Airborne FPV is a type of remote-control (RC) flying that has grown in popularity in recent years. It involves mounting a small video camera and an analogue video transmitter to an RC aircraft and flying by means of a live video down-link, commonly displayed on video goggles or a portable monitor. FPV became increasingly common throughout the late 2000s and early 2010s. It is currently one of the fastest growing activities involving RC aircraft, and has given rise to a small but growing industry providing products specifically designed for FPV use. FPV aircraft are frequently used for aerial photography and videography and many videos of FPV flights can be found on popular video sites such as YouTube and Vimeo. For this purpose, many FPV pilots utilize a second, lightweight high-definition on-board camcorder such as a GoPro camera in addition to their standard definition video link(s).