A rotor mounting boom assembly for a personal aircraft, the rotor mounting boom assembly comprising: a boom capable of being coupled to a wing of the personal aircraft via a boom attachment interface; a vertical lift rotor assembly coupled to the boom, the vertical lift rotor assembly having a rotor (101a to 101f); a rotor controller assembly disposed on the boom, the rotor controller assembly comprising: a rotor controller for sending control signals to the vertical lift rotor assembly; and a controller enclosure (510; 610; 910A) coupled to the boom and encasing components of the rotor control assembly, wherein the controller enclosure includes one of: (a) where the controller enclosure is disposed around the boom, an air inlet positioned below the rotor path through which airflow generated by the rotor can pass to an interior of the controller enclosure; and (b) where the controller enclosure is disposed within the boom: (i) a duct interface, through which airflow generated by the rotor can pass to an interior of the controller enclosure; and (ii) a duct (650A; 950A); wherein said duct interface is coupleable to said duct (650A; 950A), wherein said duct is coupleable to an air inlet (614A, 614B; 914A, 914B) positioned on the boom below the rotor path; and wherein the controller enclosure further comprises an air outlet (516; 616A; 916A) for allowing air flowing through the controller enclosure to exit the controller enclosure. a boom capable of being coupled to a wing of the personal aircraft via a boom attachment interface; a vertical lift rotor assembly coupled to the boom, the vertical lift rotor assembly having a rotor (101a to 101f); a rotor controller assembly disposed on the boom, the rotor controller assembly comprising: a rotor controller for sending control signals to the vertical lift rotor assembly; and a controller enclosure (510; 610; 910A) coupled to the boom and encasing components of the rotor control assembly, wherein the controller enclosure includes one of: (a) where the controller enclosure is disposed around the boom, an air inlet positioned below the rotor path through which airflow generated by the rotor can pass to an interior of the controller enclosure; and (b) where the controller enclosure is disposed within the boom: (i) a duct interface, through which airflow generated by the rotor can pass to an interior of the controller enclosure; and (ii) a duct (650A; 950A); wherein said duct interface is coupleable to said duct (650A; 950A), wherein said duct is coupleable to an air inlet (614A, 614B; 914A, 914B) positioned on the boom below the rotor path; and wherein the controller enclosure further comprises an air outlet (516; 616A; 916A) for allowing air flowing through the controller enclosure to exit the controller enclosure. a rotor controller for sending control signals to the vertical lift rotor assembly; and a controller enclosure (510; 610; 910A) coupled to the boom and encasing components of the rotor control assembly, wherein the controller enclosure includes one of: (a) where the controller enclosure is disposed around the boom, an air inlet positioned below the rotor path through which airflow generated by the rotor can pass to an interior of the controller enclosure; and (b) where the controller enclosure is disposed within the boom: (i) a duct interface, through which airflow generated by the rotor can pass to an interior of the controller enclosure; and (ii) a duct (650A; 950A); wherein said duct interface is coupleable to said duct (650A; 950A), wherein said duct is coupleable to an air inlet (614A, 614B; 914A, 914B) positioned on the boom below the rotor path; and (a) where the controller enclosure is disposed around the boom, an air inlet positioned below the rotor path through which airflow generated by the rotor can pass to an interior of the controller enclosure; and (b) where the controller enclosure is disposed within the boom: (i) a duct interface, through which airflow generated by the rotor can pass to an interior of the controller enclosure; and (ii) a duct (650A; 950A); wherein said duct interface is coupleable to said duct (650A; 950A), wherein said duct is coupleable to an air inlet (614A, 614B; 914A, 914B) positioned on the boom below the rotor path; and (i) a duct interface, through which airflow generated by the rotor can pass to an interior of the controller enclosure; and (ii) a duct (650A; 950A); wherein said duct interface is coupleable to said duct (650A; 950A), wherein said duct is coupleable to an air inlet (614A, 614B; 914A, 914B) positioned on the boom below the rotor path; and wherein the controller enclosure further comprises an air outlet (516; 616A; 916A) for allowing air flowing through the controller enclosure to exit the controller enclosure.