Multi Modular-Rotorcraft: An Advanced Multi-Functional and Multi-Purpose Rotorcraft

The NASA Revolutionary Vertical Lift Technology project supports advanced air mobility missions through various vertical take-off and landing related projects. These efforts expand rotorcraft technology to improve the quality of life and perform "public good" missions through numerous mission concepts. The work presented herein introduces Multi Modular-Rotorcraft (MMR) technology, which explores the multifunctionality of sub-vehicles to expand the number of simultaneous missions for a rotorcraft. MMR technology can advance aeronautics through inspired transformational innovations. In this paper, the MMR concept is described, and examples of applications, 1) Disaster Relief, 2) Package Delivery, 3) Applied Science, and even 4) Planetary Exploration, are presented as potential reference missions for the MMR. With reference to an applied science mission, results from a rotor sizing demonstration and aerodynamic performance analyses of a MMR sub-vehicle, the Orb, are presented.