John,
I had considered that, but it too has drawbacks.  Such as if one pump
fails, you have lost access to all the fuel in that wing.  If you keep
the Andair valve, I'm not so sure it will handle the higher pressures.
With the Andair valve, you have to be careful to switch the valve and
pump switches together.  Also, more pressurized lines in the cabin.  The
bleeder circuit just seemed a more elegant solution (to me).

If I were to put the pump at the wing tank, I would copy Tracy's design
to the letter.  

Mark    

-----Original Message-----
From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] On
Behalf Of John Slade
Sent: Wednesday, June 15, 2005 9:44 AM
To: Rotary motors in aircraft
Subject: [FlyRotary] Re: EFI Bleeder Circuit (Was Engine Not Starting)

> reprime itself in about 10 seconds.  Yes, under the right
circumstances,
> that could be the longest 10 seconds of my life.  This should only
> happen if you run a tank dry.  But if that happens, the procedure will
> be to switch to the other tank (should have fuel), then turn on the
> boost pump.  That should reduce the recovery time to something less
than
> 10 seconds.
Wouldn't this be a good argument for having a pump on each tank? This
way
the other one is already primed and will push the air out pronto - no?
John


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