I built myself a Tupolev-28 Fiddler in my spare time over the past couple of years. The Soviet Tu-28, a relic of the Cold War was the largest and heaviest fighter/interceptor ever built. I constructed it by bashing an old FMS Mirage 4000 back fuselage and wings. The front end is made primarily of soda bottles. The maiden flight was yesterday August 10th, is shown in the video below. I kept the flight short and did not retract the wheels. It was too hot and buggy, but it flew better than anticipated.
Specs:
Power system: Powerfun 70 mm 6S power unit
Esc: 60 amp ( to be upgraded to 70 amp)
Battery: 6S 1800 mah
HK mini retracts
https://www.youtube.com/watch?v=KNce-sTICuQ