Abstract: A system and method are provided for safe arming a flying machine that carries an explosive device. Once armed, the flying machine can provide air defense against a target (e.g., an unwanted aircraft) by using the explosive device to kinetically intercept the unwanted aircraft. The flying machine can include an explosive device, an arming device, and one or more sensors (e.g., a 9-axis inertial measurement unit). By processing the sensor data, the flying machine determines whether arming criteria have been satisfied (e.g., the flying machine has attained a desired altitude or undergone a specified pattern of accelerations), and when the arming criteria are satisfied the flying machine arms the explosive device by completing a detonation path. If the explosive device is not detonated, the system returns to a safe state before the flying machine back to its origin.

Abstract: A system and method are provided to defend against intruding aircraft using an intercept aircraft to detonate a radar/kinetic projectile package in proximity to the unwanted aircraft. The projectile device shoots projectiles through the intruding aircraft to disable it. The intercept aircraft includes a radar, a projectile device, and processors operating on radar data to detect the intruding aircraft and predict its path. The intercept aircraft is flown to an intercept point on the predicted path, where the intercept aircraft waits for the intruding aircraft and then detonates an explosive launching the projectiles through the intruding aircraft thereby disabling it and also achieving the self-destruction of the radar/kinetic projectile package and one or more parts (e.g., secret or proprietary parts) of the radar and/or the intercept aircraft.