Wiki and AI answers can be really inaccurate, do a bit more research to be sure on most things.  I forgot the nomenclature for the RDF in a B17, and was too lazy to go into my garage and look for it.  AI told me there was no RDF in a B17, radar was used for navigation and bombing.  OK, if they get that one wrong, just how accurate are they about anything?  For giggles and grins, Ask AI how to fix a problem in  a receiver if you include some of the symptoms in the question.

Charlie in NC