Among other things, a game includes individual game pieces and an airborne vehicle (having a motor, a battery connected to the motor, a propulsion device connected to the motor, and a game piece support). A controller is configured to activate the motor when a first period of time has passed after one of the individual game pieces has been received at the game piece support and to deactivate the motor when a second period of time has passed after the motor has been activated.

A propeller assembly with at least two propeller blades that are interconnected by associated connection means, the associated connection means defining a common pitch axis for the at least two propeller blades in operation, each one of the at least two propeller blades comprising associated leading and trailing edges that define a respective chord and quarter chord line thereof, wherein the common pitch axis is arranged with a predetermined offset relative to the quarter chord line of each one of the at least two propeller blades, and wherein the associated connection means is adapted to enable, at least in operation in a non-axial inflow field, a passive pitch adjustment of the at least two propeller blades around the common pitch axis.

Flight control method and apparatus for multi-rotor aircraft that is programmed for varied control commands and conditions in the control of the aircraft in flight.

A remote controlled aircraft includes an aircraft that may be flown. A plurality of light emitters is coupled to the aircraft. A plurality of fans is coupled to the aircraft. Each of the fans may move air thereby facilitating each of the fans to urge the aircraft to fly. A control unit is coupled to the aircraft and the control unit is electrically coupled to each of the fans. The control unit includes a global positioning system. Thus, the control unit may identify a position of the aircraft with respect to Earth. A remote control is provided and the remote control may be manipulated. The remote control is in electrical communication with the control unit such that the remote control controls directional flight of the aircraft.

A propulsion system for a vehicle or toy vehicle is disclosed. The system comprises rotary drive means for driving the vehicle along ground, the rotary drive means operating in a plane and having a peripheral ground-engagement part. The system further comprises a rotor comprising one or more rotor blades rotatable about a rotor axis for producing thrust, wherein the rotary drive means and the rotor are positioned relative to each other so that during rotation of the rotor, the rotor blades pass through the plane of the rotary drive means, inside the peripheral ground-engagement part. In this way, the rotor blades are protected by the peripheral ground-engagement part.

A pitching arrangement for a model helicopter includes a securing base, a plurality of servers supported by the securing base, a main connecting shaft linked to the servers, a supporting ring, a control device operatively provided between the servers and axially mounted to the main connecting shaft, and a plurality of connecting rods connecting the servers and the control device through the main connecting shaft, wherein the supporting ring is mounted on the main connecting shaft, wherein the connecting rods are connected to the supporting ring of the main connecting shaft.

There is provided a transmitter for facilitating control of a flying object including an elevation control lever 22 for controlling a flight height of a helicopter 1, a cover 24 through which the elevation control lever 22 passes via an opening 26, a step 27 formed on an edge of the opening 26, and a rotation member 28, which rotates, disposed to a backside of the cover 24, where apart of the cover 24 is formed into a curved surface which overlaps a curved surface of the rotation member 28, and rotational speeds of motors 11, 12 internally mounted on the helicopter 1 are set corresponding to the step 27.

A method for registering one of a plurality of assembly modules operatively coupled to one another in a modular assembly system is provided. A first message including a first identifier of the assembly module is received from one of the plurality of assembly modules. A second message including a second identifier for the assembly module is transmitted to the assembly module. The second identifier is generated based on at least the first identifier. A third message including the second identifier is received from the assembly module. In response to determining that the third message is received, the assembly module is registered as a new assembly module of the modular assembly system. At least one of the receiving, transmitting, determining, and registering is performed by a control module of the plurality of assembly modules.

A discharge platform comprises an air propulsion mechanism that propels the discharge platform through the air. The discharge platform also comprises a special effect storage device that stores a special effect and is operably connected to the discharge platform. Further, the discharge platform comprises a processor. In addition, the discharge platform comprises an air delivery special effect mechanism that discharges a special effect from the special effect storage device toward a destination after receiving an instruction from the processor and during propulsion of the discharge platform through the air by the air propulsion mechanism.

There is provided a control device including an image display unit configured to acquire, from a flying body, an image captured by an imaging device provided in the flying body and to display the image, and a flight instruction generation unit configured to generate a flight instruction for the flying body based on content of an operation performed with respect to the image captured by the imaging device and displayed by the image display unit.