Section 5: F16 Grandfathered, Dispensated Boats and Foundation Boats
5.1 Dispensated boats and Formula 16 foundation boats
5.1.1 The Formula 16 authority may give dispensations to boats that do not fully comply with the Formula 16 rules. These dispensations are limited in duration and are reviewed yearly. Boats that are dispensated do not become part of the Formula 16 class but of the Open Formula 16 class instead.
5.1.2 The Foundation boats Taipan 4.9 (with F16 spi) and Stealth (R) have the special status of "Formula 16 foundation boats"; meaning that, despite the fact that they are dispensated for their non compliance, they have become part of the (closed) Formula 16 class. Their status is permanent; althought it is lost when the boat in question is no longer compliant with their confirmed (class) setup as fixed on the date 1 januari 2002.
6.1 Grandfathering of boats into the open Open Formula 16 class
6.1 The head of a local Formula 16 class organisation may give dispensation (called grandfathering) to a particular design or class and allow them to become part of the Open Formula 16 class under the following conditions.
6.1.1 The design may not have hulls longer than 5,30 mtr.(17ft 4 inch.)
6.1.2 The design must have a rated jib sail area which is less than 4,25 sq.mtr. and more than 2,75 sq. mtr. (this rule does not apply to single handed setups)
6.1.3 Both the SCHRS (ISAF) and Texel rating of the design must be equal to or "slower" than the rating assigned to the Formula 16 class.
6.1.4 When grandfathered, the designs are allowed to race against fully compliant Formula 16 designs in declared "Open Formula 16" races.
With the new main sail the Stealth R single handed still has a schrs higher (0.983) than the F16, so the head of the local F16 association should have no reason to exclude the boats.