| 摘要 |
FIELD: mechanics. ^ SUBSTANCE: invention can be used for testing various flight vehicles, mockups of rotors and tail rotors, parachute systems and for parachuter training under conditions corresponding to free fall in atmosphere. The propose tunnel comprises an open vertical operating part, safety net, backward channel accommodating the main blower, channels to blow in a cooling atmospheric air, honeycomb, nozzle and safety screen. Note that the main blower is located horizontally at the ground level, between the third and fourth tunnel turn elbows. ^ EFFECT: simpler main blower mounting and servicing, longer operation of tunnel at maximum power consumed by blower. ^ 1 dwg |
