Merger with Microdrones Brings More R&D Possibilities for Schübeler

Gunter Zielke created the first integrated smoke system for an EDF jet with support from Schübeler Technologies.

Electric motors are increasingly being used in aeromodelling projects to achieve a more realistic sound, feel and flight. In order to achieve the same accurate effects as conventional combustion models, ingenuity and extensive technical know-how are required. Gunter Zielke faced these challenges and enhanced the results by combining a smoke system for electrically powered model airplanes. Together with Schübeler Technologies, he created the first EDF jet with an integrated smoke system, in which the smoke can be switched on and off. The result: an electric model RC extreme jet airplane that can hardly be distinguished from a real airplane, both visually and in terms of the flight sound.

German engineering with a passion

Gunter Zielke always had a passion for flying RC model planes and jets. The German engineer began his aeromodelling career at the age of 15. Today, Gunter is the CEO of Smoke-Systems EL. His company developed a smoke system designed for RC model planes and jets. Working closely with the team at Schübeler Technologies he was able to integrate the first EDF jet with his patented smoke system. If you are looking to add realistic smoke effects to your model plane or jet and want to learn how you to integrate electric ducted fans from Schübeler Technologies, Gunter is your man.

First steps in the development of smoke systems

In 2009 Gunter started to plan, design and build his first big electric airplane. "Big engines were already available as were the first big batteries,” Gunter said. “But there was no electric smoke system for an electric airplane on the market.” 

Combustible engines were able to incorporate a smoke system from the start. “You only had to inject oil into the hot Exhaust system, and then you will have steam”, explains Gunter. “But in an electric airplane, there’s no combustor engine and therefore, you have no hot gasses.” So, he decided to create his smoke system to give aeromodellers with electric jets the chance to enhance their flight with realistic effects. But it wasn’t an easy project. “I was told it is physically impossible to do because the power you need is very, very high, for a liquid to become steam,” said Gunter. “You need much more power than is available.”

Schübeler Technology enhances the vision 

Gunter had to make various enhancements and fine tune his smoke system to get it working correctly. After some attempts, he decided to put the smoke tubes in the wingtips. On real airplanes, the vapor trails spin off the end of the wingtips. Gunter considered this and realized he could design the smoke system to simulate the vapor trails by implementing a G-Force Sensor. 

“When you think about real jets and when they do high-G maneuvers in very sharp curves, you will see small white trails at the wingtips”, says Gunter. “I could simulate that in the jet. And that was the reason why I need a jet to show this effect on the air shows.” 

As he started building an EDF jet as a demo model for the smoke system, he searched on the web, what kind of electric-driven fans are available and soon discovered Schübeler Technologies. He got in contact with them in 2018 and explained what kind of jet he would like to build. Schübeler was immediately interested. "They told me they would like to work with me,” Gunter explained. “They said, ‘Tell me what you need, and we will find a solution.’" The solution they settled on was to build a large-scale Eurofighter with electric-driven fans. “Together with Schübeler, we built the whole setup of the impellers, controllers and the battery packs.” 

Working with Schübeler helped speed up the progress of Gunter’s EDF jet.  “I produced the computer drawings, and they built the thrust tubes for me,” said Gunter. “The tubes Schübeler delivered were very light. I think 70 grams, very low from the weight. And they fit perfectly in the location where it should fit in the fuselage.” 

Another important point was the selection of the motor in the fan. Schübeler and Gunter discussed requirements like flight time, weight and speed. They put together all data and Schübeler recommended the best engine for Gunter to use.

And he is fully satisfied with this solution: “From the maiden flight, everything works perfectly. And we’ve flown over a year with this jet and have had no problems with the engine overall. It's been up and running right from the first time.”

Gunter is not the only pilot that can take his passion to the next level. Other aeromodellers can also benefit from Schübeler’s know-how. “If anyone wants to build an EDF jet, it doesn't matter how big it should be, go to the Schübeler website and see what kind of engines they have. This is made in Germany and it's running very well”, recommends Gunter. “If you have any questions talk to them, they will give you the outright answers.” 

Quick and easy smoke implementation

It’s very easy to outfit an existing model with the Smoke-EL system: “If you have an electric airplane, you already have a big battery to fly the plane and you can use the same battery for the smoke system. The implementation is very easy!”, assures Gunter. “We did it already on the airfield in less than three hours. You only have to install a small box, a SmokeDriver™which controls the whole system, a small pump and a very small tank.” 

All of this equipment is housed in the fuselage. On the wings, the system requires one hose and one cable to get attached – the hose for the oil, the cable for the power. Small smoke tubes get mounted at the wingtip. The receiver requires one free channel, to activate the smoke system. Another benefit is the fact that you only need 100 to 300 milliliter oil within one flight.

A Small sacrifice for a great effect

The implementation of the entire system adds nearly 800 grams, including the oil, to the weight of the model. 1000 mAh of power are required from the battery per flight. So, if you have an electric airplane like the Schübeler jets, you expect to sacrifice one minute of flight time. “You lose nearly one minute of the flight time. But I think it’s worth it to create the great smoke effect on the wings,” affirmed Gunter.

There are no specific enhancements or additional maintenance people need to buy if they go with the smoke system. However, you do need to use the special smoke oil from Smoke EL. “It takes more than one year to create this oil because the oil has a very low steam point. The steam point has to be very low to save electric power”, explained Gunter. “Otherwise, users have to clean the tubes sometimes. That’s it.”

Future Plans

Gunter is now exploring how to create colored smoke. “People all over the world ask me which different colors are available. For now, the only answer is white, because it is steam and steam is white. So, I am looking for a solution to create colored smoke,” announces Gunter.

Impressive live performances

To get a good impression of this outstanding system you have to see it in the air. Gunter had a great opportunity in Austria to demonstrate its capabilities. “This year it was very difficult for us to present our solution. We didn't have many air shows. However, with the Eurofighter, I was able to participate in a great demonstration in Austria,” says Gunter. 

At this show, his jet flew in formation with two other Eurofighters, but only Gunter’s was electric. As the organizer realized the speed and performance of the electric Eurofighter, he allowed Gunter to fly within the program. “We flew a formation with three jets, two with gas turbines, and mine with two EDF engines. There was no difference in performance and my jet was definitely not the slowest!” 

Furthermore, the air show in Austria showed that the sound of the Eurofighter is great. “It sounds like a silent turbine, and you can't hear that it is electric-driven. The sound is very cool!” 

Next year Gunter will also try to fly in other countries. The EDF-Jet from Schübeler will probably be presented at air shows throughout Europe. Until then, you can see videos at www.smoke-systems.com or www.smoke-el.de. There is also a movie of the jet to download or to see at the https://www.edf-jets.de website. “I encourage you to watch these videos,” Gunter teased. At first, you might not be sure if you are looking at a full-sized jet or an aeromodel.” 

 

 

Model airplanes conjure up plenty of “standard” imagery – putting them together, adding a little glue, and heading to the park to see how she flies.

But there’s so much more to the world of jet aeromodelling, and now may be the perfect time to get started in this rewarding pursuit.

Through the lens of Brett Becker, a noted expert and award-winning model aviator with more than three decades of experience, our latest podcast explores everything the world of model aviation and competition has to offer. Listen in the player or read the following summary.

 

Meet Bret Becker

Bret Becker is an expert and award-winning aeromodeller who’s been fascinated with aviation since he first experienced the movie Top Gun as a kid. The adrenaline rush from the film, combined with being able to see the Blue Angels and Thunderbirds at air shows ignited his passion for jets and launched him into the world of model airplanes.

He acquired an early start in high speed pylon racing and over the years developed an appreciation for scale models. It turned out that the world of R/C Jets captured his interest for both high performance flying and scale all in one satisfying hobby.

Over the past 30 years, he has honed and refined his skills as a designer, builder and pilot of model aircraft, winning accolades and awards for jets that have set speed records, been featured in articles, competed at scale competitions and even retired to the Academy of Model Aeronautics Museum and Hall of Fame.

The Evolution of Model Aviation

Model airplanes have come a long way. In Becker’s own journey in model aviation, he’s seen models get increasingly complex and inch closer and closer to the real jets and planes he admired so much as a child.

“Things have changed so much since I first started,” said Becker. “Prior to the internet, the way that you would find out what was the latest and greatest was either going to trade shows or reading the most recent magazine that was on the shelves at a magazine stand or bookstore.

Now, like so many aspects of modern society, the advent of the internet and the ballooning growth of technological innovations has allowed more people with a passion for model aviation than ever before to find others who share that passion.

Perhaps the biggest change, however, is simply the technology behind some of the world’s most impressive model airplanes and jets.

Electric Ducted Fans and Other Technological Leaps Propel Model Aviation to New Heights

In the past, the only way to make a jet-powered model airplane was to use a combustion engine, an expensive, time-consuming and unreliable proposition.

“Back 20 or 30 years ago, there was a very small community of people who were actually willing to put all of that effort into a model that might not even survive its first couple of flights,” Becker said.

Since then, with the help of companies like Schübeler Technologies, electrically powered models are more reliable, allowing them to last longer – and for new entrants into the field to start from a better position.

It was actually an introduction to Daniel Schübeler, in the late 90’s, that gave Bret a glimpse at the future of model jet performance.  While attending an aeromodelling event in San Diego called the Mid-Winter Electrics, Daniel was one of the very few people at that time to have an electric ducted fan from Schübeler technologies and a custom airplane called the Vector.

“Nobody had really seen anything like this in terms of its performance,” Becker said. “He was able to put on an incredible high-speed flight that was longer than anyone else. We were able to see this was the future. And now we’re here!  Jets are more accessible. You can get lithium power batteries. The cost has come down and it's just allowed the average modeler to be able to have that performance and make it affordable.”

Schübeler’s electric ducted fan solutions are part of a movement that’s seen such technology become the most popular choice for model aviation, particularly for airplanes under 30 pounds or so. They don’t use fuel or require tweaking and caring for many moving parts, are generally consistent and reliable over the lifetime of the plane and are more lightweight and portable.

“Nowadays, you can be fairly early in the hobby with very little experience and buy something off the shelf and be successful,” Becker said. “They're much more convenient. You can fit them in your car. You don't have to deal with fuel like a turbine jet would. For the average modeler, electric powered airplanes are a very convenient way of taking a day off on the weekend, going to the field, having a couple batteries charged, and going out there and having fun without having to work on the airplane at the field.”

The electric ducted fan technology from Schübeler Technologies is enabling modelers to build more advanced jet aircraft, whether it be for scale competition or for custom designers. Aeromodellers are now able to design, build and fly model airplanes that would have never previously been possible. Being able to rely on the EDF technology and their power system allows the designer to focus on another aspect of the model that might be challenging.

“You can design airplanes that are difficult to fly, or airplanes that are designed to go really fast, or airplanes that are supposed to be in the air for a really long time,” Becker explained. “Now, there is a trend in that electrics are getting bigger. And And Schübeler makes some ducted fans that are larger than any of other manufacturers that I'm aware of. They are very high-end, and they can power air frames that you would think that only jet powered turbine aircraft would otherwise be able to fly. And those are absolutely incredible and they're very high end. But again, they are very efficient and reliable.”

Bret’s model XB-70 Valkyrie

One of Bret’s award-winning projects was a model of the North American XB-70 Valkyrie. The inspiration for this build stemmed from a move to Dayton Ohio, home of the National Museum of the U.S. Air Force, which has the only remaining full size XB-70 in the world.

“As a fan of aviation,” Becker recalled, “I was looking forward to seeing the XB-70 at the museum, but I wasn't expecting much more than that. However, seeing it in person gave me a completely different perspective for the size and the complexity of this aircraft. I thought to myself, it would be incredible to make an RC version of this scale jet.”

At the time, there were not many modelers working on XB-70s, other than a few small kits that were not extremely detailed or representative of the full scale and impact of the jet. Becker was thinking of doing a scratch build by himself and reached out to a friend in California who had built one in the past.  As luck would have, that friend had crashed his custom designed XB-70 and was willing to let Becker use model to jumpstart his project.

“The plane needed some significant repairs,” Becker said. “So, I brought it to Ohio and spent a year gutting it, re-installing everything and making some structural changes to it. I also spoke to Daniel Schübeler at an event, and he was very interested in the airplane and the project. Schübeler fans were the go-to and they would provide the longest flight time that I could get with the space that I had for batteries.  Daniel was extremely helpful in providing advice on what fan units it would take to get an endurance of six to seven minutes for scale competition.”

In early 2017, Bret’s XB-70 was competition worthy and he received his first invite to participate in the elite Top Gun Invitational. Top Gun is a world famous, invitational scale competition for R/C aircraft. An XB-70 model had never previously competed in scale competition and its electric ducted fans added to its uniqueness. 

In 2017, Bret completed the required flight rounds and impressed the Top Gun Community receiving a Special Recognition award.  In 2019 Bret and his XB-70 received a 5th place finish in the expert class. 

Bret’s model Lockheed U-2

The current project that Bret is working on, a Lockheed U-2C jet model, will also be competing in the 2020 Top Gin Invitational. However, there’s more on the line than just winning an award. This project represents a legacy build designed by an aeromodeller named Rene Saenz.

“This was a composite project that Rene worked on for several years,” Becker explains. “He was extremely passionate about this model and the quality of the work that he did was incredible. It has thousands and thousands of rivets, which represent the full-scale rivets on the airplane, both on the wing and the fuselage. Unfortunately, Rene passed away and never had the chance to see his model completed. I have been given the honor to take this project and complete it as Rene would have liked.”

For the past 4 months Becker has been working on the project, motivated by the ingenuity of Rene Saenz, who had already crafted a design that is Top Gun worthy.  Bret is working on making the first flying U-2C from Rene’s molds. The plane will be designed to use a 120 millimeter EDF from Schübeler Technologies to help achieve the a seven minute flight time to compete.

“In scale competition,” Becker explains, “they're not only judging the airplane on the ground, but they're also judging how realistic does it look in the air. When it comes to model jets, sound is a big component, and there is nothing that sounds like a Schübeler fan which sounds like a turbine. The sound is so realistic and it's always appreciated by spectators.

Bret will be competing with his U-2C in the32nd Annual TOP GUN October. 28th - Nov. 1st, 2020 in Lakeland Florida.

The Best Time to Start Flying is NOW

Based on more than 30 years of experience, Becker doesn’t think there’s ever been a better time to get into aeromodelling than now. There are complex model airplanes available right out of the box such as an F-18 Hornet or an F-14 Tomcat. These kits make it easy and fun to get started and flying fast. Then, hobbyists can develop as they see fit.

 “I think the most important part of this hobby is to keep it fun,” Said Becker.  You can go out and purchase an airplane and if you want to make it unique put on your own paint scheme. If you're interested in having the highest performance of any jet at the field go research the latest and the greatest technology and try to upgrade your jet. Those small additions are what make the hobby fun and make each project something to look forward to. Half the fun is envisioning what you want your model to either look or perform like, and making that happen, making that dream a reality. I think if you keep that in mind, you're never going to stop loving the hobby.”

To learn how Schübeler is leading the way in the industry, contact us today.

FIX TERM (1 YEAR, EXTENSION POSSIBLE); FULLTIME
LOCATION: PADERBORN, GERMANY

 

Microdrones is an expanding, innovative company in the field of fully integrated UAV solutions for surveying and mapping with branches in Germany, France, USA, Canada, China, Australia and the United Arab Emirates.

Schübeler Technologies has been a trademark of the Microdrones Group (www.microdrones.com) since 2018.

Schübeler Technologies deals professionally with the development and production of efficient drive technology and lightweight components. We have deepened our theoretical and practical knowledge and have always designed and tested innovative solutions. After a significant increase in the office and production area, we are now producing various carbon fiber-reinforced plastic axial fans, lightweight components, industrial parts, motors and more at a high level of added value in our plant in Paderborn.

For our team in Bad Lippspringe (Paderborn) we are looking for a motivated light aircraft manufacturer as a production employee for the manufacture of carbon components as soon as possible.

YOUR TASKS:
  • Manufacture of carbon components
  • Adjustment, repair and assembly work
  • Function tests (also electrical) and quality control
  • Laminating and cutting processes, gluing work, machining work
YOUR SKILLS:
  • Completed training as a light aircraft builder or, alternatively, several years of experience in the private or professional field in model construction / light aircraft construction
  • High quality awareness and willingness to learn new things
  • Manual skills, especially fine motor skills
  • Experience in handling hazardous substances and a correspondingly consistent way of working
  • Experience in dealing with cutting machines (turning, milling, drilling)
  • Flexibility with regard to the organization of working hours in flexitime through to shift systems
  • Experience with adhesives, fiberglass and carbon fiber fabrics is an advantage
  • Ability to work in a team and an awareness of innovation
WHAT YOU CAN EXPECT FROM US:
  • Exciting products and diverse tasks
  • A pleasant, familiar working environment and independent work
  • Free water, coffee, tea and fruit
  • high occupational health and safety and flexible working hours with time off

Microdrones stands for diversity and equal rights. None of the above expressions should be discriminatory in terms of age, sex, ancestry, religion, belief or experience. We confirm that we are pleased to accept all applications from candidates of any age, gender, ancestry, religion, belief or experience.

Location: Paderborn

Work conditions: fix term (1 year, extension possible); fulltime

Microdrones is an expanding, innovative company in the field of fully integrated UAV solutions for surveying and mapping with branches in Germany, France, USA, Canada, China, Australia and the United Arab Emirates.

Schübeler Technologies has been a trademark of the Microdrones Group (www.microdrones.com) since 2018.

Schübeler Technologies deals professionally with the development and production of efficient drive technology and lightweight components. We have deepened our theoretical and practical knowledge and have always designed and tested innovative solutions. After a significant increase in the office and production area, we are now producing various carbon fiber-reinforced plastic axial fans, lightweight components, industrial parts, motors and more at a high level of added value in our plant in Paderborn.

For our team in Bad Lippspringe (Paderborn) we are looking for a motivated production worker for the manufacture of carbon components as soon as possible.

YOUR TASKS:

  • Manufacture of carbon components
  • Adjustment, repair and assembly work
  • Function tests (also electrical) and quality control
  • Laminating and cutting processes

YOUR SKILLS:

  • High quality awareness and willingness to learn new things
  • Craftsmanship - Hobbies in the area of sewing, handicrafts or model making are very beneficial
  • Patience and Perseverance

WHAT YOU CAN EXPECT FROM US:

  • Exciting products and various tasks
  • A pleasant, familiar working environment and independent work
  • Free water, coffee, tea and fruit
  • high occupational health and safety and flexible working hours with time off

Schübeler EDF products provide cleaner option for RC aeromodellers to fly with less noise, more efficiency

There’s a cleaner, quieter way to fly radio-controlled, high-speed jet model aircraft without a turbine-powered engine.

Electric duct fans (EDF) operate with less noise and more efficiency while still offering RC aeromodellers the potential to experience the thrill of seeing their winged replicas soar through the air. EDF planes run with multi-bladed propellers, taking in air and spinning at high speeds.

“When all components have been carefully selected and installed, the customer can expect a model aircraft with long-lasting excellent performance and reliable propulsion,” said Christian Wileschek, sales expert for RC business with Schübeler Technologies.

“But what is also important is that is quieter than a gas turbine” and doesn’t emit fumes, Wileschek added. 

 

Founded in 1997, Schübeler Technologies has built a global business by providing advanced fan propulsion jets and lightweight composite materials. Schübeler offers a full lineup of products including turbo fans, jets, compressors and pumps, along with an RC sports hobby division that makes electric duct fans and components for high-speed jet model airplanes. 

But RC aeromodelling is more than just a business for Wileschek and Daniel Schübeler, founder of Schübeler Technologies.

Wileschek first got interested in aeromodelling as a child. He drifted away from the hobby as he grew older before meeting Schübeler in 2010 and then going to work for him.

“It didn't take long for the fascination to get back in my head. Daniel motivated me to get active again,” Wileschek said.

Combine that passion with quality work and experience in the business, and it’s no surprise that Schübeler has built a reputation of providing comprehensive service for aeromodellers looking for a smooth EDF conversion.

“We look into every detail: the aerodynamic features of the fan itself, rotor blades, stator blades, the inlet design, the outlet design,” Schübeler said. “That’s our approach to come up with a great EDF solution. We look at the whole project for the customer.”

A technical playground

Aeromodelling covers a wide array of models including gliders, propeller planes, helicopters and jets, with each aircraft offering different challenges. But while Schübeler Technologies has made successful forays into traditional aviation, aeromodelling remains an important focus of the business. 

“The development of products for aeromodellers, especially for electrically driven jets, is something that’s still very special,” Schübeler said.

Technically, it’s a demanding task, making it especially important to produce high-quality products for hobbyists that are efficient and affordable. 

“It’s technical playground for us here in the company,” Schübeler said. “I mean this very seriously - in aeromodelling, you have no limits.”

Tailwind and possibilities

Model jets propelled by turbines fueled by kerosene soar using a lot of energy. EDF planes run on batteries that have improved over the past two decades thanks to technological developments in the industry.

EDF planes that run on batteries have other advantages too. 

“The development of safer transmitters, brushless motors and the LiPo battery technology have given the model aircraft hobby a lot of tailwind and possibilities,” Wileschek said.

Some RC aeromodellers may be looking to switch to EDF because airfields may have noise restrictions that in effect ban the use of combustion engines. Some hobbyists may be tiring of the fumes that come with using kerosene. 

Or an RC aeromodeller might be convinced to make the switch just by taking an electric RC jet for a test flight. 

“The fact that it's possible to fly jets electrically with almost turbine-like sound and convincing performance, it's just great. And for jet model builders who are more electrically oriented, building a jet replica is the highest art,” Wileschek said.

Setting the standard

Schübeler Technologies takes pride in getting the details right, making the company the ideal partner for enthusiasts seeking to switch to EDF.

Schübeler can help customers figure out expected flight speeds and flying times, controller recommendations and optimized controller settings, offering service and advice.

“And then of course battery choice and size. So that sets our approach to come up with a great EDF solution,” Schübeler said. “So we look at the whole project of the customer.”

Noted Wileschek: “We have been setting standards for many years now. So, when a customer works with Schübeler, he can be sure to get a durable and safe product with excellent performance and sound, of course.”

Below, Schübeler and Wileschek offer more information through a tutorial on picking the right EDF technology for your plane.

How do you select the right size of fan for an airframe?

Wileschek: Selecting the correct fan size is based on the size of the air intake and the outlet area of the model. Each Schübeler fan has a certain fan swept area measured in square centimeters that can be found in the model number or description. For example, “51” in a model number would denote a fan swept area of 51 square centimeters. Ideally, this size matches or comes close to the size of the intake area of the plane. If the intake of a jet model airplane is too small, and you install a fan that doesn't match the intake area of the aircraft, the fan cannot generate full power. So it's important to compare size of the intakes and fan swept area of the EDF.

What about input power, motor size, and battery size? 

Wileschek: Selection of input power, motor size and battery capacity is based on the takeoff weight of the aircraft. In addition, most customers request a specific type of battery cells. They want to use, for example, 12S, or 14S, for the CARF Joker, or for a smaller EDF jet, like the Mini Avanti, it's the 6S. We recommend the right EDF setup with controller and a battery capacity to achieve a flight time of five to seven minutes. 

Schübeler: The Schübeler EDF setup is very efficient, which generates a very high thrust - so a very high performance. We can also offer a long duration setup. We have jet-like performance with the approach and we have sufficient flight time. It's maybe not super important for a smaller jet, but it's super important for a serious jet project. You don't want to lose your jet because the battery is empty. 

Are there other practical considerations for component installation?

Wileschek: Importance should always be placed on the installation of all components. The area between the air intake and fan should be as free as possible so that the air inside the fuselage comes very clean to the fan without too much turbulence. And all components such as cables should always be fixed properly because the fan sucks in everything that's not fixed well. In addition, it's necessary to attach an inlet lip to the fan so that the air can be sucked in very clean.

So when all the new gear is installed, how will flight performance compare to a turbine-powered RC plane? 

Wileschek: The customer can expect a model aircraft with long lasting and excellent performance, and reliable propulsion with a nice turbine sound. But what is also important is it will be quieter and a more pleasant experience than a gas turbine. 

Schübeler: With turbines, it's interesting. You cannot do so much wrong, but if you do things really badly wrong, your model burns. … It's a nice technology. I like turbines. But we are focused on electrically driven jets here, of course. With turbines, it's just more effort. It's maybe also a little bit more costly, because of service, maintenance and the price of a turbine. 

How fast can you go? 

Schübeler: If you install the EDF the right way, if you have a good frame, you can go insanely fast. With a sport jet, 350 kph is no problem. But with a special speed jet project that I am testing with a colleague, we’re aiming for 500 kph. We could go faster if we decide to go with a bigger EDF system. And I think the fastest turbine jet is close to 700 kph.

If you look at the practical side of aeromodelling, you want to go to your field, unpack your plane and start flying. EDF makes that possible. You install your batteries and you’re ready to go. Once your setup works - your  flying. You need a little bit of infrastructure for loading and you need to have three sets of batteries, but you can have a really nice day of jet flying with a proper EDF model. 

Cookies make it easier for us to provide you with our services. With the usage of our services you permit us to use cookies.
Ok