Revision 4 - December 17,1998 Ryan TCAD 9900 Series Page 3-10
3.16 DISCLAIMER
The Ryan TCAD has been meticulously designed to provide warning of nearby traffic. As
with any device, there are significant limitations. The TCAD can only detect signals if
they are received. There are many impediments that prevent the signal from being
received, including the lack of interrogation signals, and the relative signal patterns of the
transmitting and receiving antennas. We must declare, in the strongest of terms, that
TCAD is not foolproof, and will not warn of nearby traffic in every instance, nor will it, in
itself, prevent collisions. We make no claim in this regard. The pilot must make the
avoidance decisions. We do claim the TCAD is a very helpful device that can and has on
many occasions saved the aircraft and occupants from disaster. Further, it aids in traffic
awareness and traffic avoidance. The TCAD is an aid to the see and avoid process and
does not replace the common sense and good judgment of the pilot.
As a pilot, you must be relied upon for a certain level of competence and a high standard
of knowledge about the airspace, aerodynamics, regulations, and the Ryan TCAD. This
includes knowledge of the limitations as well as the capabilities of the TCAD. This
equipment is designed to increase the pilot's awareness of nearby traffic. It will not detect
every aircraft. It is not designed to replace the see and avoid responsibility of the pilot, or
the ATC responsibility in the IFR environment. The information provided by TCAD is not
intended to lessen in any manner the pilot's obligation to see and avoid traffic. The pilot in
command of an aircraft is directly responsible for, and is the final authority as to, the
operation of that aircraft.
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