There were three crankshafts at the corner points of the triangle
That was the General Electric "Deltic", developed from the Jumo 205 concept.
In the 1930īs the Junkers "Jumo 205", a 6-cylinder, vertical, opposed-piston supercharged 2-stroke Diesel aero-engine, was used in scheduled transatlantic air service between Europe and South America
Sixty-five years later several lightwieght diesel Aero-engines are currently under developement, one with no wrist-pins in the pistons - now work that one out!!
