blade cross-section
профіль лопаті
профіль лопаті
echoing cross-section; echoing cross section
blade flat; saber flat; sword flat, flat of the blade / sword
blade de-icers / blade heating elements
blade heating elements / blade de-icers
blade tip light / main-rotor blade tip light
radar cross-section (RCS); radar signature; radar crossover
low-RCS target / low-radar-cross-section target
target scattering crossover / target scattering cross-section / electronic target profile