The fuselage for the Precursor started life as a 1963 model Schweizer 1-26A.
The resulting aircraft is registered with the Federal Aviation Administration in the Experimental - Racing - Amateur Built - Exhibition category.
[1][2] The Precursor is of all-metal construction and features a fixed monowheel landing gear, with a small tail caster.
[1] PIlot reports indicate that the Precursor climbs well in thermals and exhibits stable handling.
[1] Gehrlein eventually sold the one-of-a-kind design to Les Stoner of Houston, Texas and today it is owned by Gehrlein's son, Rod, and based in Erie, Pennsylvania.