Airdale Sportplane and Supply doesn't produce landing gear, and at one time the company produced the Avid Magnum as a kit aircraft.
Airdale Sportplane and Supply (also called the Airdale Flyer Company) was an American aircraft manufacturer, founded by Brett McKinney and based in Rhinelander, Wisconsin. The company also produces an improved landing gear set for the Avid Mk IV design, called Bushgear. 
