Typical ROD with a failed engine in the PC-12 is around 800-1,000fpm. And from FL180 down to the ground (assuming ground is at MSL) would give you a glide range of pretty close to 45nm's, if not a bit more
What? I make that a glide ration of about 15:1. Right up there with a V-tailed Bonanza. Ain't nobody in here gonna believe that!
Dr 