FIELD: ice-breaking jobs. SUBSTANCE: hovercraft 2 runs on ice cover 1 exciting resonance flexural gravitational waves 3, thus forming aerodynamic lift force directed downward by turning horizontal plane 5 mounted preliminarily on upper deck 4 through negative angle of attack (position 6) towards incoming air flow. Angle of attack is changed regularly at frequency of said waves. EFFECT: increased thickness of broken ice. 1 dwg
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|---|---|---|---|
| METHOD OF BREAKING ICE COVER | 2000 |
|
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