FIELD: manufacture of trawls. SUBSTANCE: proposed trawl rigging system includes four otter boards connected with warp and respective ends of trawl wings, float and depressor. Otter boards located at level of respective line of wing are connected with it and are also connected with line of wing located at other level or topping lift. Sizes and bursting forces of all trawl otter boards are similar; trawl otter boards fastened with cork lines are adjusted for floating and trawl otter boards fastened with bottom lines are adjusted for immersion. Pendants of otter boards are fastened with cables which are connected in their turn with respective warps. Besides that, otter boards possess zero buoyancy. EFFECT: facilitated procedure of operation; extended functional capabilities of trawl. 2 cl, 3 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| OTTER BOARD | 2001 |
|
RU2203543C2 |
| TRAWL | 2001 |
|
RU2210888C2 |
| FISHING GEAR | 2001 |
|
RU2213448C2 |
| TRAWL | 2001 |
|
RU2210889C2 |
| FISHING GEAR | 2001 |
|
RU2213447C2 |
| FISHING GEAR | 2001 |
|
RU2210890C2 |
| FISHING GEAR | 2001 |
|
RU2218761C2 |
| TRAWL | 2001 |
|
RU2205538C1 |
| TRAWL | 2001 |
|
RU2206991C1 |
| TRAWL SYSTEM FOR TRAWLING HYDROBIONTS | 0 |
|
SU1671212A1 |
