Abstract: Methods and systems for wirelessly offloading data recorded on a flight recorder. In one embodiment, a method of offloading data recorded on a flight recorder includes determining whether to enable a wireless transmitter and wirelessly transmitting previously stored data on the flight recorder via the wireless transmitter according to the determination. In one aspect, wireless transmission is determined by wireless parameters, such as weight on wheels, air speed, ground speed, engine speed, open compartments and sensed forces or other airplane parameters made available to the flight recorder. Wireless transmission may be initiated either manually or automatically.

Abstract: A device and method to provide backup electrical power to a vehicle data acquisition and recording system. The device operates to control its charging state, discharge state, and interval of discharge to ensure reliable operation of the recording system. The method delineates the process by which continuous electrical power can be supplied to the recording system.