Abstract: A light emitting inflatable safety beacon is disclosed for identifying a location of the beacon. The beacon comprises an elongated bladder defining an interior chamber extending between an upper end and a lower end. A tether extends between a first end and a second end. A couple links the tether with the elongated bladder for suspending the tether within the interior chamber. A light source is secured to the tether for emitting an electromagnetic radiation. The electromagnetic radiation internally illuminates the elongated bladder for creating an illuminated beacon. The electromagnetic radiation traverses the elongated bladder for creating a location beacon.

Abstract: Methods and devices are provided for rescuing and recovering underwater vehicles. In one embodiment, a system is provided that includes a modular rescue device configured to attach to an underwater vehicle, such as with a tow line. The rescue device can include one or more emergency mechanisms that can be automatically and/or manually activated to aid in detecting the location of the underwater vehicle in the event of an emergency. One exemplary emergency mechanism includes a buoyancy mechanism, e.g., an expandable lift bag, configured to be inflated with a fluid to add buoyancy force to the system to pull the underwater vehicle toward a water surface. Another exemplary emergency mechanism includes a signaling mechanism configured to signal the underwater vehicle's location.