My morning walk takes me past Hillsboro Airport, Portland, Oregon (HIO), and today I saw a rather strange plane landing. It was a small commuter-size plane (6 passenger windows on each side), with a single surprisingly large propeller on the nose. While landing it sounded much more like a jet than a prop. The tail was "T" shaped and I thought I saw a jet exhaust at the back of the fuselage.
Was I imagining this, or does such a craft exist?
Sorry I didn't get a picture.