AERIAL IRRIGATION SYSTEM Russian patent published in 1995 - IPC

FIELD: agricultural irrigation engineering; keeping aerostatic aircraft above irrigated field. SUBSTANCE: system comprises aerostatic aircraft 1, extensible anchor 2, anchoring cable, vertical cable, pulling cable 7, water tank 10 and spraying devices, and water ON and OFF cable whose functions are performed by the vertical cable. Aircraft 1 connected concurrently to the center of anchoring 3 and the end of pulling 7 cables reduces or increases the height of the center of anchoring cable 3 by adjusting its angle of inclination and, consequently, the rate of irrigation. As the cable ends approach pulling block 7, the water supply ceases and the vertical cable is reconnected to the beginning of the next anchoring cable. EFFECT: higher efficiency. 2 cl, 4 dwg