Every Spidertech™ sail is a unique product, thought and interpreted by the sailmaker-designer in an absolutely personal way.
These are the instruments which follow the design since the first draft to the final accomplishment, trough analysis which can be more and more refined and complicated, to fulfil even the request of the most demanding customers.

The main tool to design the Spidertech™ sails structure is the Spider Fibre module, a downright CAD CAM system where the sailmaker has got the freedom to place every single fibre in the desired position on the 3D mould of the sail, then he can decide the material to be used and the number of fibres, all that to give the right density to the laminated sail.
The parametric nature of the geometrical engine let the user scaling similar designs in a direct way, making easy the build up and the maintenance of an efficient structural database.
An integrated function of denier count allow to visualize, in terms of DPI, the fibre quantity inside the several groups which are composing the structural lay-out, representing a first powerful aid to give the right weight to the sail.
All the model's design data are sent to FMG with a secure server procedure, and used by our staff of technician to directly drive the CNC machinery, allowing us to faithfully rebuild event the most complex designs.
As a final result, we deliver flat panels which grant a perfect coincidence of the yarns on the overlap and bonding zones, eliminating the risk of high stress due to the bonding between different or discontinuous materials.

The first analysis tool at designer's disposal is Spider Sim 1, an aero-elastic solver that , after the design of an aerodynamic shape and the reinforcement yarn distribution, allow to estimate the stress and strain entity.
The calculation of the aerodynamic loads has been obtained by a last generation numerical code, which couples the speed of panels methods with an extremely refined treatment of the turbulent transition, with the possibility to detect the birth and the evolution of separation bubbles.
Dealing with a full 3D code, it's possible to visualize the path of fluid particles , understanding in this way the interaction between the wake and the transverse movements with respect to the profile.
The structural solver then applies the aerodynamic loads to the material and simulates the strain, starting an iterative process which ends when the equilibrium between the fluid motion field and the flying shape has been reached.

Finally, the most advanced analysis tool is Spider Sim 2, where the fluid-dynamic analysis is oriented to the search and optimization of the sails flying shapes.
At this stage the designer can verify the effect of the changes to the sail plan in terms of generated forces and resulting moments, working for instance on the profiles depth, on the leading and trailing edge angles, comparing the numerical results with the feeling recorded during several years of experience in the loft and on the regatta fields.
A particular attention can be addressed to the study of different combinations between jib and mainsail, or to the running with conditions out of the ideal trimming and wind range.
As a further support, had been thought a data acquisition module that, with the pictures analysis, allows to verify the correspondence between the flying shapes and the virtual shapes, drafted during the design and analysis process.
The final result is a Spidertech™ Sail, optimised in terms of weight, structural resistance and aerodynamic efficiency, a true unique example which bears inside the personal style, the experience, the knowledge and the brand of the designer.