0 · Jim Halls and Christine Kilgore stand by a Challenger ultralight plane at the Oak Hills Flying Club just south of Stirling. The Challenger is one of two models sold through their business. · Left - Jim Halls works on the engine of a Highlander ultralight plane in his workshop in Tweed. Halls and his wife Christine Kilgore sell the planes throughout Eastern Ontario from their business just south of Stirling. Photos by Bill Tremblay