This latest generation of bottom doors is the result of more than 50 years’ research and based on the experience of previous generations. This new design of the PV3 meets all needs:

• A V profile allows easy spinning
• A rectangular shape ensures good contact on the bottom
• 3 grouped louver’s’ on the first third at the front of the door greatly increase the lift, and produce a nozzle effect, considerably reducing drag.

A special low version, the PV3L, allows the centre of gravity to be lowered a little. This one is more suited to shallow depths and has better contact with the bottom. (It optimises the fish drives!)

The results are clear:

• Constant distance between the doors
• High stability and capacity for a very quick recovery
• Increased lift allows reduced surface area, speed and angle of attack
• Reduced fuel consumption.