While flying is an exceedingly safe means of travel, aircraft manufacturers have to expect the unexpected. Even in the event of total engine failure, aircraft can glide for impressive distances. However, in order to land the aircraft safely, a power source is needed to operate the flight controls. This is where ram air turbines (RATs) come in. RAT systems, a product of Hamilton Sundstrand, can provide emergency power in the event of engine, hydraulic, or electrical failure. Available in hydraulic, electric, and hybrid models, RATs have become a standard of backup systems in modern day aircraft whether it be business, regional, large commercial jets, or military.