A system for providing supplemental power and fire suppression on an aircraft, comprising: a turbine configured to convert a compressed gas into at least one of electrical power, hydraulic power, or pneumatic power; a storage tank configured to store the compressed gas; a fire suppression control valve coupled between the storage tank and a cargo compartment of the aircraft and having a suppression closed position in which the compressed gas is prevented from flowing to the cargo compartment and a suppression open position in which the compressed gas flows through the fire suppression control valve to the cargo compartment to suppress a fire; and a pump control valve coupled between the turbine and the storage tank and having a pump closed position in which the compressed gas is prevented from flowing to the turbine and a pump open position in which the compressed gas flows through the pump control valve to the turbine to cause the turbine to convert the compressed gas into the at least one of the electrical power, the hydraulic power, or the pneumatic power; and a controller coupled to the fire suppression control valve and the pump control valve and configured to control the fire suppression control valve to change from the suppression closed position to the suppression open position in response to determining, using a fire sensor, that the fire exists in the cargo compartment, and to control the pump control valve to be in the pump open position in response to determining, using an electrical sensor, that the aircraft has lost or lacks power; wherein the fire suppression control valve has a suppression partially open position in which the compressed gas may flow to the cargo compartment at a slower rate than in the suppression open position, wherein the controller is further configured to control the fire suppression control valve to change from the suppression open position to the suppression partially open position after a predetermined amount of time from controlling the fire suppression control valve from the suppression closed position to suppression open positon. a turbine configured to convert a compressed gas into at least one of electrical power, hydraulic power, or pneumatic power; a storage tank configured to store the compressed gas; a fire suppression control valve coupled between the storage tank and a cargo compartment of the aircraft and having a suppression closed position in which the compressed gas is prevented from flowing to the cargo compartment and a suppression open position in which the compressed gas flows through the fire suppression control valve to the cargo compartment to suppress a fire; and a pump control valve coupled between the turbine and the storage tank and having a pump closed position in which the compressed gas is prevented from flowing to the turbine and a pump open position in which the compressed gas flows through the pump control valve to the turbine to cause the turbine to convert the compressed gas into the at least one of the electrical power, the hydraulic power, or the pneumatic power; and a controller coupled to the fire suppression control valve and the pump control valve and configured to control the fire suppression control valve to change from the suppression closed position to the suppression open position in response to determining, using a fire sensor, that the fire exists in the cargo compartment, and to control the pump control valve to be in the pump open position in response to determining, using an electrical sensor, that the aircraft has lost or lacks power; wherein the fire suppression control valve has a suppression partially open position in which the compressed gas may flow to the cargo compartment at a slower rate than in the suppression open position, wherein the controller is further configured to control the fire suppression control valve to change from the suppression open position to the suppression partially open position after a predetermined amount of time from controlling the fire suppression control valve from the suppression closed position to suppression open positon.