 Likewise, the rotorcraft's finer details have yet to be fully defined, and are to only be finalised after specifications have been received from the intended users.Additionally, operator acceptance trials have been expected to take about 7-8 years before induction.In February 2017, the MLH proposal remained in the conceptual stage; it was yet to be cleared by HAL's board; accordingly, at the time, it was yet to commence formal design work.