Doug,

 

Thanks for the info on the de-iced Legacy.  I'm building a Legacy with the IO550N and the 3 blade Hartzell prop.  I've wired the panel with a prop de-ice switch.  I was wondering how you discovered the 3 knot cruise TAS loss due to the prop de-ice.  Was this info provided by Hartzell or were you able to actually test/verify this TAS loss?

 

George