Originally Posted by
drauk
FF,
It has to meet certain power requirements - redundant alternators I think. Pricey for sure they if they went as far as fitting everything else and not those maybe it was just a certification issue?
Having scanned Bookworm's referenced doc, it looks like the real cost will be in the detailed analysis of potential icing accumulation and the flight tests in actual icing conditions. The dual power supplies, deiced static sources, ice light, ice measurement method, windshield plate, deiced fuel vents, etc. are probably 'relatively' low cost
