Depending on aircraft type, the Zonal Drying™ System consists of one or more zonal dryer units installed at strategic points in the aircraft. Each unit features a slow-moving rotor impregnated with silica gel...
So is this 15% humidity thing a planned design 'feature' on the 787 or is it a by-product of the condensation problem with some
PR spin to sell it as improved comfort levels ???
In my eyes, these silica gel driers to combat the condensation doesn’t hold much water (no pun intended!), as an engineered high tech solution - if this was by design....