ADF is an avionics thingy, it tunes in to NDBs. Inquisitor, that is exactly my point, if we complain and say that Nimrods never get airborne fully serviceable and then quote these ACCEPTABLE faults, the bosses will never sit up and take notice. I call this diluting the important points with trivial ones. If they are getting airborne with non-acceptable faults, then people should speak up. They are not sneaks, this is their duty. If anyone says that you must do this because there is a war on, ask for the order in writing and see if they will put their head on the block. If it all goes wrong, people who say they will back you up will disappear into the shadows and you will be on your own. If blokes were under fire, taking hits and screaming for help, then you might be justified for going on 3 engines, otherwise don't sign it up.