Abstract: A control system and a method are adapted to restrain turbulence induced yaw or side movements of an airborne vehicle (AV) that has at least two electrical motors, the motors are disposed one on the left and one on the right side of a longitudinal central axis of the AV. The system comprises a controller that is adapted to receive indications of ambient induced yaw and/or lateral movements of an airborne vehicle and pilot induced control signals of the airborne vehicle, and to issue control signals to control the RPM and/or the propeller pitch angle of the electrically propelled airborne vehicle.

Abstract: A propulsion system for a vehicle comprises at least one propeller and at least one ducted fan. Each of the propellers is mounted on a respective duct of the ducted fan's outer perimeter and is adapted to be driven by a first electric motor. Each of the ducted fans is mounted within the duct and is adapted to be driven by a second electric motor. The rotation speeds and the blade pitch angles of the propellers and of the fans are controllable to achieve optimized efficiency of the propulsion unit, reduction of the noise of the system and minimization of combined torque of the system on the vehicle, by independently controlling the ducted fan RPM, the propeller RPM, and the propeller blades pitch angle.

Abstract: Generally, a vehicle comprising at least one hydrogen releasing element is provided. The vehicle can include at least one hydrogen releasing element coupled to a body of the vehicle. The vehicle can include a hydrogen combustion region positioned adjacent to a predetermined portion of the vehicle body. The vehicle can include at least one ignition element positioned within the hydrogen combustion region that can inflame hydrogen within the hydrogen combustion region. The vehicle can include a housing surrounding the hydrogen combustion region. The housing can form combustion chamber thereby providing additional thrust to the vehicle. In some embodiments, the vehicle is an airborne vehicle.

Abstract: An airborne vehicle made of thermally non-conductive materials and method for thermal conduction in an airborne vehicle are disclosed. The airborne vehicle comprising at least one structural element made of material with high thermal conductivity coefficient embedded in the airborne vehicle body. In some embodiments wherein the thermally conductive structural element is a longitudinal profile with hollow center along it. The method comprising disposing structural element with high thermal conductivity embedded in the airborne vehicle and providing thermal pass with high thermal conductivity from the heat source to the structural element with high thermal conductivity, to allow heat to dissipate through the structural element with high thermal conductivity.