The development of instruments for remote detection of clear-air turbulence (CAT) for early warning of aircraft crew about the danger is an urgent problem today. In this work, we describe the design and technical features of BSE-6 turbulent lidar mounted onboard an aircraft for experimental testing of CAT remote sensing technique. The quality of assembly and adjustment was verified in comparison between theoretical calculations and real echo signals. The system was tested for thermomechanical stability. The improvement of the turbulent lidar is to ensure early detection of CAT from an aircraft and remote control of the turbulence intensity in the atmospheric boundary layer from the ground, for example, along glide paths at airports.