Originally Posted by
tpersuit
Do the math, our 145XR's burn 2500 lbs/hr at FL370 and cruise at a TAS of 460. We would get to our destination in a fraction of the time of a Prop flying at FL250 and burning 2400 lbs/hr. We would actually be more fuel efficient.
The dash-200 burns 1300 lbs/hr at FL250 (600-650 lbs/hr per engine). At least that's what our cruise performance charts give us, at around 275 KTS TAS.