The Hayabusa is a powered battle armor system, similar to the Mjolnir Armor, except stemming from Project HAYABUSA as opposed to Project MJOLNIR. It was developed by RKD, an Earth-based "think-tank" in the year 2536, six years before the MJOLNIR Mark V first entered production. It was presented to the UNSC Ordnance Committee as an answer to the self-contained powered armor problem. Advanced materials are used in the production of the Hayabusa armor reducing the weight of the current generation armor by nearly a third at that time.