Not a huge amount of progress today. Terry wanted to do a major reorganization of the home office/library/computer room, which had a long domino effect. The new office layout is a big improvement, so it was worth the time.

Late this afternoon I finally got back at the oil cooler. I fabricated some pieces of sheet aluminum to close off the bottom of the mount, and modified the sliding air door track to take a longer door.

I also puzzled out a concept of how I will control the door position. Initially, I wanted to use a simple push-pull knob, but all the ones I can find on the market have less than 3.5 inches of travel, and I need about 5 inches. I had crazy thoughts about some sort of bellcrank to get 5 inches of travel with 3.375 inches of knob travel, but I didn't like the extra complication, or the fact that the tension/compression on the Bowden cable would be greater than the force required to move the door. Now I'm thinking about making some sort of long lever in the cockpit (perhaps on the inboard side of the left landing gear box) with a pivot on the bottom end, and handle of the top, and the Bowden cable attached in a place to give 5 inches of travel.