RE: Successfully not using a UAT?
David
I just looked out some photos of a small FEJ Rafale I fitted out originally for a Jetcat P60
As you can see it has a pleated paper filter in the tank, no UAT and a very simple installation. This was done in March 08. The engine was changed to a K80 and has flown for about 100 flights. I cannot recall there being a flameout with it.
Hope this helps
John