RE: Thrust line, Datum line, Center line?
Mode One,
The more I think I know the more I find out I don't really, really know. Sooooo I would hazard a guess that the center line is the line from where all incidences are measured................and the thrust line is the center line of the propeller shaft or the turboshaft in a jet. The datum line.................wait a minute.....what is a datum?
larry