| 摘要 |
FIELD: fire fighting. ^ SUBSTANCE: to add to efficiency of fire fighting, one or several helicopters are used. Said helicopters are communicated by flexible fire agent feed hoses. Note that, to avoid winding of said hoses on helicopter rotor and blades, tube with holes to feed said hose is secured onto any fixed part of helicopter. Note also that said tube has length exceeding that of helicopter proper and that of blades, while rotator with blades is enclosed in reticulated to be secured on helicopter fixed part. If required, all helicopter can be enclosed in said reticulated structure. ^ EFFECT: higher efficiency of fire fighting. ^ 2 dwg |
