Earlier today we went to view a scale model of the Northrop Grumman Global Hawk unmanned military aircraft.  When we first went into the airport we saw the model of the engine used (pictures at the end) and a representative from Rolls Royce was listing off specs which, naturally, made no sense to me at all.  🙂  After a short while we went through the airport to the tarmack and saw the full-scale model of the UAV.  Although just a model it was still cool to see.