That's great news! The Aero L-39C Albatros is one of the most performant L-39 variants there is!  :) It can do some really sharp turns for an oldie. Pilots who still fly these aircrafts have to have a minimum of .3 G Force resistance. Did you black out at anytime? One of my friends went on an L-39 before, went really fast. Did he activate the after-burner effect? You'll know because it makes a huge 'bang' sound.  :)