[QUOTE=Sand_Pebble;165227]For the vessel I was working on with the C280’s, lack of air pressure would mean electronic shutting down of both main engines resulting in lose of both shaft generators. The emergency stop damper to the turbo inlets shared the same air supply as the starting solenoid. When air pressure was low, we would get an alarm stating, “Low Starting Air Pressure”, then “Low Operating Air Pressure” & then the engines would stop with “Emergency Stop Failure” alarm. So if both ships air compressors failed, only the auxiliary generators & E-Gen would start to provide power to the vessel.
Obviously we made contingency plans of what to do in case of both air compressor failure that included running the engines in E-Mode or running a crossover air pipe from the dry bulk compressor system to the ships air system. After a year of requesting it we received a portable air compressor with a small tank. Once during a 10 day tow the the dipper stick on one of the air compressors crank shaft flung off causing the compressor bearing to lock up due to lack of lubrication. The captain & I felt a lot better with that small compressor on board.[/QUOTE]
So, I still don’t get this, it sounds like it violates some class automation principles, but maybe I’m misreading. Loss of air would mean electronic shutting down? On only one engine or both? Sensor reading from common pipe to both start air motors? How did the electronic shutdown actuate the stopping of engine if not the air inlet (which didn’t have air)?