Brisbane control line club

[facthunter]

They wear out in the bore fairly quickly, But run well. Are they still made?  nev

[danny_galaga]

43 minutes ago, facthunter said:

They wear out in the bore fairly quickly, But run well. Are they still made?  nev

No. But many engines (like my own childhood engine) hardly got any run time on them before being jammed in the back of a drawer. So quite a few near new ones pop up. They are popular for stunt because there's a certain speed you need to fly, any improvements on power are wasted in this case.  There's a few Ruskie and Ukrainian engines around too. 

[rgmwa]

The OS Max35 was our most common engine in those days. I’ve got an unused OS40FSR still in its box that I bought about ten years ago.