Originally Posted by rocketman1988
Yeah, attacked was not the right word. What I was after was someone who had actually tested the two and documented the resulting differences. Like I said, Iím kind of a numbers guy...
I am the ultimate numbers guy
Data has no opinion.
There is no doubt a post of mine going back to about 2009 when I went down this road. We fitted the machined ports (probably from A/spruce) as the SafeAir may not have been on the market then.
The story goes like this.....flew the plane, it had a VERY slow TAS, 9 knots slow. Did a GPS box to verify it. Static error also meant a large altimetry error too, I think about 140 feet I calculated at the time.
I thought glue a vans rivet head on, see what happens. WOW...now I had the fastest RV10 in the world, but the GPS box proved the error swung the other way. I thought lets try a file and see if I can change them.....it worked a bit. Out of frustration I thought lets try a "fence" like some certified aircraft have. I had some aluminium welding rod handy, which I made into an arc and some epoxy glue. This was only temporary right!
Well that worked..... with less than 2 knots error at any test, it was a wash. Now ask me what I did with those temporary additions? :roll eyes: Yes still there.
Use whatever you like but a GPS box is the only way to test/correct for error. And yes I have had to help correct many others since with various methods.