FT-60 Red Cube Relocation for -14A with EXP119

[georgemohr]

Here's the excerpt from the EI Red Cube manual


Mechanical Interface:

If the aircraft has a fuel pump(s), the flow transducer MUST be installed downstream of the last fuel pump. Installing the transducer upstream of the fuel pump(s) can cause vapor lock and jumpy/inaccurate readings. The Red Cube FT-60 has 1/4" NPT ports. Apply thread sealant to fittings, assemble and torque fittings to 8-10 ft. Lbs., DO NOT EXCEED a torque of 12 ft. Lbs. The Red Cube FT-60 should NOT be installed with the wires pointing DOWN (the best situation is with wires pointing UP). Also, the fuel line on the outlet port should not drop down after exiting the transducer. Both of these configurations can trap bubbles in the transducer causing jumpy readings. The inlet port, outlet port and flow direction are marked on the top of the Red Cube FT-60.

 

[TS Flightlines]

Yep---thats what it says.
Tom

 

[georgemohr]

Ok, here's the final result. Seems nice to me!

 

[Pilot135pd]

So you decided to hold it from the cube instead of the hoses. It looks better that way so hopefully you can prove the manufacturer wrong.

 

[TS Flightlines]

"Here's the excerpt from the EI Red Cube manual:
Mechanical Interface:
If the aircraft has a fuel pump(s), the flow transducer MUST be installed downstream of the last fuel pump. Installing the transducer upstream of the fuel pump(s) can cause vapor lock and jumpy/inaccurate readings. "

I'd refer you to the original RV10 plans install with the transducer in the tunnel UPSTREAM from the mechanical pump. ALOT of 10s flying with this configuration with no issues. Yes, we feel that readings would be more accurate if the fuel were pushed through the transducer instead or pulled. Lots of ways to do this install as has been proven.

Tom