REFLECTOR: Fuel Consumption Performance

[Paula & John Schoorl]

Tom:

 

Craig and I fly an XL-5FG with a Cont. IO550N and MT propeller.  Generally
when we cruise at 9500 or 10500 MSL, we get fuel flows in the 10 to 11 gph
range running LOP.  We generally see TAS about 162-165 kts and we are
currently running without a nose wheel pant or nose strut fairing.  That's
usually worth a couple more knots.  I generally run at WOT and 2450 RPM.

 

Hope that helps

John Schoorl

Palmdale, CA

 

-----Original Message-----
From: reflector-bounces at tvbf.org [mailto:reflector-bounces at tvbf.org] On
Behalf Of Tom Tolton
Sent: Monday, August 03, 2009 4:29 PM
To: reflector at tvbf.org
Subject: REFLECTOR: Fuel Consumption Performance

 

I recently traveled to Oshkosh with a friend who owns a Velocity 173 with
fixed gear and a 200 HP fuel injected Lycoming.  He was able to reduce gas
consumption to 6.2 gallons per hour at 10500 feet and maintain a speed of
about 125 nm/hr using LOP techniques.  

 

I am building a XLFG -5 with constant speed propeller.  I am looking for
what one might expect in minimum gas consumption using LOP techniques at a
density altitude of 10000  feet.  I am considering the Lycoming IO540 260
and 300 HP, as well as, the 310 HP Continental 550N.  It has been suggested
that if I buy one of the more powerful 300 HP engines  I will just be able
to run with less throttle and bring the fuel consumption to a reasonable
level.

 

I would appreciate any comments / experience of the builders and owners with
a similar XLFG configuration.    

 

 

 

Tom Tolton

989-835-5828 (Home)

989-750-8567 (Cell)

 

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://www.tvbf.org/mailman/private/reflector/attachments/20090803/cf321baf/attachment.htm>