I originally put the factory exhaust that comes with the engine kit on my Velocity. Worked well, but after I had been flying it for awhile and was looking ways to make it go faster, it seemed like this exhaust might not be optimal. The factory exhaust exits out of the cowl normal to the air […]
Build log
Phase I flight testing complete
I’m afraid I haven’t been very good at updating my blog now that I’m flying. Phase I flight testing was completed on Thanksgiving Day, 2012. I just needed 0.2hrs to complete it, so I went up around the pattern a few times just to dot I the and cross the T. The next day, I […]
Finishing Phase I flight testing
I was out this morning and put in an hour. That makes it 38.2hr in Phase I, so a couple more hours and I’m free from my box. Everything has been going well. The only minor issue I was battling over the last couple weeks is the camber of the pilot-side main gear wheel. After […]
20th test flight
We’ll I’m just over 20hrs now, half way. I have most of the major issues taken care off. The engine is running cool, no oil leaks, oil vent ported to exhaust. This flight I took off the sparrow strainer and trim at high speed was much better. Before, at 160kts, I ran out of trim […]
13th test flight
In attempt to correct high CHT in #3 cylinder, I went at the cooling plenum again. This time, opening up the area fore of cylinder 3 trying to make the turn down from the runner from the NACA to cylinder #3 a little more gradual. Before going at it, the plenum was up tight along […]
$300 video
Wouldn’t it be cool, I thought, to mount the GoPro camera on the nose gear. That way, it would retract and deploy with the gear…great idea, right? Unfortunately, it seems the GoPro camera case wasn’t designed for the impact of nose touchdown. You’ll see on one of the videos of a touch-and-go, that the camera […]
8/9/10th test flights
On the 7th flight, I continued to see high CHT’s this time #2, so I thought I might have a fuel distribution problem. I took all the injectors out and cleaned them, then switched them around until I measured equal fuel flow thru all cylinders (injectors out of the cylinders and attached to the lines […]
A few pictures before first flight
I just realized that I don’t have any pictures of my completed Velocity posted here. Here’s a few I took before I moved hangars. This was shortly before first flight.
Repositioned ADAHRS
This is something that I did before first flight, but I’m just getting around to posting info about it now. On the first few taxi tests, my Skyview started complaining that it was seeing a mismatch between the heading the GPS was indicating and the magnetic heading reading it was getting from the ADARHS unit. […]
Improved roll trim
The stock roll trim system has a tendency to slip. Some have found that putting some belt dressing will improve things, but I have found the springs that are supplied are too weak, too (can’t put stronger ones due to slippage issues). So, I thought I’d take a crack at building a better roll trim. […]