An Introduction to FPV

An Introduction to FPV

We all know humans can’t fly. Our bones are far too dense and flapping our arms does not produce adequate lift to overcome the pull of gravity, but luckily we can use technology to give us the experience of flying. I’m not talking about flying in airplanes...
Multirotors and the Law (Specifically the FAA)

Multirotors and the Law (Specifically the FAA)

The past couple of years have seen a dramatic increase in the popularity of multirotor aircraft pilotingĀ as a hobby, as well as for potential commercial applications. The rapidly decreasing cost of multirotor flight systems, like the KK2.1 flight controller, coupled...
Common Flight Controller Features

Common Flight Controller Features

Flight controllers range in price from $30 to $300 or more and each of the many, many different flight controllers on the market has its own set of features. While many flight controllers, especially those on the higher end of the price range, have proprietary...
Quadcopter Maths

Quadcopter Maths

As discussed in the previous guide, a multirotor flight controller is able to ascertain the position and orientation of the craft based on data from its onboard sensors. In order to make the multirotor change its position and/or orientation, the flight controller...
Maximizing Multirotor Battery Life

Maximizing Multirotor Battery Life

Battery life is perhaps the greatest limitation for multirotors. Even with a very large, heavy, and expensive high-capacity battery, most multirotor aircraft will struggle to get ten minutes of flight time. Now, even five minutes of flight time seems much longer when...
Understanding Transmitter Modes

Understanding Transmitter Modes

Mode 1 or Mode 2, that is the question that many first-time multirotor pilots face when selecting radio transmitters and it is the first question we will address in this tutorial before moving on to discussing radio transmitter channels. Transmitter Modes Radio...