Well. as we fly all DME Arc in LNAV I would expect to see the appropriate RNP for the phase of flight, normally 0.3 for approach. While raw data monitoring is normal, no one in their right mind flys a commercial jet on a DME arc in HDG SEL..why would you? As for speed, VNAV will give a sensible speed base on the next limiting waypoint,...
That's right. It should be against the law to fly with out triple IRS, FMC, LNAV & VNAV - anything else is just dangerous.
Children of the magenta line.
