Abstract: An apparatus, according to an exemplary aspect of the present disclosure includes, among other things, a vehicle structural component that has a plurality of open cells surrounding an open center section. The open center section comprises a multi-corner open center. A method according to an exemplary aspect of the present disclosure includes, among other things, extruding a vehicle structural component from a metallic material, wherein the vehicle structural component includes a plurality of open cells surrounding an open center section, and wherein the plurality of open cells each comprise a polygonal cross-section and the open center section comprises a multi-corner open center.

Abstract: An impact energy absorbing system for a vehicle includes a first impact energy absorbing structure to absorb energy from an impact with an external object, and a second energy absorbing structure to absorb energy from an impact with an internal displaceable object internal. The second energy absorbing structure may be disposed between the displaceable object and a protected object internal to the vehicle. The second impact energy absorbing structure may be disposed within the vehicle and configured to protect the protected object from impact by the displaceable object being displaced toward the protected object during a collision. Additionally, the second impact energy absorbing structure may cause the displaceable object to avoid impacting and/or damaging the protected object.

Abstract: An impact protection reinforcement of a vehicle construction, which is supportively fastenable in the vehicle construction against the action of external mechanical extraordinary load conditions and comprises the following features: an elongated profile element with a longitudinal center line and a transversal center line arranged transversely to the longitudinal center line, which has in the longitudinal direction at each end side a fastening end and a central part therebetween, wherein the central part consists of a circumferentially closed hollow profile with a base layer and a top layer arranged opposite to the base layer, which are connected to each other via lateral faces, and the fastening ends each have a flat shape with at least two fastening points which are spaced apart differently from the transversal center line and the longitudinal center line and are provided as welding connection points to the vehicle construction.

Abstract: A vehicle having a reinforcement brace includes, among other things, an aft structure, a passenger side strut, a driver side strut, a passenger side load transfer frame coupling the aft structure to the passenger side strut and being configured to transfer a load applied to the aft structure from a rear of a vehicle to the passenger side strut, and a driver side load transfer frame coupling the aft structure to the driver side strut and being configured to transfer a load applied to the aft structure from the rear of the vehicle to the driver side strut.

Abstract: A front body for a vehicle includes: a front dash cross member disposed under a dash panel and having first and second ends respectively connected to front side members; a front lower cross member extending in a transverse direction of the vehicle; a front center support member extending in a longitudinal direction of the vehicle and located under an engine room of the vehicle; and a center member having a front end connected to the front dash cross member, and extending rearward along a floor of the vehicle. In particular, the front center support member have a front end connected to the front lower cross member and a rear end connected to the front dash cross member.

Abstract: A vehicle pillar structure is equipped with a pillar main body having a closed cross-section extending along a longitudinal direction; a separator which is attached to the inside of the pillar main body to extend in a direction intersecting the longitudinal direction of the pillar main body, and partitions the inside of the pillar main body into a plurality of space parts in the longitudinal direction; and an insertion member which extends along the longitudinal direction of the pillar main body and is disposed inside the pillar main body to straddle the plurality of the space parts. A filling hole for filling a filler in any one of the space parts inside is provided in the pillar main body. A guide part configured to guide the insertion member to a position at which the filling hole is not blocked is provided in the separator.

Abstract: A front body of a vehicle includes an A-pillar lower part configured with an inner panel and an outer panel to make a single member. The A-pillar lower part extends downward from a front end of an A-pillar and has a reinforcement panel between the inner panel and the outer panel. The reinforcement panel extends in a longitudinal direction to divide an inside of the A-pillar lower part into two members.

Abstract: A vehicle body assembly structure includes a floor assembly including a floor, a front coupling portion provided at a front of the floor, and a rear coupling portion provided at a rear of the floor, and an upper assembly including a roof frame, a front mounting portion matched to the front coupling portion at a front of the roof frame, and a rear mounting portion matched to the rear coupling portion at a rear of the roof frame, wherein each of the front coupling portion and the front mounting portion and the rear coupling portion and the rear mounting portion are connected in a slide coupling structure.

Abstract: A vehicle front structure having an upper member joined to a damper base and being capable of absorbing a larger load when a vehicle is in full-lap collision or offset collision and comprises a pair of left and right upper members disposed respectively on left and right sides of the vehicle a pair of left and right damper bases in each of which a damper is fitted, wherein each of the upper members includes a main upper member portion having a cross section in a rectangular shape that is perpendicular to an axis thereof, the left and right damper bases are joined respectively to the left and right upper members at upper portions of the main upper member portions, and each of the main upper member portions includes a lower portion having a pair of indented portions formed at both corner portions in a vehicle width direction of the lower portion of and a step portion formed to extend in the vehicle width direction and connect the pair of the indented portions.

Abstract: The disclosure provides a vehicle front structure that includes a dash panel that separates a front compartment and a vehicle cabin from each other, and dash members attached to a surface of the dash panel on a side of the vehicle cabin. Right and left wheel house portions are provided in right and left lower half portions of the dash panel, respectively, the right and left wheel house portions projecting towards the vehicle cabin so as to configure rear walls of wheel houses for front tire wheel assemblies, respectively. The dash members are attached to surfaces of the wheel house portions on the vehicle cabin side, respectively, so as to obliquely extend downward and inward in a vehicle width direction from upper ends of the wheel house portions in the vehicle width direction, respectively.

Abstract: A connection structure of a vehicle body includes a roof side rail member extending in a longitudinal direction of the vehicle body, a roof rear cross member extending in a transverse direction of the vehicle body, and having an end coupled to the roof side rail member, a rear pillar member extending in a vertical direction of the vehicle body, and having an upper portion coupled to the roof side rail member and aligned with the end of the roof rear cross member, wherein the upper portion of the rear pillar member and the roof side rail member are coupled to each other by an insertion protrusion and an insertion groove, and a cover bracket covering a portion where the roof side rail member, the roof rear cross member, and the rear pillar member are connected to each other.

Abstract: An alignment device includes a first body and a second body, at least one retention member flexibly coupled to the first body, and a locking member coupled to the first body. The second body has an outer surface and an inner surface defining a cylindrical wall, the cylindrical wall defining a cylindrical opening, a first retention opening extending through the cylindrical wall and a second retention opening extending through the cylindrical wall. The first body translates within the cylindrical opening of the second body and the locking member engages with the first retention opening to position the alignment device in a first position and the locking member engages with the second retention opening to position the alignment device in a second position.

Abstract: A suspension system (2) comprising two flanges (10A, 10B), defining respective absolute reference positions, the second flange (10B) defining a relative reference position relative to the first flange (10A); and a core member (17), which is mobile only along a two degrees of freedom (M19, R19), a damper (21) applying an elastic return for bringing back the core member (17) to two degree reference positions; wherein the positions of the flanges (10A, 10B) and of the core member (17) are mechanically linked so that: when the flanges (10A, 10B) are in the absolute reference positions, the core member (17) is in the two degree reference positions; when the second flange (10B) is away from the relative reference position, the core member is away from the first degree reference position; and when the flanges (10A, 10B) are away from the absolute reference positions, the core member is away from the second degree reference position.

Abstract: A track for traction of a vehicle, such as an agricultural vehicle, an industrial vehicle (e.g., a construction vehicle), a military vehicle, or another off-road vehicle, is provided. The track comprises a ground-engaging outer surface for engaging the ground and a plurality of traction projections projecting from the ground-engaging outer surface and distributed in a longitudinal direction of the track. The traction projections may be designed to enhance their resistance to deterioration during use. For example, a blowout resistance of each traction projection may be enhanced to prevent or at least reduce a potential for blowout of the traction projection under repeated loads which may induce heat buildup within it. Also, a wear resistance of the traction projection may be enhanced such that the traction projection wears less rapidly. A system for protecting a track against potential occurrence of blowout is also provided.

Abstract: A robotic obstacle-crossing device mainly includes a wheel body and an obstacle-crossing body, wherein the wheel body includes a wheel part, a first obstacle-crossing part and a second obstacle-crossing part. When the sweeping robot tilts, the plurality of first recessed portions and the plurality of second recessed portions provided on the periphery of the first obstacle-crossing part and the second obstacle-crossing part provide a climbing function. In addition, when the sweeping robot encounters obstacles or steps, the obstacle-crossing body can provide robot the function of the obstacle-crossing or climbing, thereby reducing the number of situations when the sweeping robot is trapped or unable to effectively climb upon encountering an obstacle or a steep road surface.

Abstract: Systems, apparatus and methods to implement sectional design (e.g., in quadrants) of an autonomous vehicle may include modular construction techniques to assemble an autonomous vehicle from multiple structural sections. The multiple structural sections may be configured to implement radial and bilateral symmetry. A structural section based configuration may include a power supply configuration (e.g., using rechargeable batteries) including a double-backed power supply system. The power supply system may include a kill switch disposed on a power supply (e.g., at an end of a rechargeable battery). The kill switch may be configured to disable the power supply system in the event of an emergency or after a collision, for example. The radial and bilateral symmetry may provide for bi-directional driving operations of the autonomous vehicle as the vehicle may not have a designated front end or a back end.

Abstract: A quick release buckle device comprises a hanger seat and a limiting unit. The hanger seat includes a first pivotal portion and is connected to a first hook. The limiting unit includes a first stopper and a first pin. An end of the first stopper is pivotably mounted to the first pivotal portion. The first stopper is swayable between a first stop position and a first release position. The first pivotal portion has a first sliding groove. The first stopper has a second sliding groove at a non-parallel angle to the first sliding groove. The first pin is slidably received in the first and second sliding grooves.

Abstract: A storage box power supply structure for a saddled vehicle includes a storage box (30), a carrier (50) configured to detachably mount the storage box (30) on a vehicle body, a stopper (36) configured to position the storage box (30) on the carrier (50), a stopper receiving section (56) configured to receive the stopper (36), a stopper-side terminal (70) provided on the stopper (36) and configured to supply electric power to an electrical component (46), and a receiving-side terminal (80) provided on the stopper receiving section (56), connected to the stopper-side terminal (70) when the storage box (30) is mounted on the carrier (50) and configured to rub against the stopper-side terminal (70).

Abstract: A saddle riding vehicle includes a pair of left and right front forks (2L, 2R) configured to support a front wheel (Wf), a front fender (3) supported by the pair of left and right front forks (2L, 2R) and configured to cover the front wheel (Wf) from above, and an object information acquisition device (13) configured to image an outer side of the vehicle. An upper wall of the front fender (3) has an opening section (12) facing outside of the vehicle, and the object information acquisition device (13) is disposed in the opening section (12) such that an information acquisition part (13a) faces outside of the vehicle.

Abstract: A control system for a two-wheeled vehicle, including an inertial measurement unit (IMU); one or more control moment gyroscopes (CMGs); one or more CMG controllers to control the one or more CMGs; an accelerometer to measure a y-axis acceleration for the vehicle, the y-axis being perpendicular to a direction of travel of the vehicle and parallel to a ground surface; and a processing element to calculate a roll angle for the vehicle based at least in part on the y-axis acceleration measured by the accelerometer, determine a force component based at least in part on the calculated roll angle, and generate a CMG command for a CMG gimbal rate based at least in part on the determined force component.

Abstract: A bicycle drive unit includes a housing, a crankshaft and a propulsion assist motor. The housing is configured to be coupled to a frame of a bicycle. The housing includes first and second portions. The crankshaft is provided to the first portion of the housing. The propulsion assist motor is provided to the second portion of the housing. The propulsion assist has a rotational axis extending in a direction intersecting with a direction in which the crankshaft extends. A maximum dimension of the first portion in the direction in which the crankshaft extends is less than or equal to 100 mm. A maximum output torque of the propulsion assist motor is greater than or equal to 10 Nm and less than or equal to 80 Nm.

Abstract: A human-powered vehicle control device includes an electronic controller that controls a motor. The motor assists in propulsion of a human-powered vehicle including a transmission configured to change, in steps, a first ratio of a rotational speed of a drive wheel to a rotational speed of a rotary body to which human drive force is input. The controller changes a motor control state from a third control state to a fourth control state when the first ratio is changed by the transmission or a signal is received for changing the first ratio. The controller changes the motor control state from the fourth control state to a fifth control state in accordance with a value related to at least one of a speed of the human-powered vehicle, the human drive force, an inclination angle of the human-powered vehicle, and a state of a rider of the human-powered vehicle.

Abstract: A bicycle derailleur comprises a base member, a movable member, a chain guide, and a resistance applying structure. The chain guide is rotatably coupled to the movable member about a pivot axis. The resistance applying structure includes a rotational one-way clutch and an elastic portion. The rotational one-way clutch includes a first engagement member and a second engagement member. The first engagement member has a first axially facing surface and a first engagement profile provided to the first axially facing surface. The second engagement member has a second axially facing surface and a second engagement profile provided to the second axially facing surface. The elastic portion is provided to at least one of the first axially facing surface of the first engagement member and the second axially facing surface of the second engagement member.

Abstract: A guide element for bicycle drive means includes a main bearing pin for fixing a swing arm bearing. Further, a spacer sleeve is provided which is arranged on the main bearing pin for reducing a distance between a drive ring and a bicycle frame element.

Abstract: The present invention is directed broadly to an underwater appendage assembly (10) of a marine vessel (12). The underwater appendage assembly (10) is in the form of a rudder assembly fitted to a bow section (14) of the vessel (12). The rudder assembly comprises an appendage in the form of a rudder foil (18) connected to a flapper member (20). The flapper member (20) is arranged whereby movement and more particularly pitching, of the vessel (12) induces deflection of the flapper member (20) relative to the rudder foil (18). This deflection in the flapper member (20) provides an oscillating movement of the flapper member (20) in a flapping action which is substantially synchronised with movement of the vessel (12) upward and downward. The flapping action of the flapper member (20) is effective in promoting forward propulsion of the vessel (12).

Abstract: An integrated thruster and ballast system in accordance with some examples herein may include a conduit disposed within a hull of the boat. The conduit includes a first opening in fluid communication with a body of water, a second opening in selective fluid communication with the body of water, and an outlet disposed within the boat. The integrated thruster and ballast system includes a ballast tank in selective fluid communication with the conduit via the outlet, a thruster disposed within the conduit and configured to move water through the conduit, a first valve disposed in the conduit and configured to selectively divide or establish the fluid communication between the conduit and the ballast tank; and a second valve disposed in the conduit and configured to selectively divide or establish the fluid communication between the second opening and the body of water.

Abstract: A survival craft comprises a hull (10) formed from inflatable members (12, 13) and mounting a powered propulsion system (18, 19) for the survival craft. A superstructure (11) is mounted on the hull and formed from inflatable members (25, 26, 29a-29i) and a flexible roof (28) supported by the inflatable members (25, 26, 29a-29i). The superstructure provides the hull (10) with increased longitudinal rigidity that reduces the tendency of the hull (10) to bow longitudinally when the propulsion system (18, 19) is operating. The survival craft forms part of a marine escape system with the survival craft deflated and packed in a container including an inflation system for the survival craft. The system has a deployment system for amounting on a marine structure and carrying the container with the deployment system transferring the container from the structure to the water where the inflation system inflates the survival craft for access by persons.

Abstract: The present invention concerns a handling system and method for use with a carrier vehicle or structure for unloading from, loading to and storing a smaller vehicle or body aboard the carrier vehicle or structure. The system includes a cradle for supporting a smaller vehicle or body therein. The cradle is mounted to a carrier vehicle or structure and is configured to be pivotable between a tilted position in which a smaller vehicle or body can be unloaded from or loaded into the cradle and a level position in which said smaller vehicle or body is stored aboard the carrier vehicle or structure. The system also includes at least one linear actuator for driving movement of the cradle between said tilted position and said level position.

Abstract: Icebreaker (10) for a vessel (12), where the icebreaker (10) is connected to a bow (12a) of a vessel (12) for breaking up solid ice (40) floating on a water surface, the icebreaker (10) comprises a central part (14) sliding on a first side of the ice (40) and two or more side parts (16) sliding on an opposite part of the ice (40). The centre part (14) and the side parts (16) extend in parallel forward and works against each other when breaking the ice (40) to prevent the ice (40) from lifting, wherein a lower edge of the side parts (16), being in contact with the ice (40), is narrow and sharp to initiate breaking lines (50) in the ice (40), and the centre part (14) comprises a forward protruding cam structure (14a) to break the ice (40) between the side parts (16).

Abstract: A trolling motor assembly for use with a watercraft and for wirelessly communicating marine data with a remote electronic device. The assembly includes a trolling motor housing coupled to a second end of a main shaft and having mounted therein a propulsion motor for providing propulsion power to the watercraft and a sonar transducer assembly for generating marine data about an underwater environment relative to the watercraft, and a main housing coupled to a first end of the main shaft and having mounted therein a processor for processing the marine data received from the sonar transducer assembly, and a wireless module for wirelessly transmitting the marine data to the remote electronic device.

Abstract: This invention relates to a survival craft comprising a hull (10) formed from inflatable members, an optional canopy support structure carried by the hull and formed from inflatable members, and an inflatable wall structure (11). The invention also relates to rigid pod (19) configured to carry a survival craft in a deflated state and be coupled to the hull when the craft is in an inflated state. The inflatable parts may be formed from drop thread material.

Abstract: A method for regulating the buoyancy of an underwater vehicle in such a way that it substantially exhibits a predetermined target buoyancy Fc when it is immersed in a volume of liquid delimited by a first surface and a second surface, along a vertical axis, the method includes starting from an initial buoyancy of the vehicle that keeps the vehicle at the level of the first surface, a first step of modifying the density of the vehicle so that it moves closer to the second surface, the first step being implemented as far as a second step of detecting the crossing, by the vehicle, of a predetermined non-zero threshold on distance with respect to the first surface, along the vertical axis, then a third step of modifying the density of the vehicle until the vehicle exhibits substantially the target buoyancy.

Abstract: A staggered engine mount transom that extends from the primary engine mount transom of a boat for increasing the number of outboard engines mounted on a boat. A transom extension can include one or more supports for a transom section to which the outboard engines can be mounted. Engines mounted on a transom and a transom section can have overlapping operating widths and closer propeller center lines of propulsion. A transom extension can also have one or more engine pods in which outboard engines can be mounted so that the engine operating widths further overlap and the center lines of propulsion are even closer together. This allows more outboard engines to be mounted on a boat than can be mounted on just a single plane transom.

Abstract: An outboard motor includes an outboard-motor main-body, an anti-ventilation plate, and a foreign-matter collection apparatus. The anti-ventilation plate is provided on the outboard-motor main-body. The foreign-matter collection apparatus is provided above the anti-ventilation plate and outside the outboard-motor main-body and located at a height such that a water intake is submerged under water when a ship to which the outboard-motor main-body has been attached is in a pre-planing state.

Abstract: A system and method for a stand up paddle board that utilizes a vertical hollow protrusion through the paddle board that supports the propulsion system and is comprised of two assemblies; a motor and propeller assembly, and a battery and control assembly, the location of the hollow protrusion mitigating the negative aspects of propelling the board with a propeller and the extra weight of the motorized system on the board's balance and maneuverability characteristics.

Abstract: A watercraft includes a hull structure, a deck structure, and a propulsion system. The hull structure includes at least one hull each defining an interior. The deck structure is mounted to the hull structure. The propulsion system is adapted for moving the watercraft within a body of water, and includes an electric motor and an energy storage device coupled to the electric motor. The electric motor and the energy storage device are positioned adjacent one another within an area including at least one of the interior of the at least one hull.

Abstract: A first sensor detects first environment information indicating a shape of a shore arrival location and a positional relationship between the shore arrival location and a boat body. A second sensor, different from the first sensor, detects second environment information indicating the shape of the shore arrival location and the positional relationship between the shore arrival location and the boat body. A controller is communicatively connected to the first sensor and the second sensor. When the distance from the boat body to the shore arrival location is greater than a predetermined distance threshold, the controller generates, based on the first environment information, an instruction signal to control a propulsion device to as to cause the boat body to arrive at the shore arrival location. When the distance from the boat body to the shore arrival location is equal to or less than the distance threshold, the controller generates an instruction signal based on the second environment information.

Abstract: An aircraft fuselage includes: at least one lower part, at least one upper part, structural connections connecting the lower part and the upper part in joining zones, in each joining zone, at least one space between the lower and upper parts and the structural connections, and a transparent wall for closing off each space.

Abstract: A lower fuselage shell for an aircraft rear fuselage section, wherein the lower fuselage shell is made of a composite material and comprises at least one lower skin and stringers integrally formed with the lower skin, and frame segments extending crosswise relative to the stringers. Shear-ties are co-cured or co-bonded with the lower skin and extend crosswise relative to the stringers. Frame segments are fastened to the shear-ties, such that the frame segments are distanced from the lower skin. An aircraft rear fuselage section comprises an upper fuselage shell and the described lower fuselage shell. The upper fuselage shell has an upper skin reinforced with omega-shaped stringers, and the lower shell has a lower skin reinforced with T-shaped stringers.

Abstract: A composite core assembly includes a composite core structure having internal material interfaces and an attachment rail coupled to the composite core structure. The attachment rail includes a first planar surface and a second planar surface adjoined with the first planar surface. The first planar surface is arranged parallel to an internal material interface plane of the composite core structure, and the first planar portion is at least partially integrated into the composite core structure in an internal material interface plane. At least a portion of the first planar surface extends beyond a perimeter surface of the composite core structure, and the second planar surface is configured to attach to the surrounding support member. The core material does not have net edge facets or flat edges positioned next to surrounding structure, and/or may not have a structure arranged parallel to the adjacent support structure to attach to the support structure.

Abstract: An aircraft (101) is provided with a single centrally located inceptor (110) for controlling pitch and roll of the aircraft. The inceptor (110) is provided with a double grip (11, 112) so that it may be comfortably operated by either a pilot or a co-pilot. A central location for the inceptor ensures that its motion and position is visible to both pilot and co-pilot. Not only is this a benefit from a safety point of view but also during pilot training. Alternatively, two inceptors (411, 412) are provided in the centre console (406) adjacent to one another for operation respectively by the pilot and co-pilot and may be mechanically linked. Optionally, the aircraft may be provided with outboard throttle quadrants (117, 118) for operation respectively by the co-pilot and pilot. The outboard throttle quadrants may be mechanically linked together.

Abstract: A rudder control unit includes a single-piece main module mobile on a curved support frame. The rudder control unit includes a curved support and guide frame to be mounted in a floor of the aircraft, and a unique main module including the pedals and a set of functionalities, the main module configured such that it is movable and positioned on the support and guide frame using a movement unit, thus making it possible to obtain an extremely simplified architecture with a reduced number of pieces.

Abstract: An active flow control system for generating pitch control moments for an aircraft during flight. The system includes a nozzle disposed proximate the aft end of the aircraft. The nozzle is configured to discharge a gas stream in the aftward direction. A pressurized air system includes a pressurized air source and one or more injectors configured to selectively inject pressurized air into the nozzle to influence the path of the gas stream. Based upon which injectors are injecting pressurized air into the nozzle, the gas stream exits the nozzle generating no pitch control moment, generating a pitch down control moment or generating a pitch up control moment.

Abstract: Aircraft main landing gear drag brace backup fitting assemblies and related methods are described herein. An example aircraft wing disclosed herein includes a rear spar having a rear side and a front side opposite the rear side, a side-of-body rib coupled to the rear spar, a rib post disposed on the front side of the rear spar, where the rib post is to couple a second rib to the rear spar, a side-of-body fitting coupled to the side-of-body rib, an intercostal member coupled between the side-of-body fitting and the rib post, and a drag brace fitting disposed on the rear side of the rear spar. The drag brace fitting is coupled to the rib post and the side-of-body fitting via a first plurality of fasteners extending through the rear spar.

Abstract: An aircraft undercarriage carrying at least two wheels (4) and for mounting on an aircraft structure to be movable between a deployed position and a retracted position, the undercarriage being characterized in that the wheels are rotatably mounted on axles (3) carried by arms (2) hinged to a bottom portion of a strut-leg (1) of the undercarriage, each arm being associated with a shock absorber (5) coupled firstly to the arm and secondly to a collar (6) that extends around the strut-leg and that is mounted to slide on the strut-leg between a high position in which the collar bears against an abutment (7) of the strut-leg when the undercarriage is in the deployed position and a low position into which the collar is taken when the undercarriage is moved from the deployed position to the retracted position, so as to bring the wheels closer together.

Abstract: One example of a mount for a rotorcraft comprises a structural support member, a bracket, and an elastomer. The bracket is configured to attach to a component of the rotorcraft. The component of the rotorcraft produces vibrations at a first frequency. The structural support member configured to transfer a weight of the component of a rotorcraft to an airframe of the rotorcraft. A rotor system of the aircraft vibrates the airframe of the rotorcraft at a second frequency. The elastomer is located between a structural support member and a bracket. The elastomer is configured to attenuate noise caused by the vibrations at the first frequency by isolating the vibrations at the first frequency from reaching the airframe of the rotorcraft while the airframe vibrates at the second frequency.

Abstract: The present invention provides a drone comprising: a drone body; main rotors generating a driving force; sub-rotors generating a driving force instead of the main rotor above and below the main rotor, respectively; connection frames connecting the sub-rotors to the drone body above and below the main rotor, respectively; a detector detecting failure of the main rotors; and a controller controlling the sub-rotors to generate a driving force when detecting failure of the main rotor, wherein the connection frame is rotatably connected to the drone body, rotates, and moves the sub-rotor; wherein each connection frame comprises a rotation frame protruded upward or downward from the drone body and rotatably connected to the drone body; a horizontal frame horizontally connecting the sub-rotor to the rotation frame, and a balance weight protruded from the rotation frame in an opposite direction to the horizontal frame.

Abstract: An aircraft operable to transition between thrust-borne lift in a VTOL orientation and wing-borne lift in a forward flight orientation. The aircraft has a blended wing body and includes first and second engines, a binary lift fan system, first and second forced air bypass systems and first and second exhaust systems. The engines have turboshaft and turbofan modes. The lift fan system includes ducted fans in a tandem longitudinal orientation. In the VTOL orientation of the aircraft, the engines are in the turboshaft mode coupled to the lift fan system such that the engines provide rotational energy to the ducted fans generating the thrust-borne lift. In the forward flight orientation of the aircraft, the engines are in the turbofan mode coupled to the forced air bypass systems such that the bypass air combines with the engine exhaust in the exhaust systems to provide forward thrust generating the wing-borne lift.

Abstract: A tiltrotor aircraft having a propulsion configuration that divorces the engine core power from the thrust fan, using a combined gearbox with a plurality of clutches to couple and decouple one or more rotor systems and one or more thrust fans. The aircraft can be operable for vertical takeoff and landing (VTOL) in a helicopter mode, forward flight in a proprotor mode, and high-speed forward flight in an airplane (jet) mode. The propulsion configuration provides shaft horsepower (SHP) to rotors for VTOL flight, while also providing SHP to the thrust fan for high speed flight. Allowing the rotor and the thrust fan to be clutched on and off, sequentially, enables transition from rotor-borne VTOL flight to wing-borne thrust fan flight, and back.

Abstract: Piloting assistance from a remote location is provided to a pilot of a flight vehicle. A server selects captured images. The captured images include flight vehicle viewpoint images that were captured by an image capturing function of the flight vehicle, or pilot viewpoint images that were captured by an image capturing apparatus and show the flight of the flight vehicle. The server provides selected captured images to an assister terminal with priority. The server determines the display with priority based on information related to the flight of the flight vehicle. For example, the server determines the captured images that are to be displayed with priority based on a state during the flight of the flight vehicle. States include, for example, the altitude, speed, orientation, battery amount, and motor rotation speeds of the flight vehicle, as well as the distance between the flight vehicle and a work object.