Originally Posted by
Speedbird2263
It also stands for Optimized Descent Profile, which if followed exactly allows for a Constant Descent, thereby saving fuel and negating the "step-down" and level off on an RNAV STAR with multiple step downs. An example wouldbe the TRUPS1 RNAV into DCA.
-2263
MEM, DEN, IAD/DCA, and other airports got them recently, I'm sure there's a lot more to come.
They're "the latest thing".
Seems as if they're like RNAV departures at times. Spend all the time briefing them and making sure the FMS is set up correctly, only to have the controllers break you off, assign a hard altitude instead of the window allowed, etc etc etc.