• How to setup INAV on a flying wing – video tutorial – GPS, Baro and Compass

    Do you need a barometer on a flying wing with INAV? Do you need a compass/magnetometer on a flying wing? How to set up a GPS unit and which protocol should you use? Do advanced tuning and set up a return to home, banking angles, landing procedures etc. Configure the most important GPS related flight…

  • INAV and Failsafe – especially for FrSky owners (but not only)

    You should not trust a guy on YouTube that says that he knows it all OpenTX “no signal” is not the best failsafe setting when FrSky S.BUS devices are used and why Than “Hold” failsafe setting might actually be a better option when S.BUS is used How to setup Failsafe in INAV to have the…

  • How to make 868MHz or 915MHz dipole antennas for FrSky R9 or TBS Crossfire receivers

    How to make 868MHz or 915MHz dipole antennas for FrSky R9 or TBS Crossfire receivers

    The correct length of 868/915MHz antennas used by FrSky R9 and TBS Crossfire is: From time to time FrSky has a big problem with cutting their antennas to a correct length. Good thing, you can make your own TBS Crossfire RX antennas for cheap! In this tutorial, you’ll learn how to build your very own…

  • How much does a propeller weight? Mass vs. moment of inertia

    How often, when you watched or read a brushless motor review you’ve heard a sentence like “this motor will not have any problem spinning a heavy propeller” or “this motor is designed for light propellers”. Or “this is a very light propeller”. But what does that really mean? Thanks to our good friend Sir Isaac…

  • 3D printed FPV tricopter drone

    Who could have imagined that tricopters can be so much fun? For sure they are interesting devices that lost a lot of "market" when quadcopters gained extra torque and plenty of reaction moment to do fast yaw turns. Almost no one flies them now. Too bad… And good luck if you want to buy a…

  • Matek F722-SE – brand new flight controller that brings STM32F7 closer to the needs of many

    At the beginning of 2018 I’ve stated that Matek F722-STD is the first F7 flight controller that makes sense. Today, I have in front of me I have the first F7 flight controller that has all you need (and more) when 4-in-1 ESC is not what you are looking for. It is Matek F722-SE! STM32F722…

  • Mamba F405 and F40 40A 3-6S 4-in-1 ESC combo hands on

    I have to honestly admit, up to the beginning of 2018 summer I was rather against 4-in-1 ESCs and flight controllers combos. The reason was quite simple: 4-in-1 were a rather new thing, had a tendency to burn without a reason and were quite expensive. Pretty much a normal state of a new technology. In…

  • Betaflight 4.0 – improved dynamic filtering on 7 inch quad

    The next major release of Betaflight will be 4.0 with new and improved Dynamic Filtering. For now, today I only did a quick test of Betaflight 4.0 running on my TBS Source One 7-inch FPV drone. No tuning, no playing with settings. I only flashed, set modes and radio and that’s all. I pretty much…

  • Smooth 7-inch FPV drone – motor soft mounts, part 1

    I have a theory that 7-inch FPV quadcopters fly “below expectations” due to frame resonance, I did not expect, so many pilots agree with it. We had nice talks in comments, I’ve learned a lot about stiffness and moment of inertia (that you Pierre-Louis). Many of you shared some of their tricks and ideas on…