Abstract: An apparatus includes a bicycle frame defining a bore, and a bicycle seat assembly including a post received in the bore. An indicating unit is configured to indicate a first position of the post along the bore for a first user and a second position of the post along the bore for a second user. An identification unit is configured to identify the first user and the second user. A computing device includes a processor and a memory, the memory storing instruction such that the processor is programmed to instruct the indicating unit to indicate the first position when the identification unit identifies the first user and to instruct the indicating unit to indicate the second position when the identification unit identifies the second user.

Abstract: A handguard for a handle bar may include a body extending from a first contact point to a second contact point, a flexible member provided on the body, and a shock-absorbing member provided on the body. The flexible member and shock-absorbing member may be located at opposite ends of the body. The shock-absorbing member may include polyurethane. The shock-absorbing member may include a spring. The flexible member may be provided at the first contact point of the body and may include a rubber collar. The flexible member may be formed integral with the body and may include metal. The flexible member may be formed integral with the body and may include plastic. The flexible member may be integral to the handguard. The shock-absorbing member may be provided within the body at the second contact point of the body.

Abstract: An apparatus includes a first component having with a first coupling surface and a first axial aperture therethrough. The first component has an axial recess in the first coupling surface. The apparatus further includes a second component having a second coupling surface and a second axial aperture therethrough, and the second component has an axial protrusion extending from the second coupling surface. The axial recess of the first component and the axial protrusion of the second component selectively engage to radially lock the first component relative to the second component and align the first and second apertures upon engagement with each other. The first and second apertures selectively receive a bicycle wheel axle.

Abstract: A suspension unit for a front fork of a vehicle includes an annular tube. The first tube defines a compression chamber and a damping chamber. A damper includes a first valve allowing gas to variably flow from the compression chamber to the damping chamber and a second valve allowing gas to flow from the damping chamber to the compression chamber. An external adjuster allows a rider to adjust the first valve to improve ride conditions.

Abstract: A hidden hydraulic structure of a bike disc brake is integrally disposed with a bike body tube. The hidden hydraulic structure of the bike disc brake includes a base, a piston and a linking member. The base includes an oil circuit. The piston is located in the base for controlling a pressure of the oil circuit. The piston is actuated by the linking member. Wherein a shape of the base is corresponded to a shape of the bike body tube, and the base is connected with the bike body tube to form a portion of the bike body tube, thereby increasing strength of the bike body tube.

Abstract: In a method for detecting a maintenance situation on a two-wheeled vehicle having a motor provided in order to assist forward motion of the two-wheeled vehicle at least at times, a maintenance situation is detected by sensing the position of the two-wheeled vehicle by way of a first sensor variable. Control is then applied to the motor either as a reduction in the applied drive power output, e.g. in the form of the motor speed or torque, or as a complete shutoff or immobilization of the motor.

Abstract: A bicycle derailleur includes a fixing member, a selected chain guide unit and a motor unit. The fixing member is configured to be fixed to a bicycle frame. The selected chain guide unit has a chain guide for guiding a bicycle chain and a support mechanism moveably supporting the chain guide relative to the fixing member. The selected chain guide unit is one of a plurality of different configurations of chain guide units. The motor unit is configured to be selectively attached to the selected chain guide unit to move the chain guide. The motor unit is configured to be mounted to each of the plurality of configurations of chain guide units.

Abstract: A motor actuated derailleur for a bicycle gearshift that has a support body adapted for mounting on a bicycle frame. A chain guide moves a bicycle chain between different engaged positions on respective gear wheels. A pair of connecting rods connects said chain guide to said support body with a first connecting rod of said pair of connecting rods being rotatable about a first rotation axis (X) at a first end thereof. A motor housed in said support body has an output shaft able to rotate about a second rotation axis. A transmission between said motor and said first connecting rod is housed in an inner chamber of said support body that comprises at least one adjustable end stop element that prevents the rotation of the output shaft beyond a predetermined rotation angle, in at least one of the two directions of rotation of the output shaft.

Abstract: A bicycle motor control system is provided. The bicycle motor control system may be configured to control a drive motor that configured to output a driving force. The controller may be configured to receive a first user input and increase the driving force based on the first user input so as to set a boost ratio, and automatically reduce the driving force based on a factor other than the first user input.

Abstract: Various configurations of improved wake-modifying devices for a power boat are provided herein. All such configurations provide a water channel and (optional) wedge for capturing and redirecting significantly more of the water flowing past the transom of the boat than conventional trim tabs consisting primarily of a flat plate. This increases the upward force applied to the deployed wake-modifying device and raises the stern of the boat on the non-surf side to list the boat to the surf side, producing a larger wake on the surf side. Some configurations provide a convergent water channel to produce longer, smoother wakes on the surf side of the boat. Other configurations provide a divergent water channel, which produces a comparatively shorter, taller wake on the surf side of the boat.

Abstract: A hydrofoil having an integrated yoke-bridge to preclude expansion of the channel defined by the yoke when the hydrofoil is secured to the cavitation plate. The single piece hydrofoil is secured to the cavitation by lateral screws passing through the hydrofoil and engaging the side of the cavitation plate. Additionally, one or two holes are optionally drilled through the single piece hydrofoil and through the cavitation plate followed by insertion of bolts passing through the hydrofoil and the cavitation plate.

Abstract: A system for providing an air lubricating layer between a substantially flat bottom (3) of a vessel (1) and the water flowing under the bottom as the vessel is moving through the water, whereby the system includes sidewalls (5,5?) and a top wall (4) defining a cavity (6) with an opening (13) situated in an interface plane that is transversal to the sidewalls (5,5?), at the level of the flat bottom (3), the opening having a front end (9) and a rear end (15) seen in the length direction of the cavity, an air inlet (10) spaced from the opening for introducing air into the cavity, whereby the length of the opening (13) of the cavity (6) is between 2 and 10 m and the distance (H) of the top wall (4) from the interface plane is between 0.2 m and 0.5 m.

Abstract: A modular watercraft is disclosed which includes plural connectable modules and which can be broken down for ease of handling, transport and storage. The watercraft includes novel means for connecting separate modules. The connectable modules may be storable within a single one of the modules.

Abstract: A single point mooring includes a yoke-shaped articulated arm assembly, which is affixed to the seabed by a fixed foundation or mooring base assembly, and a mooring support structure, which is retrofitted to a vessel. The articulated arm is connected to the base by a triaxial articulation joint for accommodating yaw, pitch and roll. To moor the vessel, the arm is connected to the mooring support structure with weighted pendants on port and starboard sides. The pendants are suspended at an adjustable elevation with respect to the mooring support structure, thus allowing the mooring system to be used at varying water depths. A combined connection bracket hosts both pendant linkages and umbilicals or hoses for speeding the process of connecting and disconnecting a vessel from the mooring system. A removable anchor, such as a suction pile, fixes the mooring system to the seabed, allows the system to be easily redeployed to another location.

Abstract: A traction system (11; 60) for operating lines (18), in particular mooring lines and/or riser lines, of a vessel (1), includes at least two work stations (26) distributed along at least two sides of the vessel (1) and engaged by respective operating lines (18). The traction system includes a main traction device (14; 15, 17; 15A, 17) and a transmission device (36) having a duty line (28) connected to the main traction device and at least one guide member (24) for selectively routing the duty line (18) to each work station (26) for attachment to a respective operating line (18). A line storing space (22; 42, 44) is provided for storing parts of the duty line and/or hauled in moorings lines; the main traction device, the transmission device and the line storing space are placed together at or near a side of the floating production unit.

Abstract: A rope system adapted to be connected between first and second structures comprises a rope recoil system comprising first and second rope recoil assemblies. The first rope recoil assembly defines a first length and a first predetermined rope recoil maximum limit at which the first rope recoil assembly fails when under tension. The second rope recoil assembly defines a second length, where the second length is longer than the first length. The rope recoil assembly is arranged between the first and second structures such that the rope recoil system is in a first configuration. When at least one of the first and second structures moves away from another of the first and second structures, the first rope recoil assembly fails and the rope recoil system reconfigures into a second configuration.

Abstract: The invention shows improved operational conditions. It comprises a floating structure with a single floating central body (1), provided with an elongated configuration according to a longitudinal direction, wherein the lower portion of the central body (1) is intended to be submerged. It additionally comprises: a base (3) located in the upper portion of the central body (1) to support at least one wind turbine (4); and at least four legs (2) located in the lower portion of the central body (1) and provided with: a) a first end, by which they are integrally attached to the central body (1); b) a second end, opposite to the first end, and more distant from the central body (1); and c) at least a porch (6) located in the second end of each leg (2), said porch (6) comprising a first drilling (12) in longitudinal direction to anchor the floating platform to the sea bed (5).

Abstract: A boat hook anchor is provided. The boat hook anchor may include a metal tubing, such as electrical conduit metallic tubing. An insulating foam may be disposed within the metal tubing. The present invention may further include an anchor shackle attached to the second end of the metal tubing. The anchor shackle enables attachment of the anchor system to the boat. The anchor shackle may include a hoop securable to a rope attached to the boat.

Abstract: A variable drag area tow system including a tow cable, and a variable drag area device having a variable projected area, the variable drag area device is configured to have a smaller projected area as the velocity of the variable drag area device with respect to a fluid increases. A method of maintaining tension on a tow cable, the method including deploying at a first velocity a variable drag area device having a variable projected area, increasing the first velocity to a second velocity, and decreasing the projected area of the variable drag area device as the first velocity is increased to the second velocity.

Abstract: A tow winch powered by a DC motor and a rechargeable battery. A tow rope is wound by the winch spool, the tow rope having a tow handle with one or more wireless throttle control members to start, stop and adjust the speed and acceleration of the retrieval operation. A marker device is incorporated into or attached to the tow rope and a sensor switch is provided on the base, whereby when the marker device is detected by the sensor switch the winch is disengaged. The base and operational components are sized and structured such that straps may be connected to the base and the tow winch carried like a backpack.

Abstract: The invention generally relates to devices for stabilizing floating structures and systems and methods utilizing such stabilization devices. Some embodiments of the stabilization device include a fabric material having a collapsed configuration and an expanded configuration. The expanded configuration of the fabric material may form a column of the fabric material. The column of fabric material may define an internal volume. The front end of the column of fabric material may be closed, and the back end of the column of fabric material may define an opening for receiving water for filling the internal volume. When filled with water, the stabilization device may improve roll stabilization of a floating structure. The floating structure may be a flotation device of an emergency flotation system, boat, or inflatable raft, for example. The emergency flotation system may be used with aircraft, (e.g., helicopters) to provide stabilization when the aircraft is ditched in water.

Abstract: An apparatus for protecting and providing user access to a touch sensitive device underwater, comprising a waterproof casing comprising an inner cavity configured to receive the touch sensitive device, the casing comprising: a first area of the casing for providing user access to the touch sensitive device; a transparent first membrane arranged to cover at least part of the first area of the casing, the inner cavity configured to receive the touch sensitive device so that user interface of the touch sensitive device being arranged adjacent to the membrane of the first area; a pressurized non-conductive fluid arranged to the inner cavity to provide a gap between the user interface of the touch sensitive device and the membrane; a pressure control membrane arranged to cover at least part of a second area of the casing; and a pressure control element operationally connected to the pressure control membrane, configured to flexibly bend the pressure control membrane to change pressure of the pressurized non-conduc

Abstract: A sleeve and collar system for an oar includes a sleeve configured to couple to a shaft portion of the oar. The sleeve includes an outer surface. The system also includes a wear collar configured to couple around the sleeve at each of a plurality of longitudinal positions along the sleeve. The wear collar is configured to bear substantially all direct contact from an oarlock during a rowing stroke of the oar. A radially inner surface of the wear collar is shaped to be complementary to at least a portion of the sleeve outer surface, such that the wear collar inner surface and the sleeve outer surface cooperate to maintain the wear collar in a predetermined orientation about a longitudinal axis of the sleeve at each of the plurality of longitudinal positions.

Abstract: A stand-up type personal watercraft comprises a body including a deck and a hull; a standing deck provided at the deck and located rearward relative to an engine room; a pair of deck fins located on right and left sides of the standing deck, respectively, and protruding upward; a muffler through which an exhaust gas from the engine flows; a first exhaust pipe which guides the exhaust gas from the engine to the muffler; and a second exhaust pipe which guides the exhaust gas outside from the muffler. The muffler is placed below the deck fin located on one side, and accommodated in the hull. The first exhaust pipe extends rearward on the one side from the engine and is connected to the muffler. A portion of the second exhaust pipe extends in a forward and rearward direction inside the deck fin located on the other side.

Abstract: Methods and apparatuses are disclosed for a self-stabilizing ballonet. A bladder or ballonet is provided within an envelope of a balloon. The bladder includes a spheroid body comprising an equator, a top pole, a bottom pole, and an axis crossing through the top pole and the bottom pole. The distance between two poles may be less than the equatorial distance. The bladder is sized and shaped for insertion into an envelope of a balloon and is inflatable to provide altitude control for the balloon.

Abstract: An inflation diffuser including a non-rigid first section having a passageway for the passage of lift gas passing through a fill port positioned on a balloon envelope, a porous and non-rigid second section attached to the non-rigid first section, wherein the porous and non-rigid second section is comprised of a mesh material, wherein the non-rigid first section is less porous than the porous and non-rigid second section, and wherein the porous and non-rigid second section is not in contact with the balloon envelope at the end of an inflation process to direct lift gas towards the center of, and away from, the balloon envelope.

Abstract: A device for protecting a front spar structure of a central casing -of an aircraft wing and at least one item of equipment situated in the wing, comprising: a shielding surface extending in front of the front spar of the central casing, from a surface of an intersection between the wing and the fuselage delimited by the root of the wing, transversely to the surface of intersection, to a first rib of the central casing partially surrounding at least one item of equipment; and means -for fixing the shielding surface to the central casing producing an isostatic link.

Abstract: A slat support and deployment apparatus comprising a master slat support and deployment assembly and a slave slat support and deployment assembly is disclosed. The master and the slave slat support and deployment assembly each include an arm having a free end attachable to the same slat at spaced locations along its length for deployment and retraction of said slat in a direction generally parallel to a wing in response to simultaneous movement of said arms. The master and the slave slat support assemblies each include a coupling for attaching said free end of each arm to a slat and the coupling that couples the free end of the arm of each slat support and deployment assembly to a slat is configured to allow movement of that slat relative to said free end of said arm of each slat support and deployment assembly during deployment and retraction of said slat.

Abstract: Aerial vehicles may be equipped with collapsible lift propellers and thrust propellers. The collapsible lift propellers may include retractable tips that may pivot or rotate from a first orientation substantially co-aligned with a main body of the collapsible lift propellers during ordinary operations and a second orientation substantially transverse to the main body of the collapsible lift propellers when rotation of the collapsible lift propellers is stopped. The collapsible lift propellers may further include biasing elements, e.g., springs for biasing the retractable tips into the second orientation, and mechanical stops for inhibiting the pivoting or rotation of the retractable tips beyond the first orientation.

Abstract: A method and a system for engaging hovering flight for a rotary wing aircraft. A first mode of operation makes it possible, while the longitudinal speed UX of the aircraft is greater than a first threshold speed Vthresh1 to approach a stop position S while maintaining track relative to the ground, the flight setpoints of an autopilot being a ground course angle TKsol, a deceleration rate Ga for the forward speed Va of the aircraft, a flight path angle P, and a heading ?. A second mode of operation makes it possible, when the longitudinal speed UX is less than a second threshold speed Vthresh2, to engage hovering flight at the stop position S while maintaining heading, the flight setpoints being the longitudinal speed UX, a lateral speed VY, a vertical speed WZ, and the heading ?, the speeds UX, VY, and WZ being reduced progressively to zero speed.

Abstract: The invention concerns a device for a adjustable flap adjustably mounted on a main wing surface of an aeroplane wing, in particular, a landing flap, with at least one adjustment unit for purposes of adjustment of the adjustable flap, which has an actuator arranged, or that can be arranged, on the main wing surface, and has a kinematic adjustment mechanism running between the actuator and the adjustable flap, wherein the adjustable flap is mechanically coupled with the actuator via the kinematic adjustment mechanism. At least one damping unit for purposes of damping a dynamic loading effected by the adjustable flap on the adjustment unit, which can occur as a result of a critical malfunction event occurring in the region of the adjustable flap, is arranged, or can be arranged, between the main wing surface and the adjustable flap.

Abstract: An aircraft comprising: a flight control surface and a rigid hinged panel both pivotably coupled to a wing; a drive linkage which links the flight control surface to the panel so that rotation of the former drives rotation of the latter, the drive linkage comprising first and second links, a first joint which pivotably couples the first and second links to each other, and a second joint which pivotably couples the first link to the flight control surface; and a cam track structure mounted to the wing, the cam track structure comprising first and second cam surfaces having extra run-out space at both ends thereof to prevent jamming. At least one of the links comprises a weakened portion which is designed to fail when a structural overload is produced due to jamming. Additional features can be added to the mechanism to block, shield, and shed other obstruction avenues.

Abstract: An aircraft with airfoils having a main wing and at least one control flap arranged such to be adjusted relative to the main wing, as well as a high-lift system with at least one regulating flap for adjusting the lift of the airfoils to adjust the state of lift of the aircraft, featuring flow control devices for influencing the fluid flowing over the surface segment; an activating unit; and a lift state specification device connected to the activating unit for adjusting the state of lift of the aircraft.

Abstract: The invention relates to fluid actuator for influencing the flow along a flow surface through ejection of a fluid. By means of a like fluid actuator, a continuous flow is distributed to at least two outlet openings in order to generate fluid pulses out of these outlet openings. Control of this distribution takes place inside an interaction chamber which is supplied with fluid flow via a feed line. Into this interaction chamber there merge at least two control lines via control openings to which a respective different pressure may be applied. Depending on the pressure difference at the control openings, the flow in the interaction chamber is distributed to the individual outlet openings.

Abstract: A system and method for robust lift generation through flow separation suppression are presented. A fluid flow is ejected over a lifting surface from a fluid ejection orifice, and a flow direction of the fluid flow over the lifting surface is directed using a plurality of vanes configured in the fluid ejection orifice. The flow direction is rotated in a span-wise direction over the lifting surface by swiveling the vanes.

Abstract: A wing-drive mechanism includes at least one sub-mechanism having a motor that drives a drive shaft in a single direction. The sub-mechanism includes a converter means for converting the rotary motion of the drive shaft to a linear or arcuate back-and-forth motion; amplitude control means for controllably varying the extent of the linear or arcuate back-and-forth motion produced by the converter means; and a rotatably mounted output mechanism engaged with the converter means such that when the converter means produces the linear or arcuate back-and-forth motion, a corresponding alternating rotary motion is imparted to the output mechanism. In other embodiments, the invention is also a wing-drive mechanism and a method for configuring pairs of wing-drive mechanisms.

Abstract: A control and/or management system for a vehicle includes at least one of: (A) at least two redundant vehicle management computers configured to generate system control commands for each maneuvering actuators and for each system actor based on the data acquired by the sensors; (B) at least two redundant remote interface units for interconnecting a sensor or a system actor with a vehicle management computer; (C) at least two redundant actuator control computers configured to generate control commands for each maneuvering actuator based on received maneuvering commands; and (D) a common interface for connecting an external computer, the common interface being directly connected to at least two redundant computers.

Abstract: A multi-rotor UAV having a pull pin mechanism that engages and disengages the rotor arms from a deployed, in-flight position to a storage or transport configuration, thus making the UAV more portable and capable of carrying larger payloads with the flexibility of folding into a smaller configuration or profile for transport, such as in a backpack. The device includes a rotor arm utilization of a pull pin mechanism to lock and unlock the position of the arms, and a proprietary frame.

Abstract: This disclosure describes an unmanned aerial vehicle (“UAV”) configured to autonomously deliver items of inventory to various destinations. The UAV may receive inventory information and a destination location and autonomously retrieve the inventory from a location within a materials handling facility, compute a route from the materials handling facility to a destination and travel to the destination to deliver the inventory.

Abstract: A handrail apparatus and method for use with vehicles are disclosed. An apparatus in accordance with the teachings of this disclosure includes a first coupling plate to be coupled to a monument of a vehicle, a second coupling plate to be coupled to the monument of the vehicle. The apparatus includes a handrail coupled to the first coupling plate and a support coupled to the second coupling plate and the handrail. The handrail is movable between a stowed position and a deployed position.

Abstract: An adjustable clamping mount for cell phones, tablets and other mobile devices has a telescoping clamp, a clamp support arm, and a tightening mechanism. The telescoping clamp has two telescoping arms connecting two clamp halves, allowing the clamp to grip mobile devices of practically any size. An attachment clip of the clamp support arm is intended and shaped for attaching to an airplane tray table. The tightening mechanism allows the telescoping clamp and the clamp support arm to be secured in any desired angle relative to each other.

Abstract: A seat back tray table that includes an arm assembly attached to a seat having a seat back, and moveable between a stowed position and a deployed, use position, a first table segment carried by the arm assembly and moveable with the arm assembly between a stowed position against a stowage area of the seat back and a deployed position aft of the stowage area, and a second table segment carried by the first table segment and moveable between a stored position within the stowage area of the seat back and a deployed position laterally-extended from the first table segment to increase the total surface area of the tray table.

Abstract: An aircraft passenger seat base frame including spaced left and right spreaders cooperatively supporting a seat bottom and a seatback, spaced front and rear transverse beams interconnecting the left and right spreaders, spaced left and right leg assemblies each including a front leg and a rear leg, an in-flight entertainment component position in a space below the seat bottom, and a life vest container positioned below a front end of the seat bottom.

Abstract: An apparatus for holding a cabin attendant seat in a cabin of a vehicle includes a base body attachable to a wall surface in the cabin, at least one holding mechanism for holding a cabin attendant seat, at least one linear movement mechanism, and at least one arresting mechanism. The at least one linear movement mechanism is attached to the base body and supports the at least one holding mechanism. The at least one linear movement mechanism is configured for laterally moving the at least one holding mechanism between at least two laterally distanced discrete positions. The at least one arresting mechanism is coupled with the at least one linear movement mechanism and is configured for arresting the at least one linear movement mechanism in the at least two discrete positions. By this apparatus a very space effective provision of a cabin attendant seat especially on a monument is given.

Abstract: A bi-fold valve door and method for controlling aircraft cabin pressure are provided. The bi-fold valve door includes an aft door section and a forward door section, and only the forward door section is selectively rotated about one rotational axis to a position between a closed position and a full-open position, while the aft door section is maintained in its closed position. The forward door section is selectively rotated about the rotational axis to a full-open position to engage the aft door section, while the aft door section is maintained in its closed position. When the forward door section is in the full-open position, the aft door section and the forward door section are simultaneously rotated about another rotational axis.

Abstract: A ram air canopy includes a top skin, a bottom skin, a plurality of ribs between the top skin and the bottom skin forming a plurality of cells. A leading edge of a cell includes an opening to allow air to enter the cell. A glide vent is disposed in the top skin to allow air the exit the cell.

Abstract: A system is described to control the flight path of a parafoil. The physical control mechanism is a series of actuators embedded within the parafoil canopy that open a series of meshed venting systems in the upper surface of the parafoil canopy. Opening and closing the meshed venting system changes the forces and moments acting on the parafoil canopy in a consistent manner such that it can be used for flight control. The meshed venting system includes an internal sealing flap and a mesh member.

Abstract: An aeroplane comprising a fuselage elongated in a longitudinal direction of the aeroplane is provided. The aeroplane includes a wing attached to the fuselage in a midsection of said fuselage in the longitudinal direction, such that part of the fuselage extends forward of the wing toward a front extremity of the fuselage, and part of the fuselage extends from the rear of the wing toward a rear extremity of the fuselage. A rear fuselage section includes at least one engine attached to the fuselage and located to the rear of the wing. The one or more engines attached to the fuselage are attached in a rear position such that only parts of the aeroplane located in a projection space of the one or more engines attached to the fuselage and the rear fuselage does not include any aerodynamic surfaces intended to assure stability and/or aerodynamic control of the aeroplane.

Abstract: An engine fastener for an aircraft, to secure an engine to a pylon and comprising a fastener body fixed to the pylon and having a cylindrical extension, and a fixing assembly comprising a paddle fixed to the engine and a connection arrangement joined to the paddle and arranged on the cylindrical extension to form a ball-and-socket joint between the cylindrical extension and the paddle. The connection arrangement comprises a ball, formed in one piece, having a central bore in which the cylindrical extension fits, and of which the outer surface is a spherical portion, a fixing element fixing the ball on the cylindrical extension, and two cages, each having an inner surface assuming the form of a spherical portion. The two inner surfaces are arranged opposite one another to house the ball, and for each cage, a joining element joins the cage to the paddle.

Abstract: A gas turbine engine includes a first annular portion that is stationary and adapted for partially surrounding an engine core. The first annular portion includes a fore pylon connecting portion. A rail is coupled to the fore pylon portion and extends in the aft direction from the stationary portion. A second annular portion is positioned aft of the first portion and coupled to the rail, the second portion being movable along an engine core centerline between a closed position and an open position, wherein the second annular portion is configured to engage with the first annular portion in the closed position to provide access to an engine core. The second annular portion includes a nozzle plug.