A lug assembly can include a frame, lug base, lug, and door. The lug assembly can be attached to a projectile that can be coupled and decoupled to an aircraft via the lug assembly. The frame can slidably receive the door. The lug can connect to the lug base and rotate thereabout from a first lug position to a second lug position upon the projectile decoupling. In the second lug position, the lug is contained within the frame such that an aerodynamic profile of the projectile is preserved. The door can connect to the lug base via a closing mechanism including one or more tension mechanism that apply a closing force to the door. Upon the projectile decoupling, the closing force causes the door to slide from a first to a second position, the door transitioning the lug to the second lug position and substantially sealing the frame opening.

The present invention provides an unmanned aerial vehicle with non-lethal neuromuscular incapacitation system comprising a body, a plurality of rotary assemblies secured to the body and configured to provide lift, a control system disposed within the body, and a telescoping stinger assembly mounted on the body. The telescoping stinger assembly comprises an elongated projectile having a barb at a first end thereof, a wire having a first end attached to a second end of the elongated projectile, a high voltage pulse power supply attached to a second end of the wire, and firing mechanism for launching the projectile from the telescoping stinger assembly toward a target. A protective cage may be attached to and surround the body of the UAV. The non-lethal incapacitation mechanism may include a plurality of stinging stickers attached to a periphery of the protective cage, a RF power supply and RF transmitter attached to the body of the unmanned aerial vehicle, or a mechanism affixed to the body of the unmanned aerial vehicle for discharging a liquid or powder substance at a target. Alternatively, a rotary sting arm may be affixed to the body by a rotary brush high-voltage connection; and a sting arm motor mounted proximate to a center of the body may be used to impart rotary motion to the rotary sting arm.

The present invention provides an unmanned aerial vehicle with non-lethal neuromuscular incapacitation system comprising a body, a plurality of rotary assemblies secured to the body and configured to provide lift, a control system disposed within the body, and a telescoping stinger assembly mounted on the body. The telescoping stinger assembly comprises an elongated projectile having a barb at a first end thereof, a wire having a first end attached to a second end of the elongated projectile, a high voltage pulse power supply attached to a second end of the wire, and firing mechanism for launching the projectile from the telescoping stinger assembly toward a target. A protective cage may be attached to and surround the body of the UAV. The non-lethal incapacitation mechanism may include a plurality of stinging stickers attached to a periphery of the protective cage, a RF power supply and RF transmitter attached to the body of the unmanned aerial vehicle, or a mechanism affixed to the body of the unmanned aerial vehicle for discharging a liquid or powder substance at a target. Alternatively, a rotary sting arm may be affixed to the body by a rotary brush high-voltage connection; and a sting arm motor mounted proximate to a center of the body may be used to impart rotary motion to the rotary sting arm.

The present invention relates to a spring arrangement for use in a countermeasure magazine, said spring arrangement including a plurality of elements, wherein each one of said elements has a base portion and a plurality of spring portions extending from a first edge of said base portion, and wherein said spring portions of each element are distributed along a length of said base portion, and wherein said elements include mating connection means such that said elements may be connected to each other.

Portable EO/IR turret systems and methods of using the same are provided. The portable EO/IR turret systems may be installed and used on a variety of different types of stationary and mobile platforms, and may be optionally self-contained and self-powered. The portable EO/IR turret systems may also be configured and dimensioned as fully operational EO/IR turrets that are contained within a carry-on package or other type of portable chassis that may be temporarily placed and used on a first host platform, and then optionally moved and re-used on a second and different host platform, and further optionally with no required modification/s to either the first or second host platform.

An aircraft defining a longitudinal direction and a lateral direction is provided. The aircraft includes: a fuselage; an engine mounted at a location spaced from the fuselage of the aircraft, the engine comprising a plurality of rotor blades; and a fuselage shield attached to or formed integrally with the fuselage at a location in alignment with the plurality of rotor blades along the lateral direction, the fuselage shield comprising a first layer defining a first density and a second layer defining a second density, the first density being different than the second density.

An aircraft, including a fixed nacelle disposed on a wing of the aircraft, the fixed nacelle including a nacelle opening; a proprotor pylon disposed on the wing and rotatable relative to the fixed nacelle between a substantially horizontal position and a non-horizontal position, wherein rotation of the proprotor pylon to a non-horizontal position exposes the nacelle opening; and a movable cover disposed on at least one of the wing and fixed nacelle, said movable cover including a plurality of cover members that are movable between a closed position where at least a portion of the cover members collectively form a protective cover in front of the nacelle opening when the proprotor pylon is positioned in the non-horizontal position and a stowed position where at least a portion of the plurality of cover members are stowed. In other aspects, there is provide a method of covering a nacelle opening.

An aircraft, including a fixed nacelle disposed on a wing of the aircraft, the fixed nacelle including a nacelle opening; a proprotor pylon disposed on the wing and rotatable relative to the fixed nacelle between a substantially horizontal position and a non-horizontal position, wherein rotation of the proprotor pylon to a non-horizontal position exposes the nacelle opening; and a movable cover disposed on at least one of the wing and fixed nacelle, said movable cover including a plurality of cover members that are movable between a closed position where at least a portion of the cover members collectively form a protective cover in front of the nacelle opening when the proprotor pylon is positioned in the non-horizontal position and a stowed position where at least a portion of the plurality of cover members are stowed. In other aspects, there is provide a method of covering a nacelle opening.

A plug for insertion into a blast-tube exit cavity of a gun-blast diffuser comprises a plug front surface, a plug rear surface, a plug side surface that extends between the plug front surface and the plug rear surface, a body, comprising a polyurethane foam, and a substrate, coupled to the body and comprising a conductive nonwoven fabric, impregnated with a polyurethane matrix. The plug front surface of the plug is formed by the substrate. The plug rear surface of the plug is formed by the body. The plug side surface of the plug is formed by the substrate and the body.

A plug for insertion into a blast-tube exit cavity of a gun-blast diffuser comprises a plug front surface, a plug rear surface, a plug side surface that extends between the plug front surface and the plug rear surface, a body, comprising a polyurethane foam, and a substrate, coupled to the body and comprising a conductive nonwoven fabric, impregnated with a polyurethane matrix. The plug front surface of the plug is formed by the substrate. The plug rear surface of the plug is formed by the body. The plug side surface of the plug is formed by the substrate and the body.