A drone propulsion unit includes a propeller with a hub and a plurality of blades, an electric motor with a motor support, and a motor control device, wherein the electric motor includes a fixed part with a stator connected to the motor support and a mobile part with a rotor mobile about an axis of rotation for driving the propeller, the propeller includes a blade with a plurality of electroluminescent diodes and a diode control device, the motor includes a hollow central shaft, and the motor support includes a communication device adapted to communicate with a communication device integrated in the propeller, with the communication devices being positioned on either side of the hollow shaft.

An aircraft includes an aircraft body including one or more exterior surfaces and a projector secured to a component of the aircraft. The projector is configured to selectably project one or more images on the one or more exterior surfaces. A method of displaying a projected image on an aircraft surface includes moving a landing gear assembly of the aircraft from a retracted position to an extending position, activating a projector disposed at the landing gear assembly, and displaying a projected image at the aircraft surface via activation of the projector.

A non-pyrotechnic aerial display apparatus may include a head portion and a wing portion. The head portion may include a front portion, a rear portion, and a plurality of channels extending from the front portion toward the rear portion. The wing portion may extend rearward from the head portion. The wing portion may include a top surface, a bottom surface, a leading edge, a trailing edge, a rear edge extending from the leading edge to the trailing edge, and an airfoil extending along the leading edge. The wing portion may include a counterweight. The apparatus may include one or more forward-facing lights. The apparatus may include one or more rearward-facing lights. Other examples may be described and claimed.

A lighting system for air mobility may include a light emitting unit provided on a boom or a propeller of the air mobility and configured to emit light toward a ground surface so that the light is projected onto a point directed toward the ground surface from the propeller or the boom; and a control unit electrically connected to the light emitting unit and configured to control light emitting modes of the light, emitted by the light emitting unit, based on operating modes of the air mobility or operating modes of the propeller.

The disclosure herein includes a drone assembly, which drone assembly may include: a drone; a screen; and a strut having a first portion and a second portion, wherein the first portion of the strut is coupled to the drone and the second portion of the strut is coupled to the screen.

The disclosure herein includes a drone assembly, which drone assembly may include: a drone; a screen; and a strut having a first portion and a second portion, wherein the first portion of the strut is coupled to the drone and the second portion of the strut is coupled to the screen.

An aircraft passenger service unit signage placard adapted to be retrofitted to a passenger service unit, the placard comprising at least a first signage area and a second signage area, wherein the first signage area is arranged to be illuminated by a switchable illumination means in the passenger service unit and wherein the placard comprises a first and a second layer and photoluminescent material is provided on at least one of the first and second layers of the placard in the second signage area, the second signage area having at least one first icon illuminated by the photoluminescent material such that the first icon is always illuminated in use.

An aircraft passenger service unit signage placard adapted to be retrofitted to a passenger service unit, the placard comprising at least a first signage area and a second signage area, wherein the first signage area is arranged to be illuminated by a switchable illumination means in the passenger service unit and wherein the placard comprises a first and a second layer and photoluminescent material is provided on at least one of the first and second layers of the placard in the second signage area, the second signage area having at least one first icon illuminated by the photoluminescent material such that the first icon is always illuminated in use.

A passenger window shade on an aircraft is provided. The passenger window shade includes a first section of the passenger window shade. The first section forms a substantially flat and thin plane. The first section has a first transparency to visible light. The passenger window shade includes a second section of the passenger window shade situated within the first section. The second section includes a second transparency to visible light that is different from the first transparency such that an image is formed inside the aircraft when visible light is aimed at the passenger window shade from outside the aircraft.

An indicator apparatus for guiding interior aircraft occupants has a mounting device fastenable to a wall portion of the interior and having an indicator conveying an item of visual information to occupants. An indicator can be or is operated electrically, and the indicator can be or is connected to a power supply for operation. To create an indicator apparatus which helps improve orientation of cabin passengers, can be produced, installed and serviced easily, and which can be operated in a fail-safe manner in an emergency situation of the aircraft, the indicator has an at least one-piece layer, on which circuitry necessary for operation is provided in an integrated fashion, and the power supply is formed by a composite structure battery built up layer by layer and can be or is connected to the layer. A method for producing an indicator apparatus of this kind is disclosed.