Message-Id: <5.1.0.14.2.20031216061319.03668fa0@pop.grc.nasa.gov>
Date: Tue, 16 Dec 2003 06:24:15 -0500
To: "Rotary motors in aircraft" <flyrotary@lancaironline.net>
From: Joseph Berki <joseph.berki@grc.nasa.gov>
Subject: Fuel system
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Thanks for the response on fuel system ideas.  Rusty explained the 
secondary rail and I hope I got this right.  Fuel is delivered at pressure 
to primary injector rail then to secondary rail then to regulator which 
feeds the return line back to the tank.  My thinking was that i intended to 
connect both strake tanks together with a tunnel and a sump in the center 
where fuel would be pumped to the rail system.  Even though the tanks are 
connected I was not sure how quickly they would level if fuel was returned 
to only one tank.  I was thinking of splitting the rail system into two and 
returning to both tanks ie forward rotor to port tank and rear rotor to 
starboard tank.  If the fuel could level on all conditions then the fuel 
could be returned to one tank.  To implement this you would need two 
primary rails two secondary rails and two regulators.  I may not need to 
split the rail system.

Joe Berki
Limo EZ