Chevy43 and Stewart, Very well put I think the idea of powering planes is to go out and have fun flying whether glow , gas, diesel. and now electrics there too. If you just look at the
diesel engines, conversions, you have of course, PAW 2 generations of Burfords, Davis,Clutton, MVVS. and assorted other makers in Europe , the bottom line if you add this up it is in
excess of 200 years of experince and they all sell or recommend ether based fuel. for the "new guy on the blocK' the basic diesel idea is running a variety of prop sizes by just adjusting the compression and needle no glow plugs, batteries just flip and go and of course a long way on little fuel, quieter some of you out there can of course, machine ,make heads, modify engines but this not the average modeler If you follow the directions ( and a lot of folks do not) learning curve is simple. Some months ago I had davis ribbing me that I have forgotten how to run a glow engine, I have had glows quit in flight NEVER a diesel , One of my little cubs had an OS26 4stk neat littlle engine, quiet easy starter but after
some dead sticks, fiddled with, plugs tank height fuel replaced it with my MVVS 15 diesel and no more issues .

PAWs and Davis conversions are a great way to start for the new diesel modleler , and the chances of the glow owner are quite good that he has an engine that an be converted with a diesel head for 30 to 60$ he is there more or less, and yes a PAW great idea for a simple easy classic too martin