"Thomas Borchert" wrote

The redudancy is not the reason for the price of the Thielert. And under many
operating circumstances, a Thielert conversion might be cheaper than a normal
engine.

Thomas, do you know of a FADEC that at a minimum, does not have dual channels,
for all components, with a detectable warning of a failure in one channel?

I do not know of one single certified FADEC that does not have redundancy. As a
matter of fact, I think I have read that it is a condition to certification,
unless it is proven to have such a very low risk of failure as to not be a
factor. It is not worded exactly like that, but it is something along those
lines.
--
Jim in NC