This popular dry compass offers advantages over traditional fluid compasses. Because the sensing magnet is fixed in a horizontal plane & dampened naturally by design, the compass is inherently stable; overswing is minimized or eliminated. By means of the 360º compass card, the entire sweep of the horizon is visualized in relation to the aircraft heading. 2 optional mounting brackets are offered. TSO C7c Type 1. Deck bracket PACMG- 2 fits Beech Baron, Bonanza, Cessna Skyhawk, Cardinal Skylane, Piper SE. The overhead bracket kit PACMO-U is for custom applications. This compass is made to work in the northern hemisphere only. We can special order for the southern hemisphere.