this is. they can send information. they cack. airliners and military aircraft have engine health monitoring systems like this. now, for example, i flew an airplane during flight training that had a rolls-royce engine, the same the company that moves the 777 s engines, and the plane i flew also had an engine health monitoring system that would gather information during flight, and then once we landed the information was looked at by pointers maintainers. here s a picture of the monitoring system. this is on a rolls-royce engine, and this unit senses vibrations to pick up possible problems with engine components. that s one example. now, we don t know if that s the same type of system used on the 777, the missing 777 engines, and other systems on the aircraft have monitoring systems that gather information hour
the engine uses or that comes through this engine health monitoring system. one is the snapshots which the engine provides on takeoff and at climb and in the cruise. the second is if something s exceeded or gone wrong essentially during the flight, it triggers an immediate sort of temperatures too high or oil pressure s too low. that would also trigger a second set of messages. the third one is a summary of the entire flight. and obviously that takes place at the end of the flight when it s back on the ground. and if you imagine that this system transmits via satellite or via vhf radio and it was disabled for some reason, then is it possible at the end of a flight, say for example the aircraft actually did land somewhere and whoever was commandeering it decided to transmit via vhf, is it feasible that perhaps in that few moments