"Peter R." wrote in message
...

Syracuse, NY. From what I understand about the system, the difference
between the not known icing and the known icing TKS system has to do
with redundancy, not functionality. In other words, known ice TKS
system has a backup pump and, IIRC, requires backup electrical.

Another difference is in-flight icing testing of a prototype airplane is
required for known-ice certification.



--------------------
Richard Kaplan, CFII

www.flyimc.com