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Message-ID: <4ACBB89B.3030400@gmail.com>
Date: Tue, 06 Oct 2009 16:37:31 -0500
From: Dave <david.staten@gmail.com>
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To: Rotary motors in aircraft <flyrotary@lancaironline.net>
Subject: Re: [FlyRotary] Re: Fuel System
References: <list-3875748@logan.com>
In-Reply-To: <list-3875748@logan.com>
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In a Velocity or Cozy built to plans, there is no fuel selector or check 
valve between tanks and the sump.

If there is fuel in the main tanks, the sump is always full. Fuel 
returning to the sump will displace fuel into the main tanks.. the tank 
should NEVER pressurize.


Bob White wrote:
> Hi Ed,
>
> Where does the fuel go after the header tank fills up?
>
> Bob W.
>
> On Mon, 5 Oct 2009 21:03:39 -0400
> "Ed Anderson" <eanderson@carolina.rr.com> wrote:
>
>   
>> Hi Steve,
>>
>>  
>>
>> Just for comparison -my fuel system is very similar in concept.  The
>> principal conceptual difference is I have a header tank for return of my
>> fuel from injectors mounted on the fire wall and is ½ pint in capacity.  The
>> theory is not much fuel to have to get rid of if it gets hot. The fuel flow
>> into the engine through the injectors continuously pulls cool fuel from wing
>> tanks.
>>
>>  
>>
>>  8 gallons of hot fuel (if it ever got hot) might take a while to burn down
>> to the point the cool incoming fuel does some good.
>>
>>  
>>
>> This size  goes counter to “tradition” on size of header tanks but is more
>> in line with the “returnless” systems on most of today’s automobiles.
>>
>>  
>>
>> FWIW
>>
>>  
>>
>> Ed
>>
>>  
>>
>> Ed Anderson
>>
>> Rv-6A N494BW Rotary Powered
>>
>> Matthews, NC
>>
>> eanderson@carolina.rr.com
>>
>>  <http://www.andersonee.com> http://www.andersonee.com
>>
>>  <http://www.dmack.net/mazda/index.html>
>> http://www.dmack.net/mazda/index.html
>>
>> http://www.flyrotary.com/
>>
>>  <http://members.cox.net/rogersda/rotary/configs.htm>
>> http://members.cox.net/rogersda/rotary/configs.htm#N494BW
>>
>> http://www.rotaryaviation.com/Rotorhead%20Truth.htm
>> <http://www.dmack.net/mazda/index.html> 
>>
>>   _____  
>>
>> From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] On
>> Behalf Of stevei@carey.asn.au
>> Sent: Monday, October 05, 2009 7:35 PM
>> To: Rotary motors in aircraft
>> Subject: [FlyRotary] Fuel System
>>
>>  
>>
>> Hi All
>>
>> We are trying to make a decision re: fuel system.
>> I’ve attached a PDF with design and questions etc.
>> Could you please pull it to pieces, make recommendations?
>> Steve Thomas can you comment also from the GSIIRG perspective?
>>
>> Thanks 
>>
>> Steve Izett
>> Perth Western Australia
>> Building Glasair SIIRG Renesis 4 Port RD1C EC2 EM3 
>>
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