The main differences with the production F-18 were the wing shape; similar to that of the F-5, its lighter weight; because of the absence of weapons (except for two mock wingtip sidewinders)and avionics, and its engines; GE YJ101s instead of F404s. The French pilots were stunned by the plane's features and by its unbelievable manoeuvrability; the engines were so powerful that on touchdown you had to quickly shut one engine off, instead of what the brakes would overheat trying to slow the plane down. Vice-admiral Debary (ret.) comments : the flights went perfectly, and we had a chase F-5, flown by Hank Chouteau, Northrop chief test pilot. I had the satisfaction of really impressing him during a flight when I saw him coming from 4 o'clock. I said to myself "now's the time to see what the plane is really worth", and broke him up, full AB and stick to the stomach…until I found myself in his 6 o'clock incredibly easily. It was great to hear him ask where I was, and to tell him "in your 6 o'clock, in firing position" ! Picture of the F-18L seen in flight with Commander Michel Debray at controls, shot by the wingman, Hank Chouteau, Northrop Test Pilot Team chief from his F5. (©VA Michel Debray)During the course of this flight while performing a loop without the afterburners and without pulling too hard, I found myself in a touchy situation at the top of the loop but with my speed decreasing fast, down to 60 knots (very slow for this kind of plane).