Incremental flight testing to 100 km altitude was planned to be carried out between 2007 and 2009 with increasingly larger and more capable prototypes. The full-scale vehicle was initially expected to be operational for revenue service as early as 2010,[16] though that goal was not met and the first full-scale test flight of a New Shepard vehicle was successfully completed 2015, with commercial service currently aimed for no earlier than 2020.[75] The vehicle could fly up to 50 times a year.