It's been a few years so I do not recall the exact geometry I used.  I believe it is different than the VDO sender bends.  I ended up making a cardboard mock up of the fuel tanks shape and adjusting the geometry accordingly.

Bill. I mounted the SW senders in the sides of my fuel tanks.  I had to come up with the geometry through some trial and error but generally they work fine.

Yes, I did a test on the bench with all my components with everything it relative height positions and again with everything installed in the fuselage. I was concerned about how well the fuel would flow through the electric Facet fuel pump with it not powered, but it was just fine.

Bill, I have an electric fuel pump installed on my Continental O-200A equipped CH750 STOL. I only use it when flying at high angles of attack (during stall maneuvers). Don’t really use it for any other normal flight conditions. 

Bill,

I have an O-200 powered 750 with an engine driven fuel pump.  Lack of an electric fuel pump has not been an issue.

JJ

Bill,

My engine has an engine driven fuel pump and I have an electric back up. I have never neede the electric pump.

Hi Bill -

Joe Reheiser here.  I now recall where we were stationed together.  You were my first squadron commander, of the 345 TAS at Yokota AB, Japan.  Those were great years!  I had the good fortune to return to Yokota much later in my career as the 5AF/CV and flew the Herk.  They were H models at that time, and they are now converting or have already converted to the J model.  

All the best,

Joe 

Hi Bill -

Yes, I was in the USAF (31 years) and was a Herk driver.  Where were we stationed together?

All the best,

Joe