I've spent a great weekend at the airplane museum in Kunovice, Czech Republic. Each spring they ask volunteers to help them clean up the planes that stand outside. Poor birds get covered with dirt and moss, so they need a nice bubble bath. I had two days of climbing the planes, brushing and polishing them. I really enjoy this! I mean, you don't get to sit on top of MiG-21 - a supersonic jet fighter, and eat your breakfast. Or chill on the wing of Jak-11. :D Boy, they have amazing planes there! And I got to get into most of them! For the cleaning purpose, of course. :3 I also met some pilots that actually flew these planes years ago, they have so many stories to tell!
And this one is Aero L-29 Delfín from 1965, a Czechoslovakian jet trainer.