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RE: Europa-List: 914 fuel flows

Subject: RE: Europa-List: 914 fuel flows
From: Simon Smith <jodel@nildram.co.uk>
Date: Tue, 6 Jun 2006 19:09:47
Surely, if the MP gauge is suspect the Airbox sensor/TCU would also have 
to
be in error by the same amount?  I initially queried the figures because 
I
assumed (and we all know how dangerous that can be!) that the Rotax book
fuel flows ought to be accurate.

Simon

-----Original Message-----
From: owner-europa-list-server@matronics.com
[mailto:owner-europa-list-server@matronics.com] On Behalf Of Erich 
Trombley
Sent: 06 June 2006 18:07
Cc: kandshill2@sbcglobal.net
Subject: [Norton AntiSpam] Europa-List: 914 fuel flows


Ken,

Knowing your fuel system as I do, I concur the problem is not with the 
fuel
flow sensor.

I would verify that your manifold pressure gage is properly calibrated.
This would explain the excessive fuel flow per inches of mercury.

I believe for each fuel flow you have listed the actual H.P. you are
producing is actually greater than that corresponding to the M.P. 
listed.  

Erich Trombley
N28ET Classic Mono 914


From: KENNETH D HILL <
<http://webmaila.juno.com/webmail/8?folder=Inbox&msgNum=00000MG0&bloc
k=1&msg
Nature=all&msgStatus=all&count=1149612409#> 
kandshill2@sbcglobal.net>
Subject: RE: Europa-List: [ Ken Hill ] : New Email List Photo Share
Available!

Hi Simon,
   
  I wish they were.  I recently put over 1000 miles on N214KS and the 
fuel 
required
to fill the tank agreed to within .1/.2 gallons of what the gauge said I
used.  Plugs look normal.
   
  Ken

Simon Smith <
<http://webmaila.juno.com/webmail/8?folder=Inbox&msgNum=00000MG0&bloc
k=1&msg
Nature=all&msgStatus=all&count=1149612409#> jodel@nildram.co.uk> 
wrote:
      I think you figures might be a little suspect.  The Rotax 914
Operators 
manual
give Take off performance as 5800rpm, 39.9 inHG and 8.7 us gph.  Max
continuous
as 5500rpm, 35.4 inHG and 7.2 us gph. (ref pages 8-2 & 10-1)
  Are you sure that your fuel flowe sensor is correctly calibrated?
   
  Are these airspeeds IAS or TAS?
   
  Simon


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