Wankel-type rotary engine, conceived by Dr. Paul Moller and which won the 1991 NASA award for the best heat transfer treatment.

-This engine has two bodies and has 1300 cc of displacement, giving 150 HP.

“Moller RC”

-With only twelve inches in length and 85 pounds of weight it gave a weight / power ratio of almost two hp per pound.

From Appendix 6: Paul Moller of California made Wankel type rotary engines.

-One of them the 350 cc that gives 120 HP. It is the one shown below with a multi-blade propeller for the M-400 flying car that had four of them.

“Moller with the fan on the left” (PiP=pm)

-He has worked on a 700 cc version.

From Appendix 11: Today, the official company name is "Moller International Inc." and is dedicated to designing and manufacturing VTOL vehicles. The Wankel engines are now manufactured and marketed by Freedom Motors under the Rotapower trademark (see).