What is RAT that got deployed seconds before Air India plane crashed in Ahmedabad?
A Ram Air Turbine (RAT) is small turbine fitted on aircraft that serves as emergency hydraulic/electrical power source. It generates power from airstream based on aircraft's speed and connects to generator/hydraulic pump. Aircraft use it only if hydraulic systems fail or primary electrical power is lost. Notably, RAT got deployed on Air India plane before it crashed in Ahmedabad.