Swift 4 - Notes du concepteur

The Swift 4 is based entirely on the Rush 4 design, and as such shares designer notes with the Rush 4.

New sizes : MS and ML replace the M. This gives a total of five sizes and reduces the gap between sizes.

A new arc. The same arc used in the Delta2 which was developed from the competition research project.
The AR has been marginally increased to 5.55, remaining very close to the Rush 3. We believe this gives the right balance between performance and simplicity for this level of wing.
The Swift 4 features shark nose technology. The forgiving nature of the profile at low and high angles of attack sharpens the handling and gives a high level of spin resistance. This allows the pilot to make deep brake inputs when necessary to adjust the turn and bank angle as required.
At low angles of attack the shark nose profile gives more solidity or collapse resistance than a ‘classic’ profile as used in the Swift 2 or Rush 3. This improves the True Performance -making it more useable in turbulent conditions.
57 cells. This allows for a cleaner sail, therefore it is more efficient but it also helps us to achieve the desired feeling - a combination of precision and comfort.
Double Transversal Shaping gives an even cleaner LE, and Miniribs reduce drag at the TE.
3 Line design, with a reduction of 25% surface drag.