In some embodiments, an arrow comprises a shaft comprising a tubular wall comprising a cavity and a nock comprising a notch arranged to engage a bowstring. An intake inlet is in fluid communication with the cavity and an exhaust outlet is in fluid communication with the cavity.

According to a first aspect of the present invention, there is provided a reconnaissance and communication assembly, adapted to be launched from a gun barrel into the air. The assembly comprises a carrier (with a cavity) and a payload (within the cavity). The payload is arranged to be controllably expelled from the carrier and once expelled from the carrier, the payload transmits a signal.

A device for unmanned aerial vehicle to deploy a rainfall catalytic bomb deploy which comprises an unmanned aerial vehicle, a cannonball for artificial precipitation and a cylinder, wherein the unmanned aerial vehicle is connected with the cannonball for artificial precipitation through a soft lock, the cannonball for artificial precipitation are multiple and are wrapped in the cylinder, a second sensor is arranged in the cylinder wing surfaces are arranged on the other side of the cylinder, the wing surfaces are multiple and are arranged at one end of the cylinder in the long shaft direction, and one end of the soft lock is connected to the other end of the cylinder in the long shaft direction.

An electronics ordnance delivery system includes an electronics component that is to be delivered into a target. The electronics component is enveloped by a protective housing that assists in the delivery of the electronics component payload. The protective housing is made of an electronically-conductive material such that it can function as an antenna for the transmission of signals by a transmitter component of the electronics component.

In an intelligent multi-rotor rescue thrower, a throwing projectile head is located at a foremost end of the thrower, a parachute storage bin is mounted at a center of a front end of the throwing projectile head, a rear end of the throwing projectile head is connected to a projectile body shell through threads, and a first splitter plate, a second splitter plate, and a third splitter plate are directly connected to the projectile body shell through slide grooves built in the projectile body shell to equally divide a space in a cavity of the projectile body shell; connecting flanges tightly connect the projectile body shell to motors, a rotor is connected to an upper end of each of the motors, and three rotors are provided in the space in the cavity of the projectile body shell.

A system and method of locating a target and presenting the location via augmented reality. The inventive subject matter includes a projectile that can transmit information including location information to other computing devices. These computing devices can then use the location information to determine the relative location of the projectile relative to the computing device and generate a visual representation of the location of the projectile on an augmented reality display such that the location of the target is overlaid over a real-world view through the display.

A lethal projectile for immobilizing a target is capable of self-separating or otherwise opening after launch by a launcher and may release a payload prior to impact with a target. Opening may caused after an energy storage means of the projectile is charged beyond a threshold energy level. Charging of the energy storage means may be accomplished through dynamic induction when the projectile moves through a stationary magnetic field generated by a magnet of the launcher prior to launch, A control circuit can increase or decrease the magnetic field strength of the magnetic field in order to control the distance at which the projectile releases its payload, A rangefinder may provide distance information to the control circuit for charging the energy storage means to a specific energy level associated with the distance to a target.

An arrow includes an arrowhead, a shaft, a nock, and an internal cavity. The internal cavity includes a camera.

Disclosed are a projectile and a method of its manufacture for the field of investigating the strength properties of a solid material by application of a mechanical force and more particularly for bird strike tests consisting of a gel including glycerol. A projectile 1 according to the invention may have a central portion 4 of cylindrical shape including a substantially hemispherical portion 2, 3 at each of the ends thereof.

A non-lethal projectile having a shear-thinning fluid within an interior cavity. The shear-thinning fluid having a greater apparent viscosity at low shear rates to spin-stabilize the non-lethal projectile during flight and a lower apparent viscosity at a high shear rate corresponding with the shear-thinning fluid shearing against the frangible cap upon the non-lethal projectile striking the target, with the low viscosity of the shear-thinning fluid allowing proper dispersal upon impact with the target. The shear-thinning fluid can comprise a marking media and be in the form of an emulsion with less than about 50% liquid by volume to effectively disperse upon impact with the target.