It rained. Pretty much all day. So, I ran some errands, including picking up some resistors for the tach feed on the plane... it goes crazy above about 5400rpm, so I spoke to the manufacturer, and they suggested a resistor, so I went and got some because the tach goes crazy above ~5400rpm.
Anyway, I soldered bits of wire to the resistor, then covered everything in heat shrink. We headed out to the airfield to install it to find that the big tub o' connectors is gone. Bugger. Nothing else to do, so we came home again.