A Cessna 182 is sitting in the Cessna Aircraft exhibit space at Oshkosh, waiting for the Monday opening of EAA AirVenture 2012 and it is not all that mysterious. First of all, it says “Turbo” in bold black letters on the aircraft. So it is a turbo something. After that, experts in the installation of diesel engines say it is obviously an SMA diesel engine that will now be offered in Cessna 182s. However, we won’t know for sure until the masking tape and paper masks come off Monday. So act surprised, OK?