Guys, I want to interject someting here. Vance can tell you this as

well. Solly the gent who

purchased Kis and Pulsar had a crash caused by exactly what this

thread

is talking about. He

plumbed the return into one of his wing tanks on his new Super

Pulsar.

He went up to fly with both

tanks about 1/2 full. The flight was only to be about 15 minutes

"around

the patch". Due to the

volume of fuel transfered he ran one tank dry, ON FINAL! He wasn't

able

to switch tanks, (if he

even though to). He didn't quite make the runway and crunched his

new

plane up. He was unhurt

fortunatly.  While this is certainly pilot error casued by lack of

understanding of how much fuel

was recirculated, the point is it could happen to you. Get one of

the

andair or similar fuel

switching systems that plumb the fuel back to the tank being drawn

from.

The possibility to over

look the fuel transfer is simply to much to risk. The frequent pilot

might remember to switch but

someone coming back from some time off is the most likely to forget,

and

the least likely to

recover from a problem. Best to avoid this solvable problem. Bill

Jepson

I second that motion Bill. The Andair is expensive but well worth it

in my

estimation.

Paul Lamar

Just go back into a header tank, what can go wrong with that ? It is the
simplest, lightest and most fool proof system.

John

We are worrried about heat build up John.

Paul Lamar.

John Gibbons wrote:

Went flying in the NSI Glastar again on Sunday. This is the one with the
aluminum header tank top center on the firewall. I asked the builder if he
could remember the size of the tank and he said it was just over 1 gallon. I
flew 2.5 hours with mostly circuits but I was asked to go and search for a
couple of divers that were lost a few mile from the airport. Spent that time
in slowish flight, 70 k, 65% or so power. Temps came up 10-15 degrees during
the search. Immediately upon landing I shut down, jumped out and put my hand
on the header tank. It was definately cool to the touch, I'd guess 50 deg F.
Fuel flow into the header tank from the mains was 13.9 gallons on the
totaliser. Simple and effective.
John

Good data point John thanks.

Paul Lamar
 
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