Papers devoted to stability, control, aero-elasticity and operations were included in Vol. 91, Iss. 5, and the rest of the accepted papers (25 of 52) devoted to aerodynamics, aero-acoustics, thermodynamics, flight dynamics and control, vibrations, operations, materials, structures, health monitoring, surface technology, measurements, UAV/UAS, engines, power plants to space technology and astronautics will be included in regular issues and published in years 2019 and 2020.