PAI-700 Vertical Card Compass

PAI-700 Vertical Card Compass The most obvious and  primary advantage over fluid damped compasses is the easy-to-steer-by presentation! At a  glance the aero designed lubber line on the lens enables one to view the entire 360 degree dial in its proper relation to flight. The PAI-700 Vertical Card Compass does satisfy the FAA requirement that each aircraft must have a magnetic compass. The PAI-700 is magnet driven thus it is subject to lead and lag, however, these tendencies are greatly reduced due to the absence of pendulosity. It is inherently stable due to the use of eddy current damping which is a natural phenomenon built into the basic design. The PAI-700 Vertical Card Compass is manufactured exclusively by Precision Aviation, Inc. in their Houston Texas facility under authorization by the U.S. Department of Transportation, Federal Aviation Administration, citing 14CFR-21 and TSO C7c Type 1 Directional Instrument, Non-Stabilized.