Quote Originally Posted by Shadowrider View Post
Went flying to IBEX lakebed early in the morning. Wind was dead calm. I was flying low across the lakebed in perfectly smooth air and my TAS showed 102MPH. Ground speed showed 112mph. G3X showed 8mph tailwind? I know groundspeed was correct, but I am wondering if my Pitot system has a small leak? I got reading and I guess 1/4 air line press-in connectors often leak. Thinking maybe the press-in connector I used is leaking slightly. Vans forum many say don't use the press convectors because they leak? Avionics guy is coming next week for the Global and I will have to do a pitot static test.
Dustin I would not trust the push connectors at a low PSI. We have hundreds of these on our truck fleet & they often leak at under 40 psi & often leak more with age & vibration they work great at higher psi 100 & above so the lower the psi the more they leak. Sometimes you can stop a leak with a small amount of AGS Sil-Glyde on the hose.