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Date: Tue, 14 Jun 2005 23:01:08 -0500
From: Jim Sower <canarder@frontiernet.net>
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To: Rotary motors in aircraft <flyrotary@lancaironline.net>
Subject: Re: [FlyRotary] Re: fuel pump mounting ( fuel system architecture)
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How dated is that data?  EAA keeps stuff around FOREVER.  I've heard 
(key word) that places like CA and NY and places that can't make EPA 
numbers (and have those awkward vapor return fittings on gas pump 
nozzles?) are legislating vapor pressures within a couple of points of 
Avgas (6?) instead of the 16 - 20 common in the 90s. 
Don't know where to get reliable, current data any more ... Jim S.

Bobby J. Hughes wrote:

> They also have an AD that says not to run auto fuel with temps in the
>90's or above 12K. They reference EAA fuel testing as well as their own
>data.
>
>Bobby
>
>-----Original Message-----
>From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] On
>Behalf Of jesse farr
>Sent: Tuesday, June 14, 2005 2:52 PM
>To: Rotary motors in aircraft
>Subject: [FlyRotary] Re: fuel pump mounting ( fuel system architecture)
>
>I agrees with that, unless you are flying that bench around with that
>particular fuel up to 15,000' or so on hot and cool days. All that shows
>is it slurps up the fuel from a 4' height on that bench on that day,
>time and temperature. Some of the soob folks constantly check the vapor
>pressure of their mogas to be sure they have some form of consistency.
>Might not be a bad idea. At least, if you got gas just jumping up and
>down to percolate off, you would kinda know you are not going to get it
>picked up much at all.
>jofarr, soddy tn
>
>----- Original Message ----- From: "John Slade" <sladerj@bellsouth.net>
>  
>
>>>If the pump will prime with a 4 foot negative head that sounds good 
>>>to me.
>>>      
>>>
>
>  
>
>>But this only proves it works on the bench under atmospheric pressure 
>>and ambient temperature.
>>    
>>
>
>
>  
>
>>> Homepage:  http://www.flyrotary.com/
>>> Archive:   http://lancaironline.net/lists/flyrotary/List.html
>>>      
>>>
>
>
>  
>
>>> Homepage:  http://www.flyrotary.com/
>>> Archive:   http://lancaironline.net/lists/flyrotary/List.html
>>>      
>>>
>
>
>  
>