by pappas » Thu Nov 18, 2021 12:18 pm
Peter, I just re-read these and noticed your question. I have a shut-off valve at the tank drain, then a red cube fuel flow sender, then an aluminum tube to the firewall fitting. From the firewall to the aeroinjector is a flex-fuel line insulated with fire sleeve and 2000 degree sealant. I do not have the check valve in the tank vent. My tank vent runs across the top rear of the firewall and down to the left gear leg. In this incident, being upside-down, the fuel could only have leaked from the cap, (didn't happen), or from a cracked tank, (didn't happen). The tank vent was about the highest point in the system and couldn't leak there. So all in all, I am happy with the fuel tank design and construction.
I just can't express enough that almost anything is better than a stall spin. Learn to fly at the minimum controllable airspeed and practice it. It is cheap cuz you only burn about 2 gallons per hour to fly that slow with the Sonex.
Lou Pappas
Phoenix, AZ
RV-7A Flying (2024)
Waiex B Turbo (2016)
RV-8 (2009)
Waiex Legacy 3300 (2007)
Hiperlight SNS-9 (1991)
Falcon Ultralight (1989)