A good compromise static front suspension geometry for a stiffened Spitfire at rest on level ground is when the lower A-arms are parallel to the ground. This is a reasonable compromise that lowers both the c.g. and the roll center without increasing the roll moment too much. This geometry occurs when the total distance between the center of the bolt attaching the damper to the lower A-arm and the upper spring seat is 10.25 inches. Because the distance from the lower A-arm to damper (shock absorber) connection and the bottom spring seat is nominally 3.25 inches, this also corresponds to a compressed length of the front coil springs installed of 7 inches.