Not every company had a bad second quarter in the recent aircraft delivery report by the General Aviation Manufacturers Association. Diamond went from 35 deliveries in the second quarter of 2010 to 50 in this most recent quarter. Pilatus went from 13 aircraft deliveries to 17. Piaggio Aero delivered two aircraft instead of just one in the second quarter of 2010, so that still counts. But most companies saw a decline in deliveries, and suprisingly it was single-engine piston aircraft joining with business jets to rack up the more dramatic second-quarter declines. In the United States, single-engine deliveries dropped from 210 in the second quarter of 2010 to 133 in the most recent quarter. If piston aircraft are the canaries in the coal mine, is the aviation economy once again on its death bed? My thought is to predict neither doom nor salvation. As I recall, we here at AOPA and many others proclaimed an end to the recession in mid-2009. That didn’t happen. It won’t be over until it’s over, and no one knows when that is, but this, too, shall pass. Chill.