Friday December 23rd, 2005|
Dimpled Aft Top Skins; Static System
Today I decided it was time to deburr and dimple the two aft top skins. There's no reason not too. I'm probably going to rivet on the aft-most skin next week sometime. I believe the quick-build kits come with this skin riveted so it's obviously possible to do everything necessary back there with it on. I'm not sure if I'm going to run conduit in the aft fuse or just run the wires and tie-wrap them together. Lots of options here.
After finishing up the two aft skins I decided to go on to the static system. If I'm going to rivet on the aft skin I definately need to take care of this. You can see here the routing location called for in the plans. Well, I take that back, there are locations specified for the aft fuselage but I'm not sure about the baggage area. The static kit simply states that the tubing is 'usually ran under the longerons'. Some people run them behind the baggage walls, which makes sense to me if you can avoid chaffing in that area.
I always have the option of running it under my baggage floors since I made them completely removeable.
Here's one of the static ports. There is another one on exact opposite side of the fuselage. These things are basically baffle pop-rivets and you have to drive the mandrel out of the center of the rivet. This is a tough task...here's what worked for me:
1) After installing the rivet, tap on the mandrel from the *inside* of the fuselage. The mandrel should back up just a little bit.
2) I then then used a nail punch, but you could use whatever, and sort of enlarged the shaft of the pop rivet. After you have enlarged the shaft, the mandrel should pop out pretty easily.
Here's a blurry picture of the static tubing running over the appropriate bulkhead (sorry, I forget the number). The empty barb on the 'T' fitting will get the line that runs up the instrument panel. By the way: this was a FULL day of work, with only about an hour break while I helped Jaime with some stuff around the house.