I am planning to run my Os 140 RX in my first 2 m plane, with only 5 % nitro because in Colombia the nitro is very dificult to obtain and very expensive : 60 dollars 1 Galon 10%!!!

It is enough nitro? and what about the oil content: 15 % -18 % castor or sintetic?

Thanks for your help.

Jorge Lozano
Pattern flyer
[sm=confused.gif]