New WASZP Rudder – Design

While many of these upgrades were beneficial, the rudder consistently stood out. The transformation it brought was remarkable, leading us to focus on upgrading the current WASZP rather than creating a completely new boat. 

We experimented with Mach2 foils from various eras, as well as foils from other Moths and foiling boats. Initially, we considered using carbon foils, but we persevered in finding alloy solutions that could be retracted like the current foils while maintaining efficiency. Eventually, we developed a solution that we are now fully committed to. 

Design features:

This solution is the best-case scenario we hoped for:

• It fits seamlessly into the current rudder box.
• It is entirely made of aluminium and plastic, as before.
• The vertical is stiff but has a very small section below the waterline.
• It retracts fully like the current rudder.
• Most importantly, it performs as well as our best carbon prototype:
  • The ventilation problem is resolved or easily managed.
  • The boat can be sailed more aggressively with the nose down without losing traction.
  • The boat is significantly faster, with downwind VMG in light winds dramatically increased, possibly doubled.