The SM-6000 was a high-wing braced monoplane with room for a pilot and a cabin for ten passengers.

It was powered by three 215 hp (160 kW) Lycoming R-680 engines strut-mounted one each side above the main landing gear units and one in the nose.

A number of variants were built mainly with improved interiors.

In 1932 the Model U Airliner was produced which had low-set stub wings with additional two engines mounted on each wing complementing the existing nose mounted center engine.

One is owned and operated by Mid America Flight Museum in Mount Pleasant, TX, the other by Kermit Weeks and is maintained in airworthy condition at Fantasy of Flight in Polk City, Florida.