An experimental technique for accelerating a single liquid droplet to high impact velocities against a solid target surface using a propellant gas

•A new technique was proposed for accelerating a single droplet to obtain extremely high impact velocities.•An air flow delivery system was designed to provide uni-directional high velocity internal flow that propels and accelerates the droplet.•The method enhanced the droplet impact We number by more than 50% above the highest previously reported impact We number in the literature.