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![](https://static.wixstatic.com/media/60e633_cdb8a1e1eeec412c86aae2d131e38951~mv2.jpg/v1/fill/w_1920,h_720,al_c,q_85,usm_0.66_1.00_0.01,blur_2,enc_auto/60e633_cdb8a1e1eeec412c86aae2d131e38951~mv2.jpg)
HL-33
The HL-33 type can be categorised as a higher aspect ratio bottom trawl door or as a lower aspect ratio semi-pelagic trawl door. As this is higher than traditional bottom trawl doors makes the HL-33 more efficient in terms of lift (spreading power) and at the same time very stabile when towing and turning. As the aspect ratio is lower than normal semi-pelagic trawl doors, makes it a very good fit to many vessels. The HL-33 aspect ratio is 1:1,33
![HL-33 BOTTOM DOOR / SEMI-PELAGIC](https://static.wixstatic.com/media/60e633_309fdc2e40974619ab4d163cb5194a29~mv2.jpg/v1/fit/w_186,h_186,q_75/60e633_309fdc2e40974619ab4d163cb5194a29~mv2.jpg)
![HL-33 BOTTOM DOOR / SEMI-PELAGIC](https://static.wixstatic.com/media/60e633_fbcdce9123cc494ba90e4daac2e0f354~mv2.jpg/v1/fit/w_186,h_186,q_75/60e633_fbcdce9123cc494ba90e4daac2e0f354~mv2.jpg)
![HL-33 BOTTOM DOOR / SEMI-PELAGIC](https://static.wixstatic.com/media/60e633_c8972849c497487980d828538bc84986~mv2.jpg/v1/fit/w_186,h_186,q_75/60e633_c8972849c497487980d828538bc84986~mv2.jpg)
![HL-33 BOTTOM DOOR / SEMI-PELAGIC](https://static.wixstatic.com/media/60e633_b63ea0250035478cbf1a5963a40fec31~mv2.jpg/v1/fit/w_186,h_186,q_75/60e633_b63ea0250035478cbf1a5963a40fec31~mv2.jpg)
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