[1] In 1918 Zerbe arrived in Fayetteville, Arkansas to begin work on passenger aircraft for local businessmen.

The aircraft, completed in 1919, was a positive staggered equal span quadruplane with double cambered[2] louvered main wings.

Equipped with no tailplane or ailerons, the machine was controlled using "ganged" or linkage connected wings with variable-incidence.

[2] The passenger cabin was made of plywood and fully enclosed with wide stance landing gear attached.

[citation needed] The Air Sedan was piloted by Tom Flannery on its first and only flight in 1921 at the Washington County Fairgrounds in Fayetteville.