15 years old T-Rex 700 Nitro with old O.S.91 HZ-R and CGY 760 R

[@GrimesRic]

geiler heli! cool geflogen. hätte auch mal bock auf was altes

[@wildedaveable]

Nice! Those barrel rolls are insane. very skilled. About to get a concept 30 and 3 others. got to get on my RF Trainer.
Great Video
Just curious, is it running rich or is that from castor oil??

[@MrHelijupp]

The smoke comes from the oil, the engine runs on the slightly rich side

[@shanehall934]

I don't know if I should be impressed or scared?

[@MrHelijupp]

😂