Abstract: A secondary release arrangement for a releasable restraint may comprise a flexible member in operable communication with a strap attached to the releasable restraint configured to release the strap from the releasable restraint in response to a tensile force in the flexible member exceeding a selected threshold. In various embodiments, the secondary release arrangement may be configured to allow deployment of an evacuation system in the event of the releasable restraint failing to release.

Abstract: A computer program product for maintaining a machine. The system includes an aerial vehicle configured to fly to a lubrication location proximate the machine. A supply of friction minimizing material is carried by the aerial vehicle. A controller is configured to deliver at least part of the supply of friction minimizing material to the machine when the aerial vehicle is at the lubrication location.

Abstract: A handgun brace for stabilizing a handgun on a user's forearm includes a body adapted to detachably engage a support structure such as a receiver extension extending rearwardly out of the rear end of a handgun, a first arm extending generally downwardly from the body, and a second arm pivotally connected to the first arm. The second arm is selectively moveable between a stowed position wherein and end of the second arm is received against a side of the body, and a deployed position wherein the first arm and the second arm form a downwardly rigid forearm support structure under the body. The forearm support structure includes a continuous support surface upon which a user's forearm is removably receivable to stabilize the handgun when the body is engaged with the support structure of the handgun.

Abstract: A blast panel assembly includes a laminate formed of a plurality of glued together sheets of plywood mounted in a metal frame.

Abstract: A method for supplying pressurized air to an aircraft includes that bleed air is bled from a portion of a turbomachine of the aircraft and a thrust output of the turbomachine is increased to increase a pressure of the bleed air in a predetermined environmental condition. The method also includes that modes of an environmental control system (ECS) are switched from a first operating mode configured to receive bleed air from each engine of the aircraft in a first environmental condition to a second operating mode configured to receive bleed air from at least one engine of the aircraft in a second environmental condition. The method further includes that engine thrust is increased in at least one engine and engine thrust is reduced from at least the other engine to maintain a constant total thrust when the ECS is in the second operating mode.

Abstract: A system or assembly for securing accessories to an underlying firearm assembly. The accessory mounting assembly includes a base that is constructed to be secured to a mount plate that is securable to an underlying firearm. An accessory support is securable to the base and moveable in a horizontal lateral direction relative thereto. An engagement or interface arrangement is provided between the base and the accessory support such that the accessory support can be translated in a lateral direction that is orthogonal to a bore of the underlying firearm and is constructed to provide vertical association of discrete accessory supports relative to the base.

Abstract: This invention relates to a noise attenuation device and in particular a device which provides an increased performance in the range of a mortar system. A noise attenuation device suitable for use on a munition barrel, said device comprising an barrel extension portion, wherein the barrel extension portion has a length in the range of from 10 cm to 60 cm, at a first end of said barrel extension portion there is a tapered portion which tapers outwardly from said barrel extension portion, wherein said tapered portion, is frustoconical and has a cone angle in the range of from 22° to 28°, at a second end of the barrel extension portion a connector to secure the device onto a munition barrel.

Abstract: A cartridge magazine is provided. The cartridge magazine may include a rib mounted on a vertical wall of the cartridge magazine. The cartridge may further include a ramp attached to a top of the rib. In another embodiment, the cartridge magazine may include an opening including spacer having a flat portion. The flat portion provides space for a cartridge of a particular caliber between the flat portion of the spacer and an opposing wall of the cartridge magazine.

Abstract: An obturator ring (4) for a mortar round (2) is proposed where the geometry of the ring (4) is modified by its sliding and striking stationary anvil (18) when the round (2) is placed in the muzzle-loaded mortar's barrel (6) and reaches its bottom. The initial ring (4) geometry does not impede round's travel down the barrel (6) while its modified geometry provides a gas seal between the round (2) and the barrel (6) wall. Several embodiments featuring free-rotating (4), splined non-rotational (4a) and stationary separated (12a-14a) designs are presented. The ring works with both smoothbore and rifled mortar barrels and in several embodiments imparts rotation to the round (2) if used in a rifled barrel (6). An optimized muzzle-loaded mortar barrel (6) operating in cooperation with rounds equipped with the obturator ring of instant invention is also presented, containing rifled (6a) and smoothbore (6b) sections.

Abstract: A dot sighting device includes a housing, a light source, a beam splitter and a reflective element. The housing has a first opening and a second opening. A first axis is defined from the first opening to the second opening. The light source emits light. The beam splitter includes a surface that reflects at least a portion of a first light component and transmits at least a portion of a second light component. The second light component is defined as light that enters the housing through the first opening.

Abstract: A kit and method for aligning a scope located a shooting weapon including calibrating first and second electronic alignment sensors while on the shooting weapon, placing the second electronic alignment sensor on the scope, and adjusting an alignment of the scope relative to the shooting weapon if the first and second electronic alignment sensors indicate relative vertical misalignment.

Abstract: In one embodiment, an apparatus may comprise: a floor panel for a rotorcraft; and a plurality of passenger seats coupled to the floor panel, wherein: the plurality of passenger seats is arranged into a plurality of seating rows; and the plurality of passenger seats comprises one or more foldover seats arranged to facilitate access to one or more exits of the rotorcraft.

Abstract: A lavatory for an aircraft cabin includes a wall having a forward wall portion disposed immediately aft of and substantially conforming to an exterior aft surface of an aircraft cabin structure, such as a passenger seat, that is substantially not flat in a vertical plane. The forward wall portion includes a forward projection over an aft portion of the adjacent passenger seat. The forward wall portion can define a secondary space in the interior lavatory space, which can provide an amenity stowage space, and can include design elements providing visual space.

Abstract: A drip pan apparatus for a helicopter includes a frame and a drip pan. The frame is secured to a skirt on the airframe of the helicopter. The apparatus includes a drip pan for cooperation with a frame to cover an access opening to a transmission. The drip pan includes a substantially planar member of a fiber-reinforced composite and has a seal surface that is configured to cooperate with a seal surface of the frame. A seal member may be disposed between the substantially planar member and the frame to form a fluid-tight seal. The fiber-reinforced composite may be a carbon fiber-reinforced composite. A method of making the drip pan apparatus includes placing a plurality of sheets of an uncured fiber-reinforced composite material on one another to form an uncured stack. The uncured stack is then cured. A frame and a drip pan may be cut from the cured stack.

Abstract: A bipod for a rifle traditionally has a release button/bracket in the front of the adjustable leg. To release the adjustable leg the shooter must reach forward and push the button/bracket. This forces the shooter to lose the aligned shooting position on the target. The present invention provides a rearward facing lever that the shooter can depress with his free arm while maintaining the shooting position and his finger on the trigger. The lever can be folded up to a neutral position for use in the prior art fashion or for storage. The lever has a pivot arm that pulls the stopper in a ring bracket rearward out of the traditional locking grooves located along the adjustable leg. The invention is suited for either a retrofit or factory new embodiment.

Abstract: Containment vessels are adapted to facilitate blast and dispersion mitigation. According to one example, a containment vessel may include at least one containment layer. At least one expansion member may be coupled to the at least one containment layer to apply a force sufficient to expand a perimeter of the containment layer(s) laterally outward. A closure system may be coupled with the containment layer(s), where the closure system is configured to cinch the perimeter of the containment layer(s) around a target object without manual intervention. Unmanned aerial vehicle (UAV) including a containment vessel, as well as methods of making a containment vessel are also disclosed. Other aspects, embodiments, and features are also included.

Abstract: A nose assembly of an aircraft includes a nose airframe having a nonhorizontal mounting surface and a turret assembly mounted on the nonhorizontal mounting surface. The turret assembly includes a turret device housing rotatable relative to the nonhorizontal mounting surface. The nose airframe includes a nose skin forming a nose fairing having an apex aperture. The nose skin at least partially covers the turret assembly such that the turret assembly is at least partially inset in the apex aperture of the nose fairing.

Abstract: An improved trigger assembly for a firearm includes twin disconnectors that are each independently selectable and adjustable to provide different trigger pull weights. The trigger assembly may be operably controlled by the safety selector which defines several different shaped engaging surfaces that allow the operator to selectively choose which of the disconnectors to operate with the firearm.

Abstract: Disclosed is an autoloading shotgun firearm which shares interchangeable fully compatible modular sub-assemblies, ergonomics, parts commonality, and exterior appearance with the AR rifle platform. Rapidly reversible tool less conversion from rifle to shotgun and vice versa is accomplished by substitution of the AR rifle upper receiver and ammunition detachable magazine with fully compatible shotgun upper receiver and ammunition detachable magazine. Said shotgun utilizes standard rimmed shotgun ammunition via features in the detachable magazine which securely maintain the position and facilitate the feeding of the cartridges during normal operation. No alteration of the AR rifle lower receiver is required. A short-recoil action is integrated into the shotgun upper receiver. The external appearance and functionality of the AR rifle are retained while eliminating the complexity and inherent fouling issues of typical gas systems used in the AR rifle.

Abstract: A reversing system for telescopic sights has a guide sleeve, an outer sleeve and a mount with an optical element, the outer sleeve being axially fixed and rotatable on the guide sleeve, and an inner cam slot in the guide sleeve, and an outer cam slot in the outer sleeve. The mount is axially displaceable in the guide sleeve and has a guide pin that projects into the inner cam slot and the outer cam slot, the guide pin having a carrier shaft with a first pivot bearing and a second pivot bearing seated thereon. The first pivot bearing is guided within the outer cam slot, and the second pivot bearing is guided within the inner cam slot. The first pivot bearing and/or the second pivot bearing have an inner ring that sits on the carrier shaft and an outer ring that is rotatably supported on the inner ring.