Abstract: An airborne vehicle generally comprises a body, a lifting mechanism for lifting the vehicle, and a steering mechanism operable by a user for steering the vehicle. The lifting mechanism comprises first and second counter-rotating propellers mounted in a front end and a rear end, respectively, of the vehicle body. The lifting mechanism further comprises a front air intake and a rear air intake mounted in proximity to and above the first and second propellers, respectively. The steering mechanism comprises a plurality of louvers mounted on a bottom of the vehicle body below the first and second propellers. The operator uses a steering mechanism in a passenger position to adjust inclinations of the louvers so as to steer the vehicle.

Abstract: A built-in child's safety seat for vehicles is disclosed. The safety seat may be conveniently stored within the horizontal sitting surface of a passenger seat when not in use. By a simple pulling motion, a child's safety seat is formed which provides more protection to the child and which is less prone to be misused.