The po-2 was a soviet two seat trainer and light bomber over 40,000 were built and were surprisingly difficult to shoot down (strange for a plane with a top speed compared to ww1 bombers!) they were even used as night bombers in Vietnam and Korea where they were flown by women pilots and gunners (the allies called them night witches) once they had dropped their bombs they used the extreme range of the plane to make nucience raids (that radial sounds like an old desil tractor and its amplified and they flew low) I have seen one run about 10ft from me and fly and honestly you never forget that noise! Anyway just thought it would be an interesting plane to build! It's a little slow and can't turn that well but it's more agile that the fairy swordfish! Next will be the gloster gladiator and yes I love biplanes!