| 摘要 |
aircraft manufacture; helicopter manufacture. SUBSTANCE: combat helicopter includes fuselage with opening, swivel platform, turret with suspended rocket and gun armament, retraction and extension mechanism made in form of lever and drive. One end of lever is connected with swivel platform by means of articulated rod. Other end of lever is rigidly secured on shaft. Shaft is mounted on bracket in fuselage opening. Drive of retraction and extension mechanism is made in form of circular rotation drive and is connected with shaft. EFFECT: possibility of operation both in extended and retracted positions; enhanced reliability. 3 dwg
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