** Canadian plane and train maker's shares up 2.8 pct at C$2.55
** RBC Capital Markets raises rating to "outperform" from "sector perform", citing declining risks in CSeries program
** "We believe we are entering a near-term new order window for the CSeries in the run up to the Paris Air Show in June," RBC analysts say
** Bombardier now has more than sufficient liquidity to launch the CSeries aircraft, they say in a note
** Out of 20 analysts covering the stock, six have "buy" or higher ratings, nine have "hold" and five have "sell"
** Up to Tuesday's close, stock had fallen 40 pct in 12 months