Originally Posted by
p1ayn
COMAIR has been doing that for two years now and has proven very successful. We have caught the brunt of many jokes in the air but the reality is it does save fuel and money. Happy to see everyone else getting on board and saving fuel thus possibly saving jobs from furlough
Flying at Mach .62 makes sense only if you are at FL180. In the upper 20s and 30s however, every mainline plane getting behind you is way on the back side of the power curve. If the RJ burns 200 PPH per engine more at high speed but the Boeings are able to cruise more efficiently than that's what the flight planners should look at.