![A350 XWB News: One of the first test already done in the A350 MSN1 test-flights has been the RAT emergency power system. A350 XWB News: One of the first test already done in the A350 MSN1 test-flights has been the RAT emergency power system.](http://3.bp.blogspot.com/-gicA1uuLOP8/UeR7YhTzZLI/AAAAAAAAF7w/k6_fBYUGQj0/s1600/A350+RAT+deployed.jpg)
A350 XWB News: One of the first test already done in the A350 MSN1 test-flights has been the RAT emergency power system.
![A350Blog on Twitter: "What is that in the belly fairing of #A350? The ram air turbine (RAT)deployed during landing https://t.co/GHSyiCbNbw https://t.co/guagTXfE5T" / Twitter A350Blog on Twitter: "What is that in the belly fairing of #A350? The ram air turbine (RAT)deployed during landing https://t.co/GHSyiCbNbw https://t.co/guagTXfE5T" / Twitter](https://pbs.twimg.com/media/CeWmJtdWQAAiIHv.jpg)
A350Blog on Twitter: "What is that in the belly fairing of #A350? The ram air turbine (RAT)deployed during landing https://t.co/GHSyiCbNbw https://t.co/guagTXfE5T" / Twitter
![aircraft systems - Is there a maximum airspeed to deploy a ram air turbine? - Aviation Stack Exchange aircraft systems - Is there a maximum airspeed to deploy a ram air turbine? - Aviation Stack Exchange](https://i.stack.imgur.com/tGcsX.jpg)
aircraft systems - Is there a maximum airspeed to deploy a ram air turbine? - Aviation Stack Exchange
![United Airlines 2012 Boeing 787-8 N45905 c/n 34825 RAT (Ram Air Turbine) San Francisco Airport 2020. | United airlines, Boeing 787, Airlines United Airlines 2012 Boeing 787-8 N45905 c/n 34825 RAT (Ram Air Turbine) San Francisco Airport 2020. | United airlines, Boeing 787, Airlines](https://i.pinimg.com/736x/c4/91/52/c4915260722e889b42b7f9e13f074721.jpg)
United Airlines 2012 Boeing 787-8 N45905 c/n 34825 RAT (Ram Air Turbine) San Francisco Airport 2020. | United airlines, Boeing 787, Airlines
![A350Blog on Twitter: "What is that in the belly fairing of #A350? The ram air turbine (RAT)deployed during landing https://t.co/GHSyiCbNbw https://t.co/guagTXfE5T" / Twitter A350Blog on Twitter: "What is that in the belly fairing of #A350? The ram air turbine (RAT)deployed during landing https://t.co/GHSyiCbNbw https://t.co/guagTXfE5T" / Twitter](https://pbs.twimg.com/media/CeWmJtuWsAAqca5.jpg)
A350Blog on Twitter: "What is that in the belly fairing of #A350? The ram air turbine (RAT)deployed during landing https://t.co/GHSyiCbNbw https://t.co/guagTXfE5T" / Twitter
AME Worlds - A330 RAM AIR TURBINE (RAT) SUPPLIES AN EMERGENCY SOURCE OF HYDRAULIC POWER TO OPERATE THE FLIGHT CONTROLS. THE RAT ALSO IS AN EMERGENCY SOURCE OF ELECTRIC POWER. THE RAT
![A350 XWB News: One of the first test already done in the A350 MSN1 test-flights has been the RAT emergency power system. A350 XWB News: One of the first test already done in the A350 MSN1 test-flights has been the RAT emergency power system.](http://1.bp.blogspot.com/-xqGL7jlXtyk/UdsPZU4LwlI/AAAAAAAAF1o/KJcZGFEjT3E/w1200-h630-p-k-no-nu/image.jpg)