Because Jason Hill wants to manufacture and control absolutely every nut and bolt on the aircraft. A bold visionary, or a crackpot. You decide.
what is wrong with using of-the-shelve items from existing mass production lines for the little things and move on to the important stuff
AS350 used the Renault Horn as an RRPM alarm, and Lamborghini used Nissan 300ZX headlights. examples are countless