A recoil module for a firearm or a firearm simulator is configured to generate forces that simulate the forces generated by firing a live round of ammunition or that help to cancel or reduce the forces generated by firing a live round of ammunition. Such a recoil module could be mounted in or on an actual firearm, a firearm simulator or a flying drone that carries or is integrated with a firearm.

A radio controlled (RC) vehicle includes a receiver that is coupled to receive an RF signal from a remote control device, the RF signal containing command data in accordance with a first coordinate system, wherein the first coordinate system is from a perspective of the remote control device. A motion sensing module generates motion data based on the motion of the RC vehicle. A processing module transforms the command data into control data in accordance with a second coordinate system, wherein the second coordinate system is from a perspective of the RC vehicle. A plurality of control devices control the motion of the RC vehicle based on the control data.

An unmanned quadcopter aircraft system integrated with a pneumatic paintball projectile launching mechanism for recreational and training applications. The system includes a compressed gas powered single-shot paintball launcher with gravity-fed ammunition hopper, mechanical counterweight recoil compensation, and multiple electronic safety systems. GPS-based geofencing prevents firing in restricted zones, while altitude sensors prevent firing above predetermined heights. The flight control system automatically reduces aircraft speed and altitude limits when the projectile system is armed. A ground control system integrates standard flight controls with firing controls, safety indicators, and emergency stop capability. An alternative embodiment allows a used to adjust the elevation of the firing system while maintaining the orientation of the drone in space and also allowing recoil compensation. The system enables aerial paintball gaming and training scenarios while maintaining safety through redundant control systems and automatic parameter limiting.

A vertical take-off and landing (VTOL) aerial vehicle includes a power source, a fuselage assembly, and a propulsion system. The fuselage assembly includes a body defining a first axis and a plurality of supports extending from the body. The propulsion system includes a thruster assembly positioned on the plurality of supports and diametrically opposed wings extending from the fuselage assembly. The wings define a second axis perpendicular to the first axis. The thruster assembly is configured to generate an airflow and includes a plurality of rotors arranged symmetrically along the first axis and at least one electric motor configured to power the plurality of rotors.

An attachable delivery device is configured to be carried by a delivery vehicle and to deploy a payload at a target. The attachable delivery device includes a base configured to house the payload. The attachable delivery device also includes at least one tape spring attached to the base. The at least one tape spring is configured to deploy from a first transport position to a second deployed position. The attachable delivery device also includes a buckle contact configured to attach to the base and to move relative to the base. The movement of the buckle contact relative to the base is configured to cause the at least one tape spring to deploy from the first transport position to the second deployed position.

A system and method allowing spoon-based devices to be carried and dropped by a drone. The preferred embodiments are adapted for use with a drone having a retracting drop shaft release mechanism. First and second adapter portions are provided. These clamp around the body of a spoon-based device and hold the spoon-based device. The lower regions of the first and second adapter portions are joined by a pivot joint. The upper regions each include an engagement feature such as an upstanding tang portion. These first and second tang portions are engaged to the drone's release unit.

Examples provide a compensator for a firearm. In one example, a firearm assembly includes a firearm having a barrel defining a projectile bore along a bore axis, an attachment mechanism coupled to the firearm and configured to mount the firearm to a movable platform, and a compensator attached to the barrel. The compensator may have a body that defines at least one compensator port configured to vent a portion of gases exiting the barrel upon firing the firearm. In one example, the compensator is oriented on the barrel to direct the portion of gases vented through the at least one compensator port in a direction to counteract angular recoil forces on the movable platform to which the firearm is mounted, the angular recoil forces being caused upon firing of the firearm.

An explosive ordnance disposal (EOD) apparatus enables a human operator to deliver an EOD neutralization tool via an unmanned vehicle to a target attached to a ferrous or non-ferrous surface, position the tool to the target, fix the neutralization tool in place, and activate the neutralization tool, all remotely so that the human operator is not in danger. The unmanned vehicle disengages from the remainder of the EOD apparatus prior to neutralizing the target so that the unmanned vehicle is not damaged or destroyed. The EOD apparatus includes a flexible web interface that positions a tool holder ring containing the EOD neutralization tool onto the target before finally fixing the EOD neutralization tool into place against a ferrous or non-ferrous surface.