The "Chief Oshkosh" racer was a mid-winged taildragger with undersized wheels and tires without brakes.

In 1936 the plane was fitted with a Menasco CS-4 363 cubic inch engine and multiple leaf spring gear.

In 1937, a single piece steel landing gear was used, becoming the standard on Cessna aircraft of the future.

Brennand used Wittman's trick of tapping the accelerometer with his knuckles to get the desired reading.

"Chief Oshkosh" resides in the National Air and Space Museum in Washington, D.C.[7] Data from Sport AviationGeneral characteristics Performance