Yup... It Flies!

The little jet actually does just what it is supposed to do - and it looks good doing it!

We've now made three flights in the airplane I am calling "Loki" (The trickster from the Nordic sagas), and each one has been interesting. It had ben over three years since I last flew a Subsonex, and since there really is no way to get current other than to fly one, it was interesting to get re-acquainted with the flying qualities. On our first flight, we discovered that we need to re-rig the ruddervators to provide more "down" elevator, so we kept that flight short. The second and third flights proved that we got that right, and that the airplane is going to be fun, fun, fun! Continue reading "Yup... It Flies!"

Power to the Panel!

subsonex-panel-test

When you're elbow deep in wiring, it is motivating once in awhile to clear all of the debris, check all the connections, and apply some voltage to the input side of the airplane, just to watch things light up! (Note all of those caveats - applying power with dangling power and ground wires can lead to grief when electrons flow where they aren't supposed to - test smart!) Continue reading "Power to the Panel!"

Getting Fuelish

Fuel flows in from the right, through the filter, the shut-off valve, and the red cube - then on to the engine.

One of the interesting things about the Subsonex kit is that it is easy to skip around from one task to another as you're building. If I get tired of attaching piano hinges for control surfaces for instance, I can jump over to installing the oxygen system. Exhausted by working down in a footwell to install a ruder pedal? Time to go work on the fuel system! Continue reading "Getting Fuelish"

Easy Hole Spacing

rivet spacing drawing

One of the curses of modern CAD technology is that designers can draw something up, then have the computer dimension it for them on the drawing - very, very precisely. In the case of the drawings I am using on my current project, the drawings tend to dimension to the nearest 1/64th of an inch if you find a line of rivets that has essentially been evenly spaced between two end points, you'll find it a bit tedious to measure each hole's location in 64ths of an inch from an end point. Continue reading "Easy Hole Spacing"

And we're off!

Subsonex Jet ruddervator clecoed

Yes--the new kit is here! Our Subsonex project got underway just this weekend, starting with a complete inventory (of a very complete kit). With all of the bits and pieces stored away in ways that they can be found, I opened the plans to a reasonable place to start, and pulled out the parts for the stabilizers. My first impression was "wow - this is amazing". My second impression was "Wow - this is going to go together fast!" All parts are match-hole construction - that means that you can grab a handful of silver clecos and fasten ribs to spars, and skins to ribs, all without pulling out a drill. Continue reading "And we're off!"