Hi guys, I did a search but couldn’t find the answer. Where are the fuel tanks located and

how does the fuel get from 1 tank to the other? Does 1 tank run low and then starts

to get it to the other or do they both mix together equally as it runs?

 

.....

 

Excellent description. The right hand pump is a 'Jet pump', common in aviation fuel systems, it operates in total electrical failure situations because in aircraft it is powered by manifold vacuum, or air pressure bleed from the compressor stage of a jet engine. If the engine runs, the jet pump keeps it running, by supplying fuel to a header tank that mechanical fuel controls feed from, Excess fuel overflows back to the main tanks.

 

Check out post 17.

https://www.corvetteforum.com/forums...gas-gauge.html

 

This might help a bit;

 

In turbine aircraft the primary jet pump is usually powered by excess high pressure fuel from the engine driven pump that supplies fuel to the engine nozzles. Some aircraft use additional transfer or scavenge jet pumps that are usually powered by output of the primary jet pump or an electric boost pump.

 

we are talking about corvettes. Not airplanes.

 

I stand corrected in your case, but the helicopter fuel systems that I worked on used N-1 compressor air to power the jet pump system, (2) one in the front of each front fuel tank, and (2) air driven pumps near the electric pumps in the sumps. The high pressure air spun a set of small blades to power a sump pump that sent low volume-high pressure fuel forward to the jet pumps. It sounds complex, but I never saw a failure. The main electrical pumps (5), provide low pressure, high volume fuel to the small header in the fuel control, which then raised the fuel pressure to the high pressure level needed by the fuel control. I changed out many electrical pumps. All of the tanks were inter-connected at the bottom so that fuel could flow to lower quantity fuel tanks. This last is similar to the C 5 system. The C 5 won't crash if the electric pump fails, but the engine will NOT run. The helicopter fuel system is fail-safe, as long as the engine is not turned off, it will run. I have made it back to base with electrical failures of the 28 volt system. One last thing, if the electric fuel pump system failure was due to loss of 28 volts, the engine could not be turned off by the pilot, I had to do it manually at the engine by removing a bolt and physically moving the throttle arm to the low position, probably why I have hearing loss in my right ear (turbine noise).