September 6, 2004

Tonight, I finished up connecting the pitot/static lines to the instruments behind the panel, and routed the tubing down through to the opening inthe fuselage where it goes into the wing. Once I’d done that, I tested the pitot part of it. I heatshrunk a length of heatshring (duh) and rolled it up and clamped it at an indicated 200 knots. Then watched to see how long it took to drop off. A long time…..

Here’s the first pic… time was 1:25pm

And the second pic… Time was 1:54 pm, and I’ve lost 10 knots.

For giggles, I left it running almost the whole time at the hangar… Now it’s 3:12pm and I’m down a total of 35 knots. Not too shabby, and well within spec… Speaking of which, I need to look it up in the RV archives. I know I’m well within, because I was talking to Mike and he mentioned the spec was surprisingly loose.