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I think you are mistaking where the low level sensor is. The main tank is approximately 75 gallons. The low level sensor is set at around the 60 gallon level. The plane burns 1.5 to 2 gallons per minu ...

Not being an electronics guy my question is would latching relays utilizing the fuel sensors be a path to control the logic?

Food for further thought is that I will need another “controller” to manage the hydraulic system. It also used a PLC.

OK I found another sheet that shows the switches. I might have the wrong ones. This sheet shows 2TL1-1 used as the transfer switch. I have attached a copy that shows that and what is hooked up to t ...

I have a parts list to build the Fuel Computer, and a pinout list for the computer. No programming information.

The pinout list that shows where the wires go is somewhat cryptic. Each acronym is ...

Each tank has a Princeton capacitive sensor to display fuel qty in the cockpit. This is separate from the fuel transfer system

Yes it is much prettier than my hand sketch and accurate. Only comment is it’s a fuel circuit, not hydraulic. When/if this is done I need something similar to control the hydraulics, so this is lik ...

Your second thought is correct. This is a plane under construction. Viperjet ceased operations and I never got their fuel computer so no wiring is done, but I’m at that stage now.

I have all the ...

1. Yes I would want the high level sensor to close the LPFS to prevent overfilling. The tank is vented to atmosphere via a vent line exiting the bottom of the fuselage.

2. There is only want jet p ...

Now I see it

Pretty close. The main tank is vented. The fuel lines from the wing tanks go to the pump. The pump is not electrical, it is a jet pump that uses high pressure fuel from the engine to ...

Ok, but I don’t see a diagram

The airplane is a Viperjet, experimental. The fuel is Jet-A. There is a boost pump after the main tank to supply the fuel control and isn’t part of this system. This system is just to move fuel fr ...

Hi

My airplane project requires a fuel system manager, or AFC (Auto Fuel Computer). The System consists of 2 wing tanks and a center main tank. The engine feeds from the main tank only. It is a ...