jack: We just installed a venturi-vacuum needle ball which makes me feel much safer. With only a compass for direction I was always worried about flying
into a cloud, especially at night, since the compass goes wirrly in a turn. We have practiced the one minute turn with the needle and find it will bring us out on the 180 deg mark every time! The peace of mind investment was only about $100.00. As far as the ball part goes, our coupe keeps it glued right where it should be all the time. I suppose it might tell us if the rigging was out of line on the plane. Jack Russell n93443 Fresno-Clovis CA
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