This invention is regarding an aircraft transmission that is designed to enable an ornithopter aircraft to take off vertically by generating lift through precision controlled oscillating propellers or wings, similar but unlike a helicopter rotor blade and has the uncanny ability for aerobatic flight. A gearless infinite variable oscillating transmission for ornithopter aircraft oscillatory motion propulsion, wherein the oscillatory motion is generated by a wobble plate and propulsive motion is propellers, wings, or any other propulsive action or phenomena, characterized by two parts, or pairs of elements, of the same potential capacity, which oscillate in series on opposed fronts with each propulsion unit capable of operating independently of the other. Infinite variable oscillating transmission is used to power numerous mechanical devices.