Anyone announcing that the first generation of their motor will start hot-fire testing this year and be ready for service by X date is a liar or a salesman. Th

Anyone announcing that the first generation of their motor will start hot-fire testing this year and be ready for service by X date is a liar or a salesman. There's many a kaboom between test and ship. The other dates are to match the current NASA bid timescale, so they're pure marketronium.