A large amount of wind tunnel testing was carried out including: independent front and
rear wing testing, evaluation of Reynolds number effects on the half-scale model, on-model
front and rear wing testing at various angles with a Gurney flap of various sizes, pitch and
yaw tests, and estimation of the centre of pressure. As an example, the effect of the rear wing
height and front wing accessories on the location of the centre of pressure are presented
herewith in Fig. (3). The aerodynamic appendages enable the centre of pressure to be moved
substantially, and give the designer considerable freedom to optimise the design