main trunnion

основна цапфа; головна цапфа; цапфа великого / найбільшого діаметра (цапфового підвісу)

main trunnion bearing

main trunnion plate

main defense area (line) / main defensive position

main tank/ main fuel tank

main gear box / main rotor transmission

main rotor transmission / main gear box

main-rotor head / main-rotor hub

main-rotor hub / main-rotor head

antifriction trunnion

antifriction trunnion bearing

cant of trunnion axis

cradle equilibrator trunnion

cradle trunnion

cradle-trunnion bearings

cradle-trunnion stud

elevated trunnion concept

gun trunnion tilt

inclination of trunnion axis

rear trunnion mounting

semiflexible trunnion-post mounting

spring guide trunnion

tilt of trunnion axis

top-carriage trunnion

top-carriage trunnion bearing

traveling trunnion bed