Ever hear of the refrigerator fallacy? There is no need for refrigerators because people have figured out other ways of storing and preserving food. Therefore refrigerators do not exist.

Don't be discouraged by the think-inside-th-box dinosaurs. Remember the physicists who published a careful study, about 1903, which proved that heavier than air human flight was impossible?

There has been considerable running of glowplug CL stunt engines on diesel fuel by South African fliers who are flying at high altitudes. Incidentally, I wonder if the 'carbon buildup' on the glow plug wouldn't burn off when you put the battery on. Anyway, it is all very interesting.

The one important point of a glow plug engine running very nicely on diesel fuel is that the compression ratio does not need to be all that high. This idea of needing 20 to 1 compression ratios is bogus. Anyone know what the compression ratio on a K&B 4011 is? Maybe 7 or 8 to one?