@elenasgrumpy

unfortunately in the air the smoke produced by a small glow engine is very lacking and you can hardly notice it. they just don't have the heat to vaporize the smoke oil so you end up with minimal smoke (like in the link you posted) and ALLOT of mess on the side of your plane. if you want smoke that you can see and smoke that sticks around a little bit a gasser (or a turbine) is the way to go and there is no comparison.........pic one is of the avistar w/ glow and Macs smoke......pic two is a gasser.

kc