Founded in 2006 as the Avio Division of the company is dedicated to motorcycling. Owner Roberto Papetti, an aviation enthusiast, decides to build an aero engine.

-The RAP 2.5 A is an air-cooled, horizontally-opposed four cylinder boxer engine. Air cooled.

“Robby Moto Eng. RAP 2.5A”

"The same engine with intake manifold (CAD)"

-It is an engine indicated for VLA, etc.

From Appendix 10: The commercialized RAP 2.5 A, four-cylinder boxer.

“RAP 2.5 A aero engine”

-We are provided with a CAD drawing of a future 8-cylinder boxer engine, horizontally opposed on the basis of the previous one. Only in project.

“Robby 8-cylinder boxer”

From Appendix 12: In the main text, the Robby engines (Roberto Pappeti) appear in CAD design. Now we have a practical implementation as shown in the below photograph.

“Robby 4-cylinder boxer, RAP 2.51” (PeT)

-Two new CAD illustrations of the 2500 cc RAP 2.5A engine that gives 105 hp.

“Two variants on the same core”