SU654220A1 - Trawl spacer board - Google Patents
Trawl spacer boardInfo
- Publication number
- SU654220A1 SU654220A1 SU762436724A SU2436724A SU654220A1 SU 654220 A1 SU654220 A1 SU 654220A1 SU 762436724 A SU762436724 A SU 762436724A SU 2436724 A SU2436724 A SU 2436724A SU 654220 A1 SU654220 A1 SU 654220A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- trawl
- shield
- board
- adjacent parts
- spacer board
- Prior art date
Links
Description
Распорна тралова доска работает следующим образом.The trawl board works as follows.
В начальный момент спуска трала (на чертеже не показан), при обтекании доски встречным потоком воды образуетс распорна сила и сила буксировочного сопротивлени 2Rx. В этот период угол атаки частей 1 и 3 составл ет 13-16°, по вл етс распорна сила i частей 1 и 3, котора недостаточна дл нормального спуска трала . По вл етс также дополнительна распорна сила средней части 2, угол атаки которой составл ет 18-22°.At the initial moment of the descent of the trawl (not shown in the drawing), as the counter-flow of water flows around the board, a spreading force and a towing resistance of 2Rx are formed. During this period, the angle of attack of parts 1 and 3 is 13-16 °, the spreading force i of parts 1 and 3 appears, which is insufficient for normal descent of the trawl. An additional spreading force of the middle part 2 also appears, the angle of attack of which is 18-22 °.
В режиме тралени части 1 и 3 будут работать на оптимальных углах атаки и иметь лучшие гидродинамические коэффициенты .In trawling mode, parts 1 and 3 will operate at optimal angles of attack and have the best hydrodynamic coefficients.
Изобретение позвол ет повысить эффективность лова рыбы за счет упрощенной конструкции доски, обеспечивающей увеличение распорной силы в начальный момент спуска трала и ускорение спуска трала, а также увеличение распорной силы и снижение сопротивлени доски в режиме тралени за счет эксплуатации доски на оптимальных углах атаки 18-22°.The invention allows to increase the efficiency of fishing due to the simplified design of the board, providing an increase in the thrust force at the initial moment of descent of the trawl and acceleration of the descent of the trawl, as well as an increase in the thrust force and decrease in the resistance of the board in trawling mode by operating the board at optimum angles of attack 18-22 °
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU762436724A SU654220A1 (en) | 1976-12-30 | 1976-12-30 | Trawl spacer board |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU762436724A SU654220A1 (en) | 1976-12-30 | 1976-12-30 | Trawl spacer board |
Publications (1)
Publication Number | Publication Date |
---|---|
SU654220A1 true SU654220A1 (en) | 1979-03-30 |
Family
ID=20689313
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU762436724A SU654220A1 (en) | 1976-12-30 | 1976-12-30 | Trawl spacer board |
Country Status (1)
Country | Link |
---|---|
SU (1) | SU654220A1 (en) |
-
1976
- 1976-12-30 SU SU762436724A patent/SU654220A1/en active
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