Archive for July, 2007

Made (in) the shade

Wednesday, July 4th, 2007

Today I decided to install the Koger sunshade while I still have good access. The shade can be installed pretty easily on a flying airplane, but I figured why not do it now. Here's a shot taken while I was drilling and tapping the screw holes that attach the slide rail to the canopy frame:

The whole setup is very simple – just some fabric panels, wire ribs to give them some shape, and a sliding track to let you deploy or stow the shade as desired. Here's what it looks like fully unfurled:

Not visible is the thumbscrew that keeps it from sliding around on its own. When it's stowed, it folds up behind your head so it doesn't block the view:

I drilled and tapped the holes that help secure the little Velcro dots (located where the orange clamps are in a previous photo) but I'll wait to install them until after the canopy frame is painted.

Overall the sunshade took very little effort to install, and I know from experience that it really does help keep you from roasting under that big bubble when the sun is beating down. At $160 it's a little pricey for what you get, but then again I probably couldn't reproduce it myself for much less, even if I had the sewing skills.

Countersunk canopy

Wednesday, July 4th, 2007

After experimenting with various techniques using scrap plexiglass, I ended up using regular old three-flute cutters in a slow-turning electric drill to machine countersink the sliding portion of the canopy bubble. I countersunk slightly deeper than normal to leave room for the dimpled aluminum to "float" within the countersink as the plexiglass expands and contracts.

Doing all the holes took quite a while as I was going extra slow to try and avoid causing cracks. I still haven't drilled out any of the holes to make them oversize just yet. I also didn't touch the windshield yet, since I want to get the sliding canopy mostly done first.