All Betaflight 4.5.0 Kaack Compatible Flight Controllers

Please note: Most flight controllers can flash this firmware, however, some may not. Especially if a flight controller is released that uses a new target that hasn't existed since 4.5.0 was first released. It is currently unknown if NewBeeDrone flight controllers can flash this firmware.

Note on SPI Receivers: While SPI receivers are legal in the spec, they do increase CPU load, which is in limited supply on an F411 processor running the RPM Limiter. You may consider running an external receiver on your flight controllers that use an integrated SPI receiver.

• Any 1s capable 8 bit ESCs rated between 5a-12a

Please note: 32 bit ESCs are not legal. This would include ESCs listed as being "BLHeli32" or "AM32" ESCs. Most ESCs you'll find on micro drones will be 8 bit ESCs, which are typically listed as "BLHeli-S" or "BlueJay" capable.

• BetaFPV Meteor75

• BetaFPV Meteor75 Air

• NewBeeDrone Cockroach 75

• Happymodel Mobula 7 V2

• Happymodel Mobula 7 V3

• Happymodel Mobula 7 V4

• Fractal Engineering Fractal 75

Please Note: "Pro" frames, which are those compatible with 45mm propellers, are NOT legal. The main examples of this would be the BetaFPV "Meteor75 Pro" and Fractal Engineering "Fractal 75 Pro Max". The similar naming convention of these frames can sometimes confuse pilots into thinking they are legal. They are not.

Also note: frame modifications done for weight loss or performance gain are not legal. This includes clipping or shaving your frame. You may, however, add 3D prints or glue to your builds. You may modify, expand, or clip your battery tray if it is necessary to fit your batteries. You may do a small amount of clipping if it is necessary to access a port on your flight controller or VTX.

OFFICIAL MOTORS (RECOMMENDED)

Aerial Outlaws UWL Lite 802 19,000kv

UWL Limited Edition 802 19,000kv

OTHER APPROVED MOTORS

Happymodel EX0802 19,000kv - Unibell

Happymodel EX0802 19,000kv - Split Bell

Happymodel SE0802 19,000kv

A note on approving more motors:
Any motor that isn't directly checked and distributed by UDL is outside of the control of UDL to regulate manufacturing and performance. This means that motors we do not specifically check and distribute could be changed, intentionally or unintentionally, after being approved for use in the Igniter class. This would cause issues, giving some pilots an advantage and would cause those motors to banned from spec if this was found out. Fortunately, we have had no issues working with Chinese manufacturers, such as Happymodel, and they have little motivation to "cheat" the spec in this way. This is why Happymodel branded motors are legal, despite not having every motor they produce checked and distributed by UDL.

American companies have the ability to whitelabel (put their logo on) motors manufactured in China. This is a very common practice and it gives the American company control over specific aspects of manufacturing that could be detrimental to the integrity of the spec. Unfortunately, we have had issues with American companies refusing to follow UDL guidelines, and this has happened specifically in the context of whitelabel motors. We have found that UDL is a more prominent part of the American FPV economy than it is the Chinese FPV economy. Even American companies who are seemingly honest retailers can buckle under the temptation to cheat the spec through manufacturing (or other meants) to make more money.

For this reason, we no longer approve American branded motors for the Igniter spec class. Our stance is that American companies who want to profit off of our spec can sell spec legal motors that are under the manufacturing control of a Chinese company. It's unnecessary and unhelpful to the spec for them to sell the exact same product but with their logo on it; it only causes problems with regulation. And companies who meet our retail requirements also have the opportunity to resell official UDL motors that are specifically under our manufacturing control.

It is always our goal to increase the availability of spec legal motors everywhere.

• Gemfan 1610 - 1mm Shaft

• Gemfan 1610 - 1.5mm Shaft

Please note: The 1mm version of these propellers may be drilled out to fit a 1.5mm shaft. This is the only modification that may be done to propellers

• NTSC/PAL Analog Cameras

• HDZero 60FPS Cameras

Please Note: If you want to use HDZero 90FPS Cameras, these are currently legal, however, your Igniter must weigh at least 41g. These cameras may not always be legal.

Please Note: If you want to use Walksnail, make sure that your local race director allows it. These video systems may not be legal at larger races, including official championships, due to the inability to stream it and other special processes required to allow them to integrate into our race environments. If you are using Walksnail, please set it to Race mode as this causes the least interference for other pilots and it allows it to be used with lap timing systems. There is no FPS limit on Walksnail currently, so you may use it in 100FPS mode.

• NTSC/PAL Analog VTX's capable of 25mw

• HDZero VTX's capable of 1s

Please note: VTX's must have a 25mw setting AND be able to accurately and consistently output at 25mw when measured. If you do not have the ability to measure your own output power, it is recommended that you do not use any flight controllers with a built in VTX as these tend to be less reliable. It is better to use a reputable external VTX or one that is OpenVTX compatible.

Please Note: If you want to use Walksnail, make sure that your local race director allows it. These video systems may not be legal at larger races, including official championships, due to the inability to stream it and other special processes required to allow them to integrate into our race environments. If you are using Walksnail, please set it to Race mode as this causes the least interference for other pilots and it allows it to be used with lap timing systems. There is no FPS limit on Walksnail currently, so you may use it in 100FPS mode.

• 2.4ghz receivers (including ELRS, FRSKY D8, DSMX, Tracer, and Ghost)

• 915mhz/868mhs (including ELRS and Crossfire)

Please Note: If using a 915mhz/868mhz receiver, make sure that it is set to the correct setting for your region's federal regulations. 2.4ghz ELRS is generally recommended.

• Any 1s 450mah Battery

• Individual LEDs that are 603 or larger in size

• LED Strips

• COB Strips

• Probably any other type of LED with reasonable brightness

Please note: You must use LEDs and the actual configurations you can use can be quite strict. Check the LED specific rules and reach out if you have questions about the legality of your LEDs or the legality of their configuration.

• Betaflight 4.4.2 Kaack "igniter" Commit (Flight Controller)

• BlueJay 0.17 and newer (ESCS)

• Any VTX/RX firmware, though ELRS and OpenVTX are generally recommended

Please note: You may not use ANY firmware for your ESCs or Flight Controller that isn't listed here. Quicksilver and JESC, for instance, may not be used. ESCs and Flight Controllers that don't support these firmwares may not be used.

Learn how to set up your firmware here.

• X4 Tractor Style

Note: This is the standard way to build a drone. Building in a + style instead of x style is not allowed. Using more (or less) than 4 motors is not allowed. Building in a pusher (opposed to tractor) configuration is not allowed.