A retractable runway edge sheave for use in an aircraft arresting system. The arresting system functions to extend a cable across a runway for capture by a tailhook of an aircraft. The retractable runway edge sheave is designed to raise and lower the cable. The disclosed system may also feature a ramping system.

A capturing hook for engaging a cable during capture and release of an aerial vehicle may comprise a first and second gate pivotally supported at their first ends by a base portion and each being movable between a closed position and an open position, but spring-biased to the closed position. The capturing hook may further include a latch device comprising a movable locking part biased by a return spring to a locked position to lock the second gate in the closed position.

A capturing hook for engaging a cable during capture and release of an aerial vehicle may comprise a first and second gate pivotally supported at their first ends by a base portion and each being movable between a closed position and an open position, but spring-biased to the closed position. The capturing hook may further include a latch device comprising a movable locking part biased by a return spring to a locked position to lock the second gate in the closed position.

An aerial vehicle having a vision based navigation system for capturing an arresting cable situated at a landing site may comprise a fuselage having a propulsion system; an arresting device coupled to the fuselage, the arresting device to capture the arresting cable at the landing site; a camera situated on the aerial vehicle; an infrared illuminator situated on the aerial vehicle to illuminate the landing site, wherein the arresting cable has two infrared reflectors situated thereon; and an onboard vision processor. The onboard vision processor may (i) generate a plurality of coordinates representing features of the landing site using an image thresholding technique, (ii) eliminate one or more coordinates as outlier coordinates using linear correlation, and (iii) identify two of the plurality of coordinates as the two infrared reflectors using a Kalman filter.

An aerial vehicle having a vision based navigation system for capturing an arresting cable situated at a landing site may comprise a fuselage having a propulsion system; an arresting device coupled to the fuselage, the arresting device to capture the arresting cable at the landing site; a camera situated on the aerial vehicle; an infrared illuminator situated on the aerial vehicle to illuminate the landing site, wherein the arresting cable has two infrared reflectors situated thereon; and an onboard vision processor. The onboard vision processor may (i) generate a plurality of coordinates representing features of the landing site using an image thresholding technique, (ii) eliminate one or more coordinates as outlier coordinates using linear correlation, and (iii) identify two of the plurality of coordinates as the two infrared reflectors using a Kalman filter.

Methods, apparatus, systems, and articles of manufacture are disclosed. An example locking assembly for an arresting hook system includes a track coupled to a frame of an aircraft. The track includes a forward end and an aft end opposite the forward end. The track includes a first lock positioned at the forward end and a second lock positioned at the aft end. The locking assembly includes a guide coupled to a hook shank of the arresting hook system. The guide is to move along at least a portion of the track, engage the first lock when the hook shank is in a stowed position, and bypass the second lock as the hook shank moves from the stowed position to a deployed position.

Methods, apparatus, systems, and articles of manufacture are disclosed. An example locking assembly for an arresting hook system includes a track coupled to a frame of an aircraft. The track includes a forward end and an aft end opposite the forward end. The track includes a first lock positioned at the forward end and a second lock positioned at the aft end. The locking assembly includes a guide coupled to a hook shank of the arresting hook system. The guide is to move along at least a portion of the track, engage the first lock when the hook shank is in a stowed position, and bypass the second lock as the hook shank moves from the stowed position to a deployed position.

Methods, apparatus, systems, and articles of manufacture are disclosed. An example pivot assembly for use with an arresting hook includes a coupler having a first opening defining a first axis and a second opening defining a second axis, the first opening transverse relative to the second opening. A linkage arm has a body and an arm. The body includes a third opening defining a third axis. The first opening of the coupler is to receive the body of the linkage arm such that the second opening of the coupler coaxially aligns with the third opening of linkage arm. A pin extends through the second opening and the third opening to couple the coupler and the linkage arm.

Methods, apparatus, systems, and articles of manufacture are disclosed. An example pivot assembly for use with an arresting hook includes a coupler having a first opening defining a first axis and a second opening defining a second axis, the first opening transverse relative to the second opening. A linkage arm has a body and an arm. The body includes a third opening defining a third axis. The first opening of the coupler is to receive the body of the linkage arm such that the second opening of the coupler coaxially aligns with the third opening of linkage arm. A pin extends through the second opening and the third opening to couple the coupler and the linkage arm.

Methods, apparatus, systems, and articles of manufacture are disclosed. An example arresting hook system for an aircraft includes a linkage assembly defining a trapeze deployment assembly of the arresting hook system, a pivot assembly to pivotally couple a hook shank to a primary pivot joint of an aft body, a vertical actuator coupled to a forward body and a frame of the aircraft to move the arresting hook system between a stowed position and an intermediate position, and a vertical damper actuator (VDA) including a cylinder and a piston. The cylinder pivotally coupled to the frame of the aircraft via a VDA pivot joint, the VDA to rotate relative to the frame of the aircraft, the piston having an end operatively coupled to the pivot assembly, the VDA to move the arresting hook system between the intermediate position and a deployed position.