FIELD: navigation under ice conditions. SUBSTANCE: submarine ship 2 runs under ice 1 at safe depth and resonance speed exciting flexural gravitational waves 3; during motion of ship 2, her wave resistance is increased by supply of compressed air 6 under gastight film 4 mounted preliminarily on upper portion of hull of ship 2. Steady layer of liquid 7 formed under ice has lesser density as compared with under-ice water 8, thus increasing flexural gravitational waves 9. EFFECT: enhanced efficiency of ice breaking. 1 dwg
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| METHOD OF BREAKING ICE COVER | 2001 |
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