We awoke the following morning to a cool, gray overcast. The dark, green grass was beaded with drops from a pre-dawn rainshower. Soon the Knutson farm came alive with activity. Bruce, a Northwest A320 captain, rolled down the driveway after turning off the grass runway in his 172. The throaty sound of a radial engine announced the arrival of Brian Anderson in his glowing red-and-white N3N. In between the introductions and the good-natured ribbing, we helped Tim roll the N3N out of the hangar. Since the 172 was also to be part of the day's activities, we rolled it out of the other hangar. Bruce would take command of that airplane, flying Tim's sister Heidi and Tim's son, Owen.