There are three sail configurations for all TOPCAT K-models: CLASSIC, STREAMCUT and REGATTA.
The CLASSIC sails made of Dacron sailcloth provide sufficient sail area for the beginner or for sailing school purposes. Dacron is a sailcloth with high UV-resistance and a tendency not to crease.
In addition to the sail battens, the clew has 5 adjustment options for trimming the sail.
The STREAMCUT configuration - either Dacron or Pentex - has a wide-flared top and, depending on the model, up to 2.5 m² more sail area than a CLASSIC sail.
In the REGATTA configuration, the streamcut from Pentex is preferred. Pentex sails have low elasticity due to their material properties and, therefore, are more stable than Dacron sailcloth. All Pentex sails and gennakers from TOPCAT are made in Germany.
Depending on the course and the force of the wind, streamcut models are trimmed by means of the TOPCAT traveller at the foot of the sail, the sail battens, and the cunningham.
Within the individual TOPCAT types, retrofitting can be done at any time.