Fun fact: In event of engine and backup failure, planes have an emergency turbine that pops out to generate power.https://t.co/s80GZqIiQx pic.twitter.com/b9WJmhokNl
— SwiftOnSecurity (@SwiftOnSecurity) April 13, 2017
Not a joke:
The Airbus A380 has the largest RAT propeller in the world at 1.63 metres (5.3 ft) in diameter, but around 80 centimetres (2.6 ft) is more common. A typical large RAT on a commercial aircraft can be capable of producing 5 to 70 kW...The following aviation incidents involved the deployment of a ram air turbine:1983: Air Canada Flight 143; also known as the Gimli Glider incident1996: The hijacking of Ethiopian Airlines Flight 9612000: Hapag-Lloyd Flight 33782001: Air Transat Flight 2362004: Pinnacle Airlines Flight 37012009: US Airways Flight 1549[4]2020: Pakistan International Airlines Flight 8303