An air-cooled, 5-cylinder, revolver engine has documentation on file at the NASM. Doc. (BN-500000-01).

From Appendix A4/6: This brand is mentioned in the main text because of the information in the Documentation Center of the Smithsonian Museum in Washington.

-Well, we have received information regarding the axial engine that is actually called American Nedoma-Najder.

-It is from 1924, and had 5 cylinders in revolver position.

-Clearly it has a plate to attach a propeller.

"American Nedoma-Najder Barrel Type Engine"