Generating extreme lift

The Tornado trawl door is different and innovative. This pelagic trawl door’s design incorporates five foils and the revolutionary patented Flow Booster. Developed to increase water flow through the foils, the Flow Booster has proven to generate extremely high lift, demonstrating some of the most impressive figures for any trawl door on the market. It’s a fact that Vónin’s customers have been able to reduce their trawl door size by an average of 25% when switching to Tornado trawl doors, providing a significantly lower drag.

FANTASTIC STABILITY
PATENTED FLOW BOOSTER
ASPECT RATIO 3,0 (STANDARD)
LOW DRAG

Vónin’s customers have been able to reduce their trawl door size by an average of 25% when switching to Tornado trawl doors.

“Very happy with the Vónin Tornado. Not only am I getting much better trawl openings and improved towing efficiency. I also can turn more aggressive on fast moving fish marks while maintaining the full opening of the net.”

Allan Simpson, Christina S

Flexible, efficient and stable pelagic trawl doors

Flexibility is also one of the Tornado design’s key points. The angle of attack (AoA) can range from as low as 21 degrees, all the way up to 48 degrees and therefore the same set of doors can be used for a variety of trawl sizes and across a range of fisheries.

Tornado pelagic trawl doors work well up in the surface as well as performing close to the sea bed. Also on shallow waters, they have proven to be very efficient and stable. These doors have also been shown to work across the range of towing speeds, from 1.5 knots and up to 5 knots, and have been used successfully with both parallel and V-rig configurations, depending on the skipper’s preference.

These trawl doors are exceptionally stable. Even when making tight turns, the Tornado doors maintain their spread and keep the trawl open.

Fast and easy

A feature which the skippers also have expressed great satisfaction over is how easy and fast the Tornado doors are to shoot. As soon as the pelagic trawl doors hit the water the Flow Booster kicks in and the doors start spreading, and submerge immediately as the wire is shot away.

Strength

We see the critical importance of the strength of the product, and for this reason the Tornado doors are constructed using high-quality steel, with fully welded seams on all joints and all welding procedures are certified.

SIZES AND WEIGHTS

SIZE	WEIGHT
3,0 m2	1050
4,0 m2	1450
5,0 m2	1850
6,0 m2	2200
7,0 m2	2600
8,0 m2	3000
9,0 m2	3400
10,0 m2	3800
11,0 m2	4200
12,0 m2	4600
13,0 m2	5000

Read more

“I am very pleased with the performance of our Vónin trawl doors. These trawl doors are very powerful compered to other doors, easy to work with, simply outstanding doors“

Bjarni Már Hafsteinsson, Guðrún Þorkelsdóttir

---

This 3D adjustment manual demonstrates how different rigging of the Vónin Tornado trawl doors effects their behaviour.

Other relevant products

Vónin Storm

A strong bottom trawl door with outstanding stability and excellent spread. The trawl door stands up quickly should it fall over.

Vónin Gannet

A effective and versatile pelagic trawl with a robust construction for both intensive and dispersed fishery.

Vónin Falcon

Pelagic trawl with a compact belly which is easy to manoeuvre for chasing fast moving marks and get the gear in the right spot.

Contact

Send e-mail to:
{{selectedEmployee.title}}

• {{error}}

Your message has been sent.

Name

Company

Email

Phone

Message

Send

{{ employee.title }}

{{ getLocations(employee) }}

{{ employee.job_title }}

Phone: {{ employee.phone }}

Send e-mail