The term usually, but not exclusively, refers to reusable vehicles.
The Falcon 9 is eventually intended to be a reusable vehicle.
The research will also inform India's interest in reusable launch vehicles.
The 1990s saw interest in developing new reusable vehicles.
And, as a reusable vehicle, it has to arrive safely on land to repeat the whole process again.
For those keeping count, this will be the 92d shuttle mission since the reusable vehicles began flying in 1981.
In addition a reusable vehicle must be able to reenter without damage, and land safely.
The technology that is developed during this programme can be applied to develop reusable launch vehicles.
SpaceX is a recent player in the private launch market which has partially reusable vehicles.
Of the choices available for a reusable launch vehicle, it is the most advanced engine.