Aeronautical engineers have long experimented with the two-cycle engine for airplanes. In such an engine the four strokes of the pistons1) intake, 2) compression, 3) explosion, 4) exhaust are reduced to 1) compression 2) explosion. Fuel is forced into and out of the cylinders by a pump. Complex lubrication is dispensed with by mixing oil with the gasoline. That advantage largely accounted for the failure of most experiments to date: the burned oil left heavy carbon deposits. Last week a new, light two-cycle engine was described by Dick Roberts, plump aviation editor of the Toledo Blade. It had...
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