The main landing gear was purchased from Grove Aircraft. Because of the new airfoil (one change continues to ripple downstream), the main landing gear brackets made by Grove to attach the landing gear struts to the wing spars required a plate to be welded on the backside to reach from the top to bottom spar cap (made for the RAF 48 airfoil). Welding done by Titan Welding. Brackets are made of steel. Sanded and primed brackets to stop corrosion.