recharge mobile devices. The Team Orion design and a wide range of functionalities make this charger a unique product on the market.

Features:

  • 4 fully independent charge channels
  • Charge/discharge/cycle different types of batteries simultaneously
  • Charge, discharge, refresh, break-in, cycle mode
  • LCD screen displays charged/discharged capacity, internal resistance, average voltage, charge time, temperature (NIMH only), charge/discharge/cycle history
  • Compatible with NiMH/NiCd AAA/AA batteries and single cell 3.7/3.3V LiPo/LiFe batteries
  • Equipped with Mini-Z LiFe and Ultra Micro LiPo connectors
  • Adjustable Delta Peak Auto Cut-Off for NiMH/NiCd batteries
  • Adjustable charge end voltage
  • USB 5.0V/1A port for charging mobile devices
  • Adapter cables for JST, flat micro and square micro connectors available separately

Specs:

Adjustable Charge Cut-Off: Y
Charge Channels: 4
Input Voltage: AC 110-240VAC 50/60Hz AC 110-240VAC 50/60Hz, DC 11-13V DC 11-13V
User Interface: LEDs/Buttons LEDs/Buttons
Charge Current: 2.5A
Charge Power: 6W
Discharge Current: 1.5A
Discharge Power: 1.5W
Charging Capability: AA NIMH/EZ AA NIMH/EZ, AAA NiMH/EZ AAA NiMH/EZ, LiPo/LiFe/NiMH 1cell (4pcs) LiPo/LiFe/NiMH 1cell (4pcs)
Delta Peak: Y
Adjustable Delta Peak: 4-30mV (default 5mV)
Charge Modes: Break-In, Charge, Cycle, Discharge, Refresh, Storage
Adjustable Max Charge Temperature: 55-70°C
Adjustable Trickle Current: 30mA
Charge and Discharge Data Storage: Y
Multi-Protection System: Y

Dimensions and Weight:

Length: 155mm
Width: 115mm
Height: 49mm
Weight: 347g

Advantage IQ-4X Charger (AU-Version) – ORI30255
Advantage IQ-4X Charger (JP-Version) – ORI30254
Advantage IQ-4X Charger (US-Version) – ORI30252
Advantage IQ-4X Charger (UK-Version) – ORI30251
Advantage IQ-4X Charger (EU/CH-Version) – ORI30250

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Tips for Getting Started with Electric Airplanes

Tips for Getting Started with Electric Airplanes

Today, more than ever we are enjoying a literal “Golden Age” of RC electric flight. The amount of quality motors, batteries, controllers and connectors is just about limitless as are the types and sizes of airplanes you can fly with E-power. Even though there are plenty of plug n play packages out there where you get everything needed in one box, the newcomer can find it difficult get started. Whether you are a beginner or an experienced RC pilot, if you’ve never experienced an airplane with clean, quiet electric power, there are some basics you need to know to be successful. Let’s get started.

opener

Today, there are all types and sizes of electric powered models, take your pick.

The first thing that you need to understand with electric airplanes is you have to look at the entire power system as a whole. One that will work together for maximum power and efficiency for the plane you are flying. And with that, you have to understand how much power will be needed to fly your plane safely. Whether you’re flying a lightweight micro indoor flyer or a large 3D aerobatic plane, its performance is based on the amount of power it develops relative to its ready to fly weight. If you get an ARF model airplane, then everything will be included and you’re good to go, but if you are putting your plane together with separate airframe and power system components, then you have to know what will work together.

types

From trainers to sport planes, gliders and electric ducted fan jets, the choices are endless.

Power

Electric motors, propellers and battery packs along with a suitable electronic speed controller make up your power system. But you have to use the correct combinations of equipment for your system to operate properly. To determine the power of your model’s power system, you need to measure the voltage and current while the motor is running. The three important parts of the power formula are amps (A) , volts (V)  and watts (W). But before we can talk about selecting power systems, we need to understand some very basic things about electric power.

motor

Picking the proper electric motor and propeller is a very important first step.

A watt is the unit of electric power in the same way that horsepower is used to express power for an internal combustion engines. You produce a certain number of watts by moving electricity through a device that converts it to power. Movement of electricity through a power system is described by the term ampere (amp), and the force that causes it to move is the volt. The basic relationship between these units with the equation Watts = Volts x Amps (W=VxA.). The most important thing for modelers to understand is that you can produce watts by using a lot of volts and just a few amps or you can use a small amount of voltage and lots of amps. It all works together. What this means is you can use a small amount of battery voltage and a large propeller diameter/pitch size or a larger battery voltage and a smaller propeller depending on the requirements of your model. And to properly power our models we can use a simple rule called the “Watts per Pound Rule”.

Watts per Pound

This categorization is a loose, flexible way to estimate the amount of power needed for a specific size airplane while giving the performance required for safe flight. The rule is really just a guideline to determine how many Watts of power are needed per pound of airplane weight and is expressed as W/lb.

•             50W/lb. or less.  Very lightweight micro RC and slow flyers.

•             50 – 75W/lb. Sport powered sailplanes and gliders, basic trainers, lightweight scale planes, Vintage RC and RC Assist Free Flight designs.

•             75 – 100W/lb. – Basic sport flyers, intermediate aerobatics. scale low-wing designs and medium size warbirds.

•             100 – 150W/lb. – Advanced aerobatics, pattern flying, 3D planes, larger warbirds and EDF jets.

•             150 – 200 plus W/lb. Unlimited 3D aerobatics, warbirds and large jets.

–Fast Fact: 746 watts = 1 horsepower

Batteries and Charging

charger

Having a quality multi-type battery charger is an important part of the electric modeler’s workshop.

Compared to the NiMH and NiCad (nickel metal hydride and nickel-cadmium,) battery packs we used just a few years ago, the new generation of lithium Polymer (LiPo) battery packs (often referred to as Li-poly) have totally altered our definitions for power and flight duration. Where the older types of batteries offered 1.2 volts per cell, (1V under load), Lipo cells offer a nominal voltage 3.7V per cell and they provide much larger capacities along with an impressive weight saving. More voltage and more capacity and lighter wing loadings have really improved our airplane’s flight performance.

C-Ratings

LiPo batteries must be charged carefully and with chargers designed specifically for LiPo battery packs. Though there are many new Lithium battery packs on the market with extreme charge and discharge ratings, for the best longevity of your packs you should use a 1C charge rate. (1 times the capacity of the battery) Example: 3.3A for a 3300mAh battery capacity.

batteries

Lipo battery packs are the most common used today. It is important to pick the correct one for your model’s power system.

As with most things in RC, extremely high performance RC Lipo batteries with very large capacity ratings have become very popular. Some of these high performance packs have very high charge and discharge ratings up to 5 to 15C charge rates and 45C (continuous) and 90C (burst) discharge ratings.

Safety Warning: Because of their internal chemistry, extreme care is required when using and operating LiPo battery packs. Overcharging a LiPo battery can cause the pack to burst and vent violently and can cause the pack to catch fire. As for over discharging, most ESCs allow you to set a low voltage cutoff or use the default which varies by manufacturer. 3.0v is the absolute minimum anyone should use as allowing Lipo cells to go below this voltage will damage them. As with any high-energy electrical equipment and battery packs you should always carefully follow the manufacturer’s instructions for proper use.

Fast Facts: LiPo Packs

  • Unlike other types of batteries, lithium polymer batteries can be stored for one to two months without significantly losing charge.
  • Lithium batteries should not be trickle charged
  • Typical maximum and minimum voltage for Lipo cells should be 4.23V and 3.0V volts per cell respectively.

Connectors

connect

Like airplanes, battery connectors come in several styles and ratings.

Connectors are an important element in any electric power system, and you’ll find them in between motors and ESCs and between the ESC and the battery pack. The most important thing to remember is to use the proper size connector for the battery and power system being used. Most of the battery manufacturers today include connectors already attached to the power leads or at least include them in an accessory bag. Using a low quality connector or one that’s too small increases resistance in the wiring and this translates to heat and lose of power. As a rule, you should use as few connectors as you can to maximize efficiency. Many experienced modelers will eliminate the connectors between the motor and ESC by soldering the power leads directly together.

adaptors

Adaptor cables help you manage your battery cha

Most brand name electric equipment has its own brand and type of connector and you need to use the matching type to charge your battery packs. You can however, simplify your life by switching all of your battery and ESC connectors to a generic one. This will then allow you to mix and match battery packs between airplanes and you can use the same charger to service your battery packs. If, the charger has the proper settings to match your packs. The most common at Deans Ultra T-configured connectors and Anderson Powerpole (APP) (also referred to as Sermos connectors). The Deans require soldering and some heat shrink tubing, while the APP connectors can be soldered or crimped onto the power leads with a special crimping tool.

lineup

At the annual NEAT Fair in Downsville, NY, the electric power airplane hobby is highlighted for all to see.

Glossary:

Ampere (Amp): The standard unit of electric current. The current produced by a pressure of one volt in a circuit having a resistance of one ohm.

Battery Eliminator Circuit (BEC): – A circuitry that allows the battery that runs the motor to also power the receiver and the servos. This is often built into the ESC

Brushed Motor: The traditional type of electric motor where brushes make contact between the rotor and the stator. The touching of the brushes essentially creates the timing and current to make the motor spin correctly.

Brushless Motor: Type of electric motor used in RC electric aircraft. Brushless motors are much more powerful than traditional brushed motors, and are commonly used in electric aerobatic aircraft. They can be inrunner or outrunner motors.

Current: The flow rate of electrical energy. Measured in Amps

Capacity:  Is a measure of how long you can draw a specified current from a battery. It is measure in Amp Hours (Ah), or more commonly for the scale of equipment used for electric flight, mill-Amp Hours (mAh).

Electronic Speed Controller (ESC):  The thing that controls how much current is given to the motor and hence how fast the motor runs. Often they have a BEC (see above) built in.  There are two main types – brushless and brushed.

Horsepower (HP): A measure of the rate of work. 33,000 pounds lifted one foot in one minute, or 550 pounds lifted one foot in one second. Exactly 746 watts of electrical power equals one horsepower.

Inrunners: Get their name from the fact that their rotational core is contained within the motor’s can, much like a standard ferrite motor. They run inside the can.

KV:  A rating for brushless motor that equals a 1000 RPM per volt.  So a 5KV motor would spin at 55,500rpm approximately if you applied 11.1 volts (3s).

Li-Po: Stands for lithium-ion polymer battery. These are the most modern kind of battery pack being used in electric aircraft. They provide enormous amounts of power for their size, especially when used in conjunction with a brushless motor.

 mAh (Milliamp Hour): A measure of a battery’s total capacity. The higher the number, the more charge a battery can hold and usually, the longer a battery will last under a certain load.

NiCD:  Abbreviation for nickel cadmium. They are a form of rechargeable battery cells used in radio control gear as well as motor battery packs. NiCDs are being used less and less these days, as NiMH and Li-Po batteries take over.

NiMH: Abbreviation for nickel metal hydride batteries, they are the successors to NiCDs with much better performance and up to 3 times the capacity for an equally sized battery. Only Li-Pos top NiMHs.

Outrunner: The other type of brushless motor, where the outer shell, or ‘can’, of the motor rotates with the shaft. The extra inertia produces more torque, so outrunners are more powerful than inrunners and rarely are geared.

Power:   For electric models this is a product of voltage and amps and is measured in watts.

RPM (Revolutions Per Minute): The number of times an object completely rotates (360 degrees) in one minute

Voltage: A unit of electromotive force that, when applied to conductors, will produce current in the conductors. Voltage is also referred to as electrical pressure.

Watt: The amount of power required to maintain a current of 1 ampere at a pressure of one volt when the two are in phase with each other. One horsepower is equal to 746 watts. Watts are the product of volts and amps.

meter

A power meter is a handy piece of equipment to have to check how your airplane power system is operating.

 

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The Best RC Commercial Isn’t Trying To Sell RC

the-leatherman-leap-large-10

We all know the Leatherman name that made multi-tools famous. Well, they have a new product called the Leap, which is a multi-tool geared towards a younger 9-years-old and up demographic. That’s all well and good and I like the idea, but what really got my attention was the commercial they are running to promote the product. The 30-second spot may just be one of the best RC commercials I’ve ever seen. It has aired on the Discovery channel and may just promote Traxxas and RC in general better than it sells the Leap.

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Synchronized Aerobatics Video

Synchronized Aerobatics Video

What’s more exciting than aerobatics, complete with wingtip smoke? Adding another aircraft, of course! Father and son team Andi and Tim Schaerer perform precision aerobatics with large Fox S1 Swift gliders in Red Bull colors. Tow pilot Thomas Hoffmann gets the gliders to altitude, and then the team puts on a fantastic show. Our thanks to RCScaleAirplanes for taking this video at the Swiss Flugtag at Hausen am Albis and posting it on YouTube. It’s worth noting that both Shaerers are championship pilots in their own right, and their team performance is truly mesmerizing.

Model Airplane News - The #1 resource for RC plane and helicopter enthusiasts featuring news, videos, product releases and tech tips.