I haven’t worked on the plane for about 2 weeks now. My wife (Rose) and I had a great trip to Germany to run the Berlin Marathon. I was almost able to meet my goal of running a sub 4 hour Marathon. I came in at 4:00:19 so missed it by 20 seconds. Oh well we have Chicago Marathon in a few weeks so maybe that might be the one. My mother and younger brother Jason went as well. My brother speaks a bit of German so that helped quite a bit, of course we were all completely lost when we got to Prague. We also went to Dresden and Heidelberg on our way to and from Prague. Unfortunately we didn’t have time to visit Peter V. and Pascal (2 other Sling builders) on the trip, but maybe we will try to do another Europe trip next year to run another Marathon and if they still want us to come we will be there. The other excitement was that I separated my AC in my shoulder the day we were leaving for Germany. So in addition to last minute packing we had to do an ER run. The good news was the doctor said that running wouldn’t make it any worse, the bad news was it was extremely painful to run. Of course being the stubborn person I am I ran the Marathon anyways and got a PR to boot.
Well back to airplane stuff. Today I went through and torqued all the AN4 brake line fittings. I’m thinking that I want to put in the brake fluid now rather then after I get it painted just to make sure I don’t have any leaks, etc. The brake lines that run down the back of the gear can be easily pulled away and masked off so they shouldn’t get in the way for painting. I need to read up a bit on how fill the lines with fluid. I watched a YouTube video and it seemed fairly straight forward. Basically you pump the fluid up from the fitting on the bottom of the caliper up through the cylinders on the pedals until it comes out of the reservoir on the firewall. There may be a bleeder valve that needs to be opened on the cylinders so I still need to look into that.
The other good news is that the box of upholstery (3 large cow hides and 25 ft of carpet) I sent to TAF in South Africa finally arrived there. It sat in the FedEx warehouse for almost a week because no one thought to call me to find out who was going to pay the duties on it, even though I put that I would pay them on the customs form. The shipping was outrageous. I figured it would be a few hundred dollars, but it turned out to be around $1000 to ship it to TAF. I probably should have just done the upholstery here in the US, but it will be nice to have the real TAF made seats and I want to support them in their business as well.
I purchased a set of crow foot wrenches to use on my torque wrench so I could torque the AN fittings. Since the crow foot wrench adds a bit of length to the torque wrench you need to do a little calculating to determine the exact setting of the torque value on the wrench. It’s a fairly simple calculation and I even found a site that has a calculator that figures it out for you.
The above screen grabs are from the Engineer’s Edge Website. I needed to torque to 11 lb-ft (132 lb-in) so after putting in the necessary distances it came out to 10.25 lb-ft (123 lb-in) and that is what the torque wrench was set to. Really 11 and 10.25 are pretty close so I probably didn’t even have to worry about the calculations, but what the heck.