Advances in aviation technology surprise me. Some days it feels like we should all be flying around in flying cars or spaceships. Other days I am fascinated by the aircraft that do fly. Thanks to my friend, Jeff, for sending me a link to this video from the 1930s of a modified Travel Air with a steam engine. Just think... a good number of general aviation planes could be flying around in the skies today with steam engines! I wonder if someone will replicate this early biplane and fly on steam again!?