Explorer Aircraft of Jasper, Texas, which showed its proof-of-concept aircraft, configured as a 500T with a single Pratt & Whitney Canada PT6-135B, at Oshkosh, is still looking for investment money, according to Don Joseph, president. With the economy picking up and venture capital firms starting to invest in promising businesses, Joseph said he’s seeing increasing interest, but nothing firm yet. He estimates it will take about two-and-a-half years to bring the Explorer to certification, once funding is secured.