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.