A power safety system (301) is configured to provide power information in an aircraft (101). The power safety system (301) includes a power safety instrument (303) having a power required indicator (311) and a power available indicator (313), each being located on a display. A position of the power required indicator (311) and the power available indicator (313) represent the power available and power required to perform a hover flight maneuver. The power safety system (301) may be operated in a flight planning mode or in a current flight mode. The power safety system (301) uses at least one sensor (309) to measure variables having an effect on the power required and the power available.