lapRF 8-Way Event Race Timing System

FPV and quad racing just entered into a new era. For those who participated in earlier races, it was always a hassle to mount some kind of transponder right before the race on their quads. Now during the races many of these got damaged and often many of them got lost as they have fallen off from the racers. The IR based sensor often did not pick up the passing quads because these were either too fast to detect – or just the sun simply changed positon and blinded the sensors.

lapRF 8-Way Event Race Timing System

The introduction of the RSSI based race timing systems managed to eliminate the above problems. No more transponders, no more problem with the sun shining in the IR sensor. The RSSI based timing systems lock on the video frequency of your FPV racer and detect the maximum signal strength as it passes through the gate under which the race timer is placed. While the personal race timers like the LapRF have only one receiver built in and was designed to pick up the signal from one quad – or time sharing with 2-3 racers, the 8-way event timer system has 8 individual 5.8Ghz receivers where every single one will be dedicated to measuring one individual racer. This increases the accuracy of the measurement dramatically above other systems.

Spectrum of the LapRF 8 WayInstead of using a standard receiver module in their 8-way timing system, ImmersionRC’s hardware engineering team designed a custom module, which can be calibrated on-the-fly to adapt to the different power levels found in races. Sensitive enough to detect passing quads, but selective enough to ignore adjacent channel interference. Heavily filtered to ignore off-band interference common at race events.
They also designed custom antennas with gate-shaped beams which let the race director precisely define the detection area of the timing system. These antennas are designed for RHCP/LHCP, and Linear polarization, covering everything that will be seen at a race event. To adds to the above benefits, the LapRF is just as comfortable in the digital world as analog. Many successful mixed Analog and Digital races have been run by race director Joe Scully with a great deal of success. The Connex Prosight transmitter signal is just as precisely detected as the analog TrampHV video signal. The Prosight TX units must be in fixed-frequency mode in order to properly work with the 8-way LapRF.

LiveTime FPV Scoring Engine

At the time of this writing, the software a race director should run to properly benefit from the advantages of the 8-way LapRF race timing system is the LiveFPV scoring engine from LiveTime. ImmersionRC worked  with the folks from LiveTime to improve the integration and support for the 8-way LapRF with their scoring engine. Joe Scully has run numerous races using these two systems and we could all benefit from the precise lap timing and race management of these two systems.

We also equipped the Fatshark RCC (Race Command Center) with an 8-way LapRF, and this way the FatShark Race Command Center can just show up anywhere, it takes about 30 minutes to deploy and connect the receivers and external equipment, then it is ready to race, This is the race flight line on wheels, it can be ready to race within 30 minutes of arrival. Please take a peak of the special 4 way Scorpion diversity receivers lined up on the side:

The 8-way LapRF is now available from New Generation Hobbies, please click on the ling below to purchase it:

lapRF 8-Way Event Race Timing System

Here is an update to this page after we received the first shipment. I prepared an unboxing video which was streamed live to Facebook and YouTube as well. Please check out the unboxing video below:

Back to School Fun Fly and Drone Race

Originally we were asked to host a drone racing event on August 26th at the Toronto RC airfield in Markham, Ontario. Unfortunately last minute the club decided to dramatically reduce the drone racing time and sessions throughout the event which would have caused quite a bit of downtime for people who dedicated their time to come and help us out with this demonstration.

Humber Valley RC Flyers however decided the grant us the use of their RC field for this event and loved the idea or us doing a drone racing presentation and race on Saturday, August 26th, 2017:

Back to Shool Fun Fly and Drone RaceMy discussion with the executives brought us to the point where the whole club’s approach is very positive towards drone racing and if this event goes well, the club may decide and work out the details for next year to create a drone racing area as well as a new membership category for drone racing. For this reason people and pilots who will come out to this event and will fly with us should consider joining the club for the next years flying season.

The agenda of Saturdays event is as follows:

8:00AM – 9:00AM – Race course and RV setup
9:00AM – 9:30AM – Continue setup and finalizing race course
– Registration and check in (MAAC membership card has to be shown)
– Joe Scully will register each pilot in his software as well as we need you to sign in on a sign in sheet as well for the club.
– Coffee and Timbits will be available on site provided by NGHobbies
9:30AM – 9:45AM – Pilots briefing, overview of safety rules and do’s and don’ts. During this time fixed wing flying will be possible.
9:45AM – 10:45AM – Practice rounds
10:45AM – 11:15AM – Fixed wing flying – time could be less if nobody wants to fly.
11:15AM – 12:45PM – Race heats
12:45PM – 1:45PM – Break, fixed wing flying and lunch – pizza, water and POP will be served by NGHobbies
1:45PM – 3:45PM – Race heats
3:45PM – 4:00PM – Announcements, close-up notes
4:00PM – 4:30PM – Tear down, pack and go home

To approach the field come to the intersection of Kipling and Steels and turn north on Kipling. From there follow the chart below made by Jorge Razon:

To the HVRCF fieldJust as a follow up, we had a great time on this race. There were a total of 14-15 pilots who came to race with us and about 10-15 spectators and club members. The day went by pretty fast, all pilots raced one battery after the other. Joe Scully started to pass on the family business to Marshall, and teaching him how to comment on pilots actions, etc.

The HVRCF club executive was quite pleased with how nicely this event was organized and how complex this operation really is. Since Humber Valley will be discussing during he winter the possibility of opening a permanent drone race track at our park, this event really brought us close to that by showing how coordinated the event is and how disciplined the pilots are. MAAC and Club safety rules were applied and enforced, and through this we won the possibility to go back there again.

Lastly enjoy some pictures from this event below. You can click on each picture to enlarge them.

Back to School Fun Fly and Race


FPV Racing Frequency Table

I have been to many ad-hoc races organized around our city and one thing was common – in almost every case there was a cardboard with a grid drawn up with permanent markers, names and frequencies on it, often not clearly visible and nobody really new if they were interfering or not with other people. For this reason I took some time to design this frequency table which is color coded, contains all the frequencies one could use for FPV racing. I did not include low bands, because those in many counties are outside of the legal frequency bands.

The frequency chart is color coded, easily visible, and groups are easily identifiable. You can run several heats as long as you keep fliers of other heats offline while one is flying.

FPV Racing Frequency Table

A low resolution version can be downloaded by right clicking on the image above, but in case you would like to purchase this printed on a 12″ x 18″ corplast board, please click the image above.

Some frequencies are close by, these can be used in the same heat – one or another. This is marked with the “OR” signal in the middle. The frequencies which should not be used in North America, this includes USA and Canada are crossed out with red.

EMAX 2205 Red Bottom Parts

The EMAX 2205 red bottoms have been in use now for over a year. These motors still seem to dominate the racing grounds, even though newer motors were developed since. some of the newer ones have better bearings, some even have ceramic ball bearings which will minimize the noise.

The EMAX 2205 however is still a strong competitor to most motors our there. Many people walked by to our store and were asking for parts on these motors. It seems that the low price on these motors have a toll on the quality of the parts they are coming with. We know for sure that the bearings are not the best, but they do the job. In most cases people start hearing the bearing noises after a few flights.

While it is very rare to bend the shaft of these motors, a hard hit to a soccer pole can do the trick. We have seen some requests for these as well.

To accommodate all these requests, we are now bringing you the most essential replacement parts for the EMAX 2205 red bottom motors. The pictures below link you to the product pages where you can purchase these.

The Ball Bearing:

Red Bottom RS2205 Ball Bearing

The RS2205 3mm Motor Shaft: RS2205 3mm ShaftThe RS2205 Bronze Collar: RS2205 Bronze Collar The RS2205 U Clip:RS2205 U-Ring U-Clip

Tramp HV 5.8Ghz Video Transmitter


The new Tramp HV Video transmitter is the smallest, lightest, high-power, high-voltage A/V Transmitter in the business, 31 x 20mm, with a slender 17mm waist, weighing only 4 grams! Even at this size, the traditional ImmersionRC 5V filtered camera power supply is also included. Twin ground cables from the tiny locking connectors ensure that noisy supply currents keep the camera supply clean. To cap it off, in addition to running directly from a 2s-4s (HV) LiPo, the TrampHV will happily run from a 5V supply already available in the quad.

Unboxing and first setup video:


  • – Smallest direct LiPo powered VTx in the business.
  • – TNR Touch-free wand control
  • – Traditional button + LED control of frequency and power
  • – 1mW -> 600mW linear power control
  • – All 40 standard channels
  • – Built-in thermal protection
  • – Factory power normalization
  • – Glitch-Free frequency changes
  • – Micro-power pit mode
  • – Additional channels for race events (Race Wand only)
  • – Retail regional locking without opening package

Pit Mode

The ImmersionRC TrampHV was the first transmitter to support Pit Mode, which was introduced successfully at the FPVAirShow in France. Pit mode transmits a tiny amount of power on a pre-defined frequency to allow for quad setup at a race event without disrupting the show. Pit mode on the TrampHV is a little different than other offerings, being controlled by race directors transparently at drone races. A race director can stay legal by choosing a pit frequency authorized for use at the event, which can be different for events in different regions. Programmed at the event using the Touch’n’Race wand.

Touch ‘n’ Race for Race Directors

Touch’n’Race, a patent-pending technology which helps both the casual racer, and race directors alike.
Transmitters are placed in Race mode upon arrival at a race event, and remain in that mode until the event is over. Race directors can, without powering up a model, define the frequency and power output of the transmitter, in 5 seconds flat before a race starts. As soon as the race is over, and the battery disconnected, the TrampHV reverts to it’s race-director defined mode. Massively decreased inter-heat times are possible with this technology, meaning more practice runs, more qualifiers, and races which start and finish on-time (a rarity in the world of drone racing today). More importantly, the chances of a race being disrupted by an accidental power-up in the pits are eliminated, a dream for race organizers.

Touch ‘n’ Race for Pilots

Why let race directors have all the fun?. The personal TNR wand* avoids dip-switch hell even in the local park. Touch-free programming of video transmitters before you launch, eliminating frequency collisions, eliminating the ‘what channel was I on last’ question, and allowing power levels to be modified between flights to adapt to local conditions. Note that the wand is not required to operate the transmitter. A traditional button + LED user interface may also be used to program channel, band, and power level.

Thermally Protected

We have all experienced long delays at the starting grid before starting a race. No airflow over the electronics and video transmitters overheating. Most video transmitters (even the higher end units) have no thermal protection whatsoever and will happily cook themselves and prematurely fail. The TrampHV is a little different. It constantly monitors the temperature of the Tx, and gracefully reduces power output to increase battery life and protect the transmitter. As soon as the props start spinning, it detects the temperature reduction and quickly boosts power output.

Screened for Protection, and Certification

The only Video Transmitter in this size and weight class with a fully screened RF deck, providing protection against dust, dirt and knocks, while ensuring smooth sailing through the RTT&E certification process. An optional plastic case can be easily installed to increase this protection even further, without adding excessive size and weight.

LapRF Certified

The TrampHV was designed alongside ImmersionRC’s RF Lap Timing system, with certified compatibility. LapRF eliminates the need for transponders on the quad for lap timing, and instead uses the energy emitted by the 5.8GHz transmitter on the quadcopter. Two LapRF versions will be available, a 16-channel race version for larger events, and a personal system no larger than a hockey puck for personal use (up to 4 pilots). Both versions sport a wireless connection to a smart phone for timing and configuration.


Another first, introduced by ImmersionRC at FPVAirRace, is technology which allows video transmitters to power up cleanly on their assigned channel without wiping out neighboring channels. Gone are the days when your fellow pilots need to hover safely why you power up beside them. This technology enables asynchronous race starts, where pilots join a race at any time without creating any interference.

Calibrated Power

Each and every TrampHV is factory calibrated to ensure precise power outputs, especially at the critical low-power race levels. No more cross-talk from 25mW transmitters which are instead emitting 200mW!, or worse, 25mW transmitters which emit much lower power levels. No more RF lap timing issues caused by pilots running wildly different power levels.

We Know Racing!

ImmersionRC has been involved in drone racing since the early days.
Creators of the ubiquitous RaceBand, and involved in providing technology for some of the largest racing events to date, we have poured significant resources into racing, and more importantly, learned from these events. Our employees race, we ‘eat our own dogfood’, and we will continue to advance the state of the art.


  • – Dimensions: L=32mm x W=14mm x H=5mm
  • – Weight: 4g (Tx only, without SMA cable)
  • – Power Output: Programmable, 1mW to > 600mW
  • – Channels: 48 standard, arbitrary using race wand
  • – RF Impedance: 50 ohms
  • – RF Connector: U.FL
  • – AV Connector: JST-GH, 6 pin, locking
  • – TNR Connector: JST-GH, 4 pin, locking
  • – Audio: Mono, Subcarriers on 6.0 and 6.5MHz (cloned)
  • – Modulation: FM, Audio and Video
  • – Pit Frequency: User/Race Organizer Definable
  • – Video Impedance: 75 ohms
  • – Power Requirements: 2s-4s HV Lipo
  • – Power Consumption:  ~4W max. @ 600mW, ~1.9W @ 200mW

TNR Wand:

The Tramp 5.8Ghz VTX shows it’s full potential in racing conditions. While many people who do not participate in racing do not realize, in race conditions, video interference kicked out many pilots from the air / race because somebody else behind the flight-line turned on a video transmitter. This is quite unfortunate and with the Tramp/TNR Wand combination it could be the thing of the past. When you go to a race, the race director will touch your Tramp with the TNR wand and that will put your Tramp transmitter into Race mode. In this mode even if you apply power to the quad/Tramp VTX, the power output will be minimal – down to under 1mW – which will allow you to troubleshoot in the pit even if you power it up. The low power output will prevent the transmitter from interfering with anybody else in the area – because your signal output is so low, that it will barely leave the table you are working on.

Tramp VTX TNR WandOnce you line up for the race, the race director will touch your Tramp again, this time assigning you the correct race power setting, band setting and channel setting. When you power your Tramp on, these settings will be in effect for the duration of the race. When you finished your race and you powered your quad racer down, the tramp will go back into pit mode.

The beauty of this solution is that the Pit mode settings are completely defined by the race director. This can be defined on a frequency which is not even used at the race, to allow a bit more power output for pit operations. This started to already redefine the safety around race events. The past few events which used the Tramp in conjunction with the TNR wand were faster, more eventful and the downtime was minimized allowing pilots to fly more often.

An unboxing video of the ImmersionRC’s TNR Wand can be found on our YouTube Channel. To Subscribe to our YouTube channel please click here. Alternately you can watch the video embedded in this post below:

We strongly recommend these products even for those groups which are racing together weekly in city parks. These will make your live way easier and will allow you to fly more often.

Modify 25mW SPMVA2500 for 1S operation

If you have not heard about the tiny whoop yet, then you have to come out from your bunker 🙂 This summer’s hottest item is the so called “Tiny Whoop”. This is in reality nothing else, just a beefed up “Inductrix” from Horizon Hobby. I already prepared a little article about the Inductrix, click here to read it.

This article however will describe how to use a better – 25mW transmitter/camera combo on the tiny whoop/inductrix. The SMPVA1000 from horizon hobby is a 5mW only transmitter which will work well without modification on the Tiny Whoop, but it will give you limited FPV satisfaction because the 5mW transmission power only. To increase the range and signal clarity, you need to use at least 25mW (SPMVA2500), which is available, however it was designed to be powered from a 5V power supply. This originally was designed to be powered from a minimum 4.8V power line by being plugged into an RC Receiver. If it is, you can even change the video channel through a PPM link.

Let’s take a look at the SPMVA2500 and what do we need to make this work from 1S (3.7V) battery. When you open the box, the 25 mW transmitter/camera combo looks like this:

25mW TX and CameraAs you can see, there is a servo cable sticking out from it, this can be powered from an RC receiver. We will show you how to modify this without actually removing the original cable. YOu can remove it on yours if you will only use it for the Tiny Whoop that way you will save a few grams of weight. So let’s see what you need to make this happen:

  • – one SPMVA2500 25mW TX and camera combo, you can get it from here:
  • – a small exacto knife or hobby cutter with blade no. 11
  • – fine tip soldering iron with temperature control
  • – needle nose tweezers
  • – a good magnifying glass, or good eyes 🙂
  • – solder wire
  • – some 28 gauge red and black servo wire
  • – 47uH micro choke to eliminate the interference coming from the motors

Once all these are in place go ahead and follow the steps below:

  1. Carefully remove the casing from the camera, this will save you a bit of weight.

To remove the camera plastic housing, you can use a small screw driver to push out the back plate as per the images below. Once the back plate is out, slide the camera out from the casing, be mindful of the little button on the top, be careful not to break that off:

2. Identify the pins you will need to solder your 1S battery leads to. Two pictures below should clearly identify which are the pins you will need to solder your 1 cell battery wires to. The GND stands for Ground and this should have your Black or negative connection and the 3.7V is the positive, this is where your battery positive line would go. Now, if you would only solder it on directly, you will get quite a bit of noise and interference when throttleing up. The interference comes from the brushed motors and it can ne eliminated using a small 47uH choke on the positive line.

The part number for the tiny choke to be used in this project is: 445-1964-1-ND and you can get this from or if you are in Canada:

Tiny choke

3. The hardest part is to solder the choke to the connector on the PCB. You need a steady hand, good eyes and an even better soldering iron to achieve this. I personally used a microscope, so that made my life a lot easier, the following pictures were taken through the viewfinder of the microscope:

You can click on each individual image above to see the magnified version.

4. As you can see in the above images, you have to be brave to attempt this soldering job 🙂 After you installed the choke, now you can install the black and the red wires, these will be later soldered directly to where the battery leads are soldered into the Tiny Whoop controller board:

3.7V power cables soldered in

If you accomplished all this, congratulation, you have great soldering skills, now go ahead and help others out as well 🙂 All what is left, to solder the other end of the black and red wires to the battery leads on the Tiny Whoop.

With this installation we bypassed the main voltage regulator on the SPMVA2500. Since the main filtering on a power supply is happening before the voltage entering the voltage regulator, the out line is filtered only barely. For this reason  we need to add the above mentioned choke to filter out all the incoming interferences from the motors.

Amazing power and extended flight time can be achieved if the new 200mA 1S LiPo battery is used in conjunction with the Tiny Whoop. You can order it by clicking on the picture below:

200mA 1S Tiny Whoop Battery

I hope you find this article helpful.

Inductrix FPV


The new FPV Inductrix was released on October 27th. For details please see the end of this article:

FPV BNF InductrixIt seems that the new trend in town is to FPV an ultra micro ducted fun quad, add a 5-10mW transmitter/camera combo to it and fly indoors FPV.  The new Inductrix, almost ducted fan drone is now available from our website in in BNF (Bind and Fly) or RTF (Ready to Fly versions). You can access the online store by clicking on the image below, but before you do that, read further:

Inductrix Ducted Fan QuadWhile they claim this is virtually indestructible, I managed to break one of the ducted fan holding braces in just a few flights. However a well paced drop of CA and some kicker solved the issue, so the frame is strong again now till the next crash.

I originally opened the BNF version, because I have a Spektrum DX6i, and I was naively thinking that there are proper instructions on how to bind this with any previous DX Spektrum products. the documentation however lacks those instructions and I went ahead and used the “universal Fixer” of the 21st century called “google”. A solution presented itself right away by the hand of a fellow RC enthusiast, Marcus Mathos, thank you for your great video:

Now this solved one problem, but I found that the response was still slow – like I would have exponential set up all over the place. So I went digging in my older RC boxed and I found an MLP4DSM transmitter, this is the same – or similar to what the RTF version comes with. So I bound that to the Inductrix and man-o-man, what a difference. By pushing in the right stick you can change the rates from low to high – that is when this leattle beast will excel. If you push in the left stick (By pushing in I mean – straight down toward the remote while it clicks) then you go to acro/rate mode where you can fly like you would fly a racer. In this mode it really picks up speed and flies great.

In order to set this little craft with FPV, you will need to add a micro FPV camera/transmitter combo, SPMVA1100, which can be powered from a 1S battery and it is less than 4gram add-on weight:

10mW TX and CameraYou can order this by clicking on the image above. You will need to use a small piece of double-sided tape to install this camera and you will need to solder the wires to the controller boards battery lead, so when the battery is plugged in your FPV system is online as well.  You can use the button on the camera to change the channel, or match the frequency from your Fat Shark goggles.

Once all set up you can go flying around the living room, race between the legs of your kitchen table and have fun. If you are looking for detailed building instructions, just do a search in google for “Tiny whoop build” and you will find several videos on how to build this.

Amazing power and extended flight time can be achieved if the new 200mA 1S LiPo battery is used in conjunction with the Tiny Whoop. You can order it by clicking on the picture below:

200mA 1S Tiny Whoop Battery


On October 27th Horizon Hobby Released their new FPV Inductrix which comes in a BNF or RTF version. This is a complete FPV Tiny Whoop with built in camera, 5.8Ghz 25mW video transmitter and a 200mAh battery which will allow about 4-5 minutes of flight time:

FPV BNF InductrixThis new FPV Inductrix has upgraded motors to provide excellent performance for the indoor FPV Inductrix pilot. This will be available from out store starting October 28th, and orders will be shipped out starting October 29th. You can purchase it here:

EMAX 1306 Red-Bottoms

Well, it seems that the red-bottom revolution in quad racing continues with the new 1306 series. EMAX introduced these with two different KV settings, 3300 and 4000. We bring you today the 4000KV motors.

EMAX 1306 4000KV Red Bottom

For their tiny size these motors definitely pack in a kick. Emax claims a 370g trust with the propellers they tested them with, which on such tiny size will definitely get your racer moving.

If you wish to purchase them you can do so from here: or by clicking on the image below.

EMAX 1306 4000KV Red Bottom

I found a video on YouTube, a fellow pilot racing with these motors:

I hope you guys will enjoy these little high pitch beasts.



  • – Length: 16mm + 12mm shaft
  • – Diameter: 18mm
  • – Maximum thrust: 340g
  • – Shaft: 5mm
  • – Weight: 12.7g
  • – Rotation: CW or CCW
  • – Thread direction: CCW or CW
  • – High Quality NSK Bearings
  • – Strong N52 Magnets
  • – Factory Balanced Precision CNC Motor Bells


  • – Configuration: 9N12P
  • – KV: 4000
  • – Battery cells supported: 3-4S LiPo

Recommended accessories:

  • – Propeller: 3″ dual blade or 3: tri-blade


Mach 25 FPV Racer

Like many of you, I am a builder. That is one of the main reason people drop by our store very often and as for advice on a very wide range of things. This includes RC models, FPV setups, Drone racing, Home automation, Internet security, different IT and network issues, etc. Over the past tens of years I played around – on a hobby level as well as professionally with several systems, I implemented province wide networks for healthcare, and I designed server farms as well.

I never turn down a challenging build and I enjoy every second of it. I personally run this store based on the principal of building and educating, for me it is more important to pass on the knowledge to our younger generation who came to grow up in a world where everything is “readily” given to them to use – but they have no idea what’s inside and how that thing works. I would hate to live my old days in a world often envisioned in Sci-Fi movies where the old people died out, and the young are left with the technology they have no idea how to repair or fix when it breaks. I know this is pretty far fetched, but open your eyes, we are really heading that way.

So even with the above mentality and principals – because we have to have out principals we live by – here and there I still enjoy to fly a model, drone, helicopter which is RFT or ARF, really well built and put together set up properly out of the box. This is the Mach 25 FPV racer from Horizon Hobby.

Mach 25™ FPV Racer BNF Basic with SAFE® TechnologyThis is not only a stylish FPV racing drone which will make people turn around to look at it, but it is also a very well built and put together racer. The Blade® Mach 25™ multirotor makes getting into 250-class quad-racing easy. Thick carbon-fiber plate construction with robust aluminum support makes this fully assembled racer lightweight and incredibly durable. In the event of a mishap, replacement of the self-tightening propellers is all you’ll likely need. Brilliant LED lighting helps with orientation and identification in the heat of a race. Powerful motors that are canted forward help give you the performance edge while the protected ultra micro FPV camera is soft mounted for the best view. The streamlined body combines improved aerodynamics with an additional level of protection that makes your Mach 25 machine stand out from the pack.

Exclusive SAFE® (Sensor Assisted Flight Envelope) technology built into the Spektrum A3174 flight controller is a revolutionary electronic flight envelope protection system that makes it easy to stay in control. Multiple flight modes with increasing levels of agility are provided and just a transmitter switch away. From maximum assistance with self-leveling and envelope limitations to full-range aerobatic agility, SAFE technology gives you the ability to get up to speed at your own pace.

The installed Spektrum™ ultra micro, 25mW airborne FPV camera system is mounted to a damped carbon-fiber plate and features excellent range for approved AMA line-of-sight FPV flying. All you need to enjoy the view is a Fat Shark compatible headset or 5.8GHz video monitor. This Camera/Transmitter combo is pretty powerful, with it’s 25mW and built in antenna will give you the same results as the Immersion RC 25mW 5.8 Ghz transmitter. The only one thing it lacks though, it is the race bands – which we hope Horizon Hobby will implement on the next edition.

Here is the demo video of this BNF bird:

Now the amazing thing is that Horizon dropped the price of this racer down to around 350USD which makes this very well built drone as affordable as the Chinese “thrown-together” FPV drones one can buy in bulk from any of the aliexpress, banggod or any other mass sales sites. The quality of this is way superior for the same price.

The Vortex 250 Pro

Vortex 250 ProImmersionRC finally released the information about the long awaited Vortex 250 Pro. Please see the highlights below.

The Vortex 285 (the first in the Vortex family) has experienced incredible success, and has changed the Race Quad market. The Vortex 250 Pro is the result of listening to our top pilots, taking the product to a new level, with the same level of integration as it’s big brother, the Vortex.
You can pre-order the Vortex 250 Pro from our website by clicking here:


Building off of the success of the Vortex 285, and listening to the dreams and wishes of our customers, the ImmersionRC team designed the Vortex 250 Pro, a purebred racer which ticks all of the boxes.
We swapped out the ‘F1’ processor for the ‘F3’, added an integrated Black Box recorder, swapped out the 1806 motors for potent 2204/2300kV custom motors, Gen2 20A ESCs, Serial receiver support… the list is long and colorful.
As with the Vortex 285, the 250 is ARF, just add a compatible R/C Rx (CPPM, Spektrum, S-Bus, XBus, EzUHF, etc. etc.), and a battery, and go race, everything else is included, from the SpiroNET Tx antenna, to the props.
NOTE: Compatible receiver and display device required for initial setup and during use, items not included.

Pure-bred Racer

The Vortex 285’s foldable tubular arms are replaced with virtually unbreakable 4mm Carbon Fiber flat arms, with twelve M3 aluminium spacers wrapped in custom plastic. The frame is designed to hit objects which don’t like to move out of the way, and survive to fly again in the next race.  The 2mm Carbon Fiber top-plate is designed to take some serious abuse, backed up by 2mm FR4 skid plates which survive scraping across the occasional parking-lot floor.

Fusion Gen2 Flight Controller

The ImmersionRC Fusion, a highly integrated state-of-the-art flight controller, gets an extensive update for the Vortex 250. The ‘F1’ class processor is updated to an F3, flash memory for BlackBox log storage is integrated, the buzzer is replaced with one MUCH louder, and a port is added for direct serial receiver hookup (5V and 3.3v supply options). As for the Fusion Gen1, the Gen2 is pre-loaded with a custom build of CleanFlight, and is future-proof, supporting future updates. The high performance ‘F3’ processor provides > 2x the performance of it’s predecessor, allowing lower loop times, and better flight performance. PIDs are adjusted on-screen, in easy-to-use menus, driven directly from the R/C Tx.

Integrated 5.8GHz Video Tx with RaceBand

An on-board NexWaveRF 5.8GHz video transmitter, with 40 channel support, ensures compatibility with any 5.8Ghz A/V Rx on the market. New for the Vortex 250, is Dynamic Power Control. Transmitter power is lowered automatically when the quad is disarmed, or ready for a race to start, to reduce interference to other pilots. ImmersionRC’s exclusive RaceBand allows 8 pilots to fly together, while being 100% legal for US resellers to distribute. All channels fall within the legal US Ham band. The on-board OSD allows video transmitter channels to be chosen using the R/C transmitter, no more dip-switches to flip, and no more frequency lists to remember. Full compatibility with all ImmersionRC/FatShark, Boscam, Team Black-Sheep, DJI, and ImmersionRC RaceBand channels.

vx250pro_2Flexible Camera Options

The flexible Vortex camera mount supports both a flight cam, and an HD camera such as a GoPro. This mount is included in the box with the Vortex 250, and doesn’t require the purchase of an add-on product.
The flight cam is protected from impacts, and is suspended from a vibration-dampened carbon-fibre plate. An adjustable bracket allows the camera to be tilted to ensure a good forward view during high-speed racing. As the icing on the cake, a monster 3A switching regulator allows any HD cam (GoPro included) to be powered from the flight pack, allowing unnecessary camera batteries to be left at home.

Pro-Tuner, In The Box

The Vortex 250 continues in the footsteps of it’s Vortex 285 big-brother, and not only ships with a pro-tune that flies like it is on rails, but adds a selection of pro-tunes created by some of the experts in the hobby. Some of the biggest names in FPV Quad Racing have abused countless LiPos tuning the Vortex for peak performance, and have produced some stunning videos in the process.

Lights!, Music!, Action!!!

Ok, there is no music, we’ll leave that to the post-processing, but there are lights, and plenty of action! A set of 8 24-bit RGB LEDs sit on the tail of the Vortex, sandwiched safely between the upper, and lower frame plates.  These LEDs, controlled by a dedicated 32-bit ARM processor (yeah… what were we thinking!), can show something as mundane as the pilot’s favourite color, just about anything else we decide to roll into the user-upgradable firmware. Brake lights?, Shift to white for max. acceleration?, Indicators for polite left/right turns?, or just a pattern to remind you of 80’s Discos. Since Airgonay’s now-famous ‘Star Wars’ video, rear lights on miniquads have become not a ‘nice to have’, but a ‘no fun without ’em’.

‘Gen2’ Custom 32-bit, 20A ESCs, with OneShot125

Custom 20A ESCs (22A Peak), with OneShot125, and regenerative braking, for crisp-responsive flight using CleanFlight. A 32-bit ARM processor runs each ESC, ensuring plenty of processing power to drive even the most fussy brushless motors. The second generation of ImmersionRC’s ‘EzESC’, with race-proven reliability, and the extra punch required to spin the 2204/2300kV motors. These ESCs also support our innovative rotorSENSE, which programs prop direction with the flick of a finger. No more swapping motor wires.

Blackbox Recorder

Blackbox is a high speed recorder for flight controller data, which is stored in an integrated flash memory on the Vortex 250’s Fusion Gen2 board. This extremely powerful tool can be used to tweak your PIDs to perfection with your choice of props, battery, and camera.

vx250pro_1Full Graphic OSD, with EzOSD pedigree

An on-board full-graphic OSD provides in-flight updates of critical parameters, and sports a menu which allows all options to be programmed in the field using the R/C Tx, and a set of goggles, or an LCD screen.
A real-time interface with the flight controller enables artificial horizons, F-18 style displays, and exchange of flight parameters.

Seven! 32-bit ARM processors

There are not many quads out there with that claim to fame… the Vortex 250, like its 285 big-brother, sports no less than seven 32-bit ARM processors, all working together for maximum fun-factor.
A dedicated ARM for the flight controller, another for the full-graphic OSD, even another for the LED board at the back of the quad, and then four high performance ARMs for the custom ESCs.

Custom OSD Layouts

Several OSD layouts are included in the package:
•A classical EzOSD-type layout, with all critical parameters available on-screen.
•A Heads-Up display which would be more at home in a fighter-jet, with artificial horizon and altitude indicator.
•A Race layout, with just the critical parameters, tucked around the edges of the display.
•A Gaming layout… we’ll explain that one just before launch
All OSD layouts include screen-center alerts for critical warnings, such as battery voltage, EzUHF Link Critical, etc.


  • Retail Price ($USD): $479.00 (foam packaging), $499 (zipper case)
  • Initial Release Date: November 2015
  • Weight: ~415g without battery, or HD camera
  • Power Requirements: 3s-4s LiPo (typical)
  • ESCs: Full Custom, 20A cont. 22A peak, rotorSENSE, OneShot125
  • Motors: Custom V-Spec 2204-2300kV, with 3mm axles, 5mm shafts
  • Props: OEM Gemfan 5045 GF Blunt-Nose
  • Flight Camera: FatShark 700TVL v2 CMOS (included)
  • HD Camera: GoPro Hero, Hero 3/4
  • Receiver Compatibility: CPPM, S-Bus, Spektrum™, XBus, SumH, SumD (no external adapters required) (Auto-Sense!)
  • Flight Time: Highly dependent upon battery, and flying style