1983: Sterner Ultracraft, PO Box 811, Sterling Heights, Michigan 48078, USA.
In 2014, Robert T. Sterner Sr was the owner of Sterner Aircraft and the Skywalker.
UL builder
1983: Sterner Ultracraft, PO Box 811, Sterling Heights, Michigan 48078, USA.
In 2014, Robert T. Sterner Sr was the owner of Sterner Aircraft and the Skywalker.
UL builder