RE: OS 90FX with perry pump and/or carbutetro
Hi!
i have one installed in a design off O.Fremming from Norway its light but have no problem with performance or the engine what so ever!
i use a apc 14 x 8 a pipe i don't know what type is and the plane weigh ca 3,4 kg u can launch the plane vertical!
the engine is straight out off the box ..no pump and original carburetor , i was thinking about to install a set from the Os 61 Hanno but haven't don that , after 100 flights ...not one stop in the air!
is it any other problem than the vertical performance?