Abstract: A track for traction of a vehicle (e.g., a snowmobile, a snow bike, an all-terrain vehicle (ATV), etc.), in which the track may have features to enhance its traction, floatation, and/or other aspects of its performance, including to be lightweight, facilitate turning, enhance acceleration, reduce noise, adapt to different ground conditions, and/or provide other benefits.

Abstract: A two wheeled robot with a pair of motorized wheels mounted on each end of a body and a rearwardly extending tail. The body comprising a chassis with sides and exterior side surfaces and providing an accessory mounting interface. The interface having a matrixical arrangement of threaded holes and one or more landings, the landings having an outwardly facing planar landing surface with hole openings at the landing surface. An accessory with a robot mounting interface cooperates with the chassis at the accessory mounting interface such that prior to fastening the accessory has a single degree of freedom of movement. Screws extend through portions of the accessory into select ones of the threaded holes of the matrixical arrangement.

Abstract: Brackets for mounting auxiliary suspension systems, such as lift axle systems, to vehicles are disclosed herein. For example, brackets are disclosed for attaching lift axle hanger brackets and lift axle load springs to corresponding frame members. In some embodiments, the frame brackets can include physical features (e.g., a series of graduated steps in an edge portion thereof) to facilitate visual alignment of the lift axle with the vehicle frame members during installation. In other embodiments, the frame brackets can be two-piece brackets that enable the load springs to be removed and replaced without having to detach the frame bracket from the frame rail.

Abstract: The present disclosure provides a vehicle body transfer system using a transfer unit. The system may include a base configured to move along a base rail; a moving unit comprising a supporting part that is configured to support a vehicle body, wherein the moving unit is configured to move the supporting part in a predetermined direction and the moving part is disposed on the base; and a tool unit disposed outside the base rail and selectively engaged to the moving unit, wherein the tool unit is configured to provide a driving torque such that the moving unit controls a position of the supporting part.

Abstract: Cycling saddles have an elongated front portion, a seat portion, a pair of individual side indentations, and optionally a longitudinal depression. The optional longitudinal depression is defined in the top surface from the elongated front portion to a rear slope of the seat portion. The individual side indentations are defined in the top surface and laterally offset within the seat portion on opposite sides of the seat portion. The combination of the seat portion, the pair of individual side indentations, and the optional longitudinal depression alleviates various pressure points on the pelvic anatomy of an operator positioned or seated on the cycling saddle, particularly with respect to ischial tuberosities and various neurovasculature structures. Additional benefits may be realized if the seat portion is concave, such that a top surface of the cycling saddle within the seat portion is depressed relative to the elongated front portion and the rearward end.

Abstract: A pannier mount assembly for attachment to a motorcycle frame comprises a first member attachable to the frame, the first member comprising a first pannier fixture point. The pannier mount assembly also comprises a second member comprising an elongate arm pivotably attached to the first member and comprising a second pannier fixture point. The second member has a free end. The second member is configured to pivot from a stored position where the free end is substantially adjacent to the first member to a deployed position where the free end is rotated away from the first member thereby increasing the separation between the first and second pannier fixture points.

Abstract: A luggage container for a motor vehicle, in particular a motorcycle or a vehicle similar to a motorcycle is provided. The luggage container includes a first container part which defines a storage volume for stowing luggage and has a container opening for loading and unloading the storage volume. The luggage container also includes a second container part for optionally closing the luggage container. The first container part has a net assembly in an edge region of the container opening, having a retaining net for at least partially closing the container opening. The net assembly is configured to permit adjustment of the retaining net between at least two positions, in order to vary a portion of the container opening closed by the retaining net.

Abstract: A saddle-type vehicle is equipped with a rearview mirror. The rearview mirror includes a stay extending from a vehicle body outward in a vehicle width direction, and a housing connected to an extending end portion of the stay and extending outward in the vehicle width direction, the housing including a mirror body. The housing further includes an upper wall and a lower wall which are arranged at positions overlapping each other in the vertical direction of the vehicle body. The upper wall has an upper outer surface portion whose length in a front-rear direction is shorter than the length of a lower outer surface portion of the lower wall in the front-rear direction, as viewed in a cross-sectional view perpendicular to the vehicle width direction.

Abstract: A resin-made tank includes a mouthpiece capable of covering an inner peripheral surface, a distal end surface and an outer peripheral surface of the cylindrical filling portion, wherein a fuel tank body 35 has a mouthpiece fixing portion to which a mouthpiece fixing jig is fixed, the mouthpiece has an annular skirt portion which covers the outer peripheral surface, the skirt portion has a fitting portion which is fitted on an upper portion of the outer peripheral surface on an upper portion of the skirt portion, and has a large diameter portion having a larger diameter than the fitting portion on a lower portion of the skirt portion, the mouthpiece has a stay portion extending radially outward of the mouthpiece from the large diameter portion, and a fixing hole through which the mouthpiece fixing jig passes is provided in the stay portion.

Abstract: A resin-made fuel tank includes: a resin-made fuel tank body provided by bonding an upper half body and a lower half body to each other; and a barrier sheet layer provided on an inner surface of the fuel tank body and provided for reducing permeation of fuel from the fuel tank body, wherein an edge of the barrier sheet layer is disposed in a vicinity of an upper bonding surface and a lower bonding surface where the upper half body and the lower half body are bonded to each other in a mating manner, the edge has a bent portion which bends toward an outside of the fuel tank body, and the bent portion is embedded in the fuel tank body at a position spaced apart from the upper bonding surface and the lower bonding surface.

Abstract: A motorcycle frame support bracket for a frame of a motorcycle. The motorcycle frame support bracket includes a plate having a first portion, a second portion, and an angled portion, wherein the angled portion extends upwardly from the second portion, such that the first portion is positioned at an offset above the second portion. The first portion includes a pair of apertures disposed on opposing ends thereof, wherein each aperture receives a fastener therethrough. The second portion includes a protrusion extending perpendicularly away from the plate in a same direction as the angled portion, wherein the protrusion includes a channel extending therethrough, wherein the channel receives a fastener. Each of the first portion and the second portion of the plate removably secure to a frame of a motorcycle, such that a surface of each of the first portion and the second portion rests flush against a surface of the frame.

Abstract: A bicycle frame attachable kneeling pad is described. The bicycle frame attachable kneeling pad is adaptable to a standard bicycle to provide new coaster usage where a user can propel forward with an active push leg, like a scooter, while resting a passive or compromised leg in the kneeling pad. The bicycle frame attachable kneeling pad includes a kneeling pad for supporting a user's passive or compromised leg while coasting on the bicycle, and a frame assembly for facilitating the assembly of the kneeling pad to the bicycle frame. The frame assembly may further include one or more crank arms that are attachable to a bottom bracket of the bicycle. The crank arms may then assemble with the frame member to ultimately attach the kneeling pad to the bicycle frame to provide the new coaster usage.

Abstract: A bicycle fork includes a fork shaft configured to be rotatably borne by headset bearings in a head tube of a bicycle frame so as to rotate about a steering axis. The fork shaft includes a cylindrical fork shaft segment that is disposed eccentrically with respect to the steering axis. The cylindrical fork shaft segment is a right circular cylinder having a hollow interior, a cylindrical inner surface and a central longitudinal axis that lies within a symmetry plane of the bicycle frame and extends parallel to the steering axis. The central longitudinal axis of the cylindrical fork shaft segment is spaced apart from the steering axis in a direction of eccentricity that points in an opposite direction with respect to a forward direction of travel of the bicycle.

Abstract: System and method for fixing detachable handlebars to a mount. Specifically, the mount is independent the handlebars; the mount may include structure, corresponding to the handlebars that comprises a coupling that allows for the mount to quickly and simply engage and disengage the handlebars while also maintaining the coupling free from sliding, rotating, disengaging, or otherwise moving while mounted. In the present arrangement the mount includes a front plate, corresponding receiver shaft assembly including the aforementioned structure, and a mount bracket. The mount bracket may contain structure allowing for the mount to be coupled to any surface that can support the weight of the mount and handlebars. The assembly disclosed in accordance with the present invention may generally exploit several compression mechanisms to bias a series of keys into a locking position to secure the handlebars attachment to the mount. Other embodiments are also included.

Abstract: System and method for detachable handlebars. Specifically, the handlebars are independent the bicycle; the handlebar locking shaft may include a tapered first end corresponding to a stem portion configured to receive this tapered end. This, in conjunction with a non-clamping coupling allows a user quickly and simply engage and disengage the handlebars while also preserving a strong connection without the handlebar sliding, rotating, disengaging, or otherwise moving the user in on the bicycle. The embodiment disclosed in accordance with the present invention may generally exploit a key located on the locking shaft and a slot system to axially bias the handlebars into a locked and unlocked positions. This system and method generally avoid the use of compression mechanisms in favor of the tapered first end of the locking shaft of the handlebar portion, where such mechanisms would generally be necessary for the security and easy movement of the handlebars.

Abstract: A bicycle control device comprises a bracket member including a first end portion and a second end portion with a saddle portion provided in between the first end portion and the second end portion for gripping. The second end portion has a pair of spaced apart walls with opposed surfaces. The control device further comprises a lever pivotally provided around a pivot axis extending between the opposed surfaces. The lever includes a protruding portion extending in an axial direction of the pivot axis to an outermost point that is at least 23.2 mm offset from a reference plane parallel to a bicycle center plane and defined at a midpoint between the opposed surfaces, as viewed from a parallel direction parallel to the reference plane.

Abstract: A suspension component for a bicycle is provided. The suspension component includes a first tube having a first end and a second tube having a second end, the first tube and the second tube configured in a telescopic arrangement having the first end as a first distal end of the telescopic arrangement and the second end forming a second distal end of the telescopic arrangement, the telescopic arrangement having an interior space bounded by inner walls of the first tube and the second tube. The suspension component also includes a fluid damper disposed in the interior space, the fluid damper having a plurality of operational states configured to dampen or resist movement of the first tube relative to the second tube. Characteristics of the suspension component are controllable and/or the suspension component is configured to operate in different states.

Abstract: A high performance motorcycle having a frame, engine suspension, and rear wheel drive system that enables rider foot positioning close to the longitudinal centerline of the motorcycle and an overall aerodynamic profile. The engine suspension, centering and damping system allows for lateral movement while damping vibration and unwanted oscillations. The rear wheel drive includes a driven pulley axially disposed on a rear wheel axle, a drive pulley configured to receive motive output from the motorcycle engine, an idler pulley disposed above a line between the axes of rotation of the drive pulley and the rear wheel axle, and a belt or chain disposed around and operatively connecting the drive pulley, the driven pulley and the idler pulley, wherein the idler pulley and the drive pulley configured so as to provide substantially constant tension to a belt or chain over the range of travel of the rear suspension.

Abstract: A straddle vehicle comprises an axle; an external member which is externally fittable to the axle; and a fastening member fastened to the axle to prevent disengagement of the external member. The axle includes an outer tube member to which the external member is externally fittable, and an inner shaft member which is inserted into the outer tube member and is longer in an axial direction of the axle than the outer tube member. The inner shaft member includes a shaft part which is internally fittable to the outer tube member, a male thread part formed in an outer peripheral surface of a first end portion of the shaft part, and a retaining part protruding radially outward from a second end portion of the shaft part, the retaining part being configured to retain an axial tension of the inner shaft member generated by fastening the fastening member to the axle.

Abstract: A motor driving control apparatus for a motor-assisted vehicle such as a motor-assisted bicycle includes: an inverter configured to drive a motor; and a controller configured to control the inverter to start regeneration after lapse of a first time period since a second predetermined time period elapsed or gradually increase a regeneration amount, when a state that an acceleration of a vehicle on which the motor is embodied is negative and equal to or less than a first predetermined value continues for the second predetermined time period.

Abstract: A bicycle rear sprocket assembly is configured to be mounted to a sprocket support body of a bicycle rear hub assembly. The bicycle rear sprocket assembly comprises a plurality of bicycle sprockets. The plurality of bicycle sprockets comprises a first sprocket and a second sprocket. The first sprocket includes a first opening having a first minimum diameter that is smaller than a minimum outer diameter of the sprocket support body of the bicycle rear hub assembly. The second sprocket includes a second opening and at least ten internal spline teeth. The second opening has a second minimum diameter that is equal to or larger than the minimum outer diameter of the sprocket support body of the bicycle rear hub assembly. The at least ten internal spline teeth are configured to engage with the sprocket support body of the bicycle rear hub assembly.

Abstract: A bicycle rear hub assembly comprises a hub axle, a hub body, and a sprocket support body. The hub axle includes an axle through-bore that has a minimum inner diameter equal to or larger than 13 mm. The hub body is rotatably mounted on the hub axle about a rotational center axis of the bicycle rear hub assembly. The sprocket support body is rotatably mounted on the hub axle about the rotational center axis.

Abstract: A sprocket support body is rotatably mounted on a hub axle of a bicycle rear hub assembly. The sprocket support body comprises at least ten external spline teeth configured to engage with a bicycle rear sprocket assembly. Each of the at least ten external spline teeth has an external-spline driving surface and an external-spline non-driving surface.

Abstract: A snowmobile has a suspension with a spring. The spring has a central loop portion and an elastomeric bushing disposed in the central loop portion. A limiting cable is disposed adjacent to the spring. The snowmobile also has a rear snowmobile suspension with a torsion link structure. A control arm is pivotally connected to a first end of the torsion link structure. A wheel assembly is pivotally connected to a second end of the torsion link structure. A first slide rail is attached to the wheel assembly with a sliding mechanism. A track around the rear snowmobile suspension has a paddle oriented substantially perpendicular to the track. A first gripping element is disposed on the face of the paddle.

Abstract: An adjustable shade system for a boat is disclosed. The shade system includes at least one canvas and at least one pole, for example, an outrigger pole. The at least one canvas is secured to the at least one pole using at least one attachment point. In addition, the shade system includes at least one pivoting connection. The pivoting connection is coupled to a mounting surface and to the first end of the at least one pole. The pivoting connection is adapted to selectively cause the at least one pole to rotate in at least one rotational direction relative to the mounting surface.

Abstract: An anchor system for watercraft includes: a hub including a receiving contour; a skirt removably securable to the hub along a receiving contour of the hub, wherein: the skirt at least partially surrounds an inner recess and includes a gap such that such that the skirt is not circumferentially continuous; and the skirt is configurable in an open position and a closed position, wherein when the skirt is in the open position the gap is wider than when the skirt is in the closed position. The inner recess of the skirt has a radius that is larger than a complementary radius of the receiving contour of the hub when the skirt is in the open position. When in the closed position, the radiuses are substantially the same, such that the skirt is secured to the hub when the skirt is in the closed position.

Abstract: An anchor system for a floating object that includes an eyelet mounted on a rotating swivel arm. The eyelet is adapted to connect to a rope or cable that extends downward from the floating object. The swivel arm is adapted to rotate freely 360 degrees around a rigid support pole. The lower end of the support pole includes at least one support flange that is imbedded into a concrete block during manufacturing. The swivel arm includes a horizontal flange with a center bore adapted to receive the support pole. The support pole includes a lower stop surface and an upper stop surface. When assembled, the swivel arm is mounted on the support pole so that the horizontal flange is positioned between the lower and upper stop surfaces. Disposed around the support pole and between the horizontal flange and the upper and lower stop surfaces are upper and lower nylon washers.

Abstract: An improved floating object attachment system for attaching one end of a rope or cable attached at its opposite end to a submerged anchor. The attachment system includes a rigid support pole attached to a mounting plate attached to the bottom surface of a floating object. Attached to the support pole is a swivel arm adapted to rotate freely 360 degrees around the support pole. A plurality of radially aligned gussets hold the support arm in a perpendicularly aligned position on the mounting plate. The swivel arm includes a horizontal flange with a center bore adapted to receive the support pole and a lateral, downward extending diagonal arm with a grommet hole that connects to the rope or cable. The support pole includes a lower stop surface and an upper stop surface that create a rotation section on the support pole. Disposed around the support pole and between the horizontal flange and the upper and lower stop surfaces are nylon washers.

Abstract: A pool toy consists of a flexible, buoyant pool noodle with a drink holder mounted to one end. A user sits on or astride the noodle in a well-known manner to float relaxingly in a generally upright posture in a pool, lake, or other body of water. The weight of the user on the flexible noodle causes the noodle to bend into a substantially U-shaped configuration, in which at least one end of the pool noodle projects above the surface of the water. The drink holder is mounted to an end of the pool noodle that is located above the surface of the water, providing a handy location to hold a beverage container.

Abstract: A device for providing user-support on a stand-up paddle board (SUP) includes a support post having a user-support pad mounted to its upper end portion and a horizontal rotation axle around which the support post is rotatable to a position for use, and to a stored position. The device is configured to be mounted to the SUP with the horizontal rotation axle positioned transversely to a length of the SUP. The device includes a spring component returnably connected to the support post via the horizontal rotation axle, configured to impose a return force on the support post in the stored position.

Abstract: A suspension system for a water craft, the water craft including a chassis which is at least partially suspended above or relative to at least a first hull and a second hull. The suspension system includes a first hull locating arrangement for at least partially constraining the first hull in a lateral, a yaw, a roll and a longitudinal direction relative to the chassis, the first hull locating arrangement comprising a first, a second, a third and a fourth link arranged to directly or indirectly connect between the hull and the chassis. The first, second and third links each extend in at least a lateral direction relative to the chassis and contribute to a lateral constraint on the first hull relative to the chassis. The second link is longitudinally spaced from the first link relative to the chassis to contribute to a hull yaw constraint on the first hull relative to the chassis.

Abstract: The invention relates to an integrated illumination and signalling system for navigation purposes integrating a front illumination assembly for the prow, a rear sternlight assembly, an upper anchor light assembly, an illumination assembly at the base of the transparent mast, a signalling assembly also arranged at the rear for illuminating the stern of the vessel, starboard and port side signalling light assemblies pre-arranged in a central longitudinal portion of the vessel, from the centre to the rear, preferably on the top frame or a cover of the vessel.

Abstract: A windshield includes a framework with a bottom trim and a top trim, a windshield panel secured to the framework, and a speaker system secured to the framework adjacent the windshield panel between the bottom trim and the top trim. The windshield integrates speakers just above the deck and closer to passenger head level. The design provides a much more balanced listening experience in a visually pleasing package.

Abstract: An underwater positioning system for scuba divers includes a base station having an underwater transmitter and receiver for sending and receiving underwater signals. The system also includes at least one diver unit having a scuba-style mask with a plurality of receivers for detecting the transmitted base signal. A diver display is positioned within the inside facing portion of the mask for indicating the direction of the base station. The diver unit also includes a transmitter for sending an emergency SOS signal to the base station and other diver units.

Abstract: In one aspect, an embodiment of the invention provides a back pack cinch for a strap securing a breathing tank to a buoyancy compensation device worn by a diver. The back pack cinch includes a cinch body. A cover is rotatably mounted to the cinch body. The cover has an open position and a closed position. The cover in the closed position is configured to tension a strap. A tab is rotatably mounted to the cinch body. The tab has an open position and a closed position. In the closed position, a portion of the strap is pressed against the serrated bearing surface by the tab to hold the portion of the strap in a fixed position.

Abstract: Various embodiments may include a drone for triggering sea mines by means of an external magnetic field. For example a drone may include: a drive having an electric motor; the electric motor comprising a stator and a rotor mounted on a shaft. The stator includes a stator winding arranged on a first carrier. The rotor includes a second carrier and a magnetic or electromagnetic element arranged on the second carrier. The element may be configured to magnetically interact with the stator winding to form a superordinate magnetic field during operation of the electric motor. During operation, the electric motor forms an external magnetic field outside of the electric motor with a magnetic flux density of at least 0.5 mT.

Abstract: An outboard engine for propelling a boat includes a propulsion unit with an electric motor, a propeller driven by means of the electric motor, a control unit for controlling the power of the electric motor, and a water detection means. The water detection means is adapted to detect whether the propeller is submersed in water. The power of the electric motor can be influenced via the control unit based on the detection.

Abstract: Embodiments of a boat heat exchanger system of the present invention employable to cool a user device via heat transfer generally include an inlet pipe, an outlet pipe, and an inline pump, wherein the inlet pipe is fluidly connectable to an external aqueous fluid source. In one embodiment, a closed-looped system utilizing a heat exchange component of a contained external aqueous fluid source is provided. In another aspect, embodiments of a boat heat exchanger system of the present invention contain a close-looped system and generally include an inlet pipe, an outlet pipe, an inline pump, and an externally disposed heat exchanger, wherein an aqueous fluid is recirculated through the heat exchanger system. Methods of cooling user devices on a boat using embodiments of a boat heat exchanger system are provided.

Abstract: A maritime drift control system comprising a vessel movement detection unit, for detecting an actual vessel speed and direction, and a vessel movement control unit with a drift controller for controlling operation of at least one propulsion device of a vessel. The maritime drift control system comprises a drift error generator for generating drift error signals depending on a predetermined speed limit and the actual vessel speed. The drift error generator is connected to the drift controller to transmit the drift error signals to the drift controller. The drift controller uses the drift error signals to compute and transmit propulsion command signals to the at least one propulsion device in order to reduce speed and alter the direction of the vessel to target values. The invention comprises further a maritime vessel with a corresponding maritime drift control system.

Abstract: A ship steering device including: an engine; an auto-drive unit that exerts propulsive power on a ship hull by power from the engine; detection means for detecting a current position and an orientation of the ship hull; a ship steering control device that controls an output of the engine and propulsive power of the auto-drive unit; and a calibration switch (8) that starts calibration of a ship. When the ship steering control device detects that the calibration switch is turned on, the ship steering control device controls the engine and the auto-drive unit to cause the ship hull to move in a predetermined direction or to turn, and if a difference between, for instance, a traveling amount and speed in the predetermined direction and an intended traveling amount and speed exceeds a predetermined value, the ship steering control device corrects control values of the engine and the auto-drive unit.

Abstract: A diamond quadcopter is described with tilting propulsion modules attached to a diamond faceted fuselage providing vertical thrust for Vertical Takeoff and Landing (VTOL) and transitioning to horizontal thrust for flight. The diamond faceted fuselage generates lift as a low aspect ratio lifting body. The diamond-like facet geometry enables propulsor placement to minimize interaction between the slipstream and fuselage in all modes of operation. A retractable landing gear with powered wheels allows Vertical/Short Takeoff and Landing (V/STOL) including emergency landings, and maneuverability on the ground. Landed and with gear retracted the bottom fuselage facet is close to ground level allowing an aft facet ramp for walk-on or roll-on access of passengers and payload. With the landing gear extended the vehicle can maneuver over cargo using the wheeled hub motors and then retract for insertion of cargo through a fuselage bottom door.

Abstract: A cargo hold comprises at least one luggage holder having at least one luggage compartment, wherein, when the hatch is in the closed state, the luggage holder is arranged in the cargo hold, and wherein, when the hatch is in the opened state, the luggage holder can be brought out of the cargo hold and can be introduced therein again by means of a guide mechanism in such a manner that the luggage holder, when it is brought out of the cargo hold, is arranged substantially radially to the substantially elliptical cross section of the fuselage.

Abstract: A multirotor aircraft is provided. The multirotor aircraft comprises a body comprising a main body and a camera assembly with a camera coupled to the main body; a frame connected to the body, comprising a multirotor propulsion system; and a drive system coupled with the body and the frame, for driving the body to rotate against the frame. With the multirotor aircraft, full unobstructed 360° yaw field of view of the camera in the upper or lower hemisphere can be obtained and the camera is in a safe position at takeoff and landing.

Abstract: An aerial vehicle includes a fuselage situated at the center and a main wing body having a pair of half-wings extending on transversely opposite sides of the fuselage. Each half-wing includes an orientable horizontal surface or plane, which acts as an aerodynamic control, and a fixed winglet.

Abstract: Provided is a method for forming a co-cured composite article. The method includes: providing a bag carrier; providing a vacuum bag, wherein the vacuum bag at least partially surrounds the bag carrier; providing an outer skin, wherein the outer skin at least partially surrounds the vacuum bag; forming a space between the bag carrier and the the outer skin; and providing a filler between the outer skin and the bag carrier.

Abstract: A leading edge structure for providing an aerodynamic surface of an aircraft is disclosed having a skin structure, the skin structure providing an outer aerodynamic surface and an inner surface, both surfaces extending in a chordwise and spanwise direction of the structure, and a plurality of structural members, each structural member being connected to the inner surface of the skin structure and extending in the chordwise direction along the inner surface, wherein the structural members are integrally formed with the inner surface of the skin structure. The disclosure is also related to an aircraft wing, aircraft tailplane, wing box structure, wing or wing structure and an aircraft including the leading edge structure.

Abstract: A fairing door assembly for use with an aircraft includes a first door pivotable between a first door open position and a first door closed position. The first door open position is associated with a first flap position of a flap of the aircraft, and the first door closed position is associated with a second flap position of the flap. The fairing door assembly also includes a second door pivotally coupled to the first door. The second door is pivotable between a second door open position and a second door closed position. The second door open position is associated with the first flap position and the second door closed position is associated with a third flap position that is different than the first flap position.

Abstract: A fluid-driven device is provided according to the present disclosure. The fluid-driven device includes: a transmission portion, which is driven to rotate in an axial direction of the transmission portion; blade portions, which are connected to the transmission portion and rotate in the axial direction of the transmission portion to generate a fluid power; and a pitch portion, which is connected to the blade portions and configured to change a frontal area of the blade portion in its rotation direction in the axial direction of the transmission portion so that the frontal area of the blade portion is switched between a maximum frontal area and a minimum frontal area. With the fluid-driven device according to the present disclosure, a frontal area of the blade portion is regulated to be maintained at a maximum frontal area in a desired motion direction for interaction with fluid, and is switched to a minimum frontal area in an undesired motion direction to avoid interaction with the fluid as much as possible.

Abstract: The present disclosure describes a propeller control unit for controlling the blade pitch of a propeller. The unit includes an electrohydraulic servo valve (“EHSV”) and is connected to a propeller actuator that adjusts the blade pitch of a propeller. The EHSV operates to allow pressurized fluid to flow from a pressurized fluid source to the actuator to adjust the blade pitch of the propeller in a flight pitch range and a ground pitch range, to allow pressurized fluid to flow from the source to the actuator to adjust the blade pitch of the propeller in a flight pitch range but not a ground pitch range, and to block the flow of pressurized fluid from the source to the actuator and drain pressurized fluid from the actuator to prevent adjustment of the blade pitch of the propeller in the flight pitch range or the ground pitch range.

Abstract: Example high-fowler flap actuation apparatus and related methods are disclosed. An example apparatus includes a control surface operatively coupled to a wing of an aircraft via a first support arm and a drive arm, the drive arm linearly extendible from a retracted position to a deployed position, the deployed position including the control surface extended away from the wing at a first angle with respect to the wing.