A rollout ceremony held Saturday in Nagoya, Japan, for the Mitsubishi MRJ regional jet marked a symbolic end of a 50-year wait for a new Japanese airliner to take shape. Not since the NAMC YS-11 turboprop flew for the first time in 1962 has a Japanese effort to break into the commercial airplane market reached such a state of progress. Under development for some seven years, the MRJ finally looks like an airplane capable of flying—and ultimately delivering the 20-percent fuel efficiency improvement over current designs Mitsubishi Aircraft advertises.