Originally Posted by
CL65driver
I'll agree with the last poster.. it's ALL about energy management. Our profile calls for 290/.60 climb in the 145XR, but if you accelerate to 310+, and climb out at around that, you can maintain a much higher rate pretty much up to cruise. I was actually shown this by a guy who used to work for Embraer. Doesn't do much for fuel savings though....
I love that. I actually welcome short stops at intermediate altitudes to build up some steam before going for a higher altitude. I flew a heavy XR between EWR and CVG a few days back, and I think we got stopped at FL300 or so on our way up to FL360. By the time we got up near 0.80M, we got our climb to the final. Sure enough, crank that VS up to 3000fpm and she'll do that last 6000 ft. in a hurry, and without bleeding a whole lot of speed.
By the way, have any of you other XJT people seen paperwork recently showing the XRJ climb profile at 0.65M instead of 0.60? Not sure what the rationale was behind 0.60 to begin with, but if you get any slower than that the airplane becomes a dog at higher altitudes. Sucks!