RV10 ER Tanks

[KatanaPilot]

Another RV-10ER takes to the skies. No issues with the tanks, but discovered a problem with my duplex fuel valve. The issue was probably there before, but I had not flown enough in Phase I and only had a single sender in the standard tanks - so the problem was not really noticeable.

I flew the airplane for an hour on the left tank only and discovered fuel was burning equally from both tanks. After landing, I filled the left tank and within 45 minutes of sitting on the ground, both tanks had equalized. I verified this with the gauges and visually with a dipstick.

So the Condition Inspection started two weeks early, the fuel valve is off to the UK and I'm awaiting a replacement.

Definitely a want, not a need, but it's nice to have very accurate fuel readings from zero to full.

[Richard Connell]

Congrats Krea!
Faulty valve is an unusual failure.
Good advertising for accurate gauges!
Cheers

[KatanaPilot]

Originally Posted by Richard Connell

Congrats Krea!
Faulty valve is an unusual failure.
Good advertising for accurate gauges!
Cheers

Thanks Richard. Your posts were very helpful and a motivation to get this large, but straightforward project done. Your modification of the SW floats will definitely help others who want full range fuel quantity, but not the expense of the CiES senders.

Valve manufacturer confirmed defective valve today. They could not explain the failure, though. New valve is on the way, so hopefully back in the air soon.

Again, kudos to Ken Krueger for an outstanding kit with superb instructions. Highly recommended for anyone building a 10 or 14.