REFLECTOR: Continental info

[Scott Baker]

Hello Reiff,
The 310-hp TCM IO-550N should deliver 200kts while burning about 15gph.  If you were to configure the fuel tanks to hold 80-gallons, this would provide enough fuel for taxi, runup, climb and a little over 5-hours of endurance at 75% power.
If you purchase a rebuilt engine, install (1) electronic ignition for a few extra horsepower.  Plan on a constant speed propeller - either from MT or Aero Composites.
You are going to love this engine in your XL.
Best,
Scott B.
  ----- Original Message ----- 
  From: Reiff Lorenz 
  To: Velocity Aircraft Owners and Builders list 
  Sent: Wednesday, May 18, 2011 4:29 PM
  Subject: Re: REFLECTOR: Continental info


   

  I'm considering a Continental IO-550N for an XL RG. What cruise speed do you see at the settings you quoted . . .?

   

                  Don - LOP, 12.5 GPH at 9,500 feet (fixed gear)

                  Bob -- 85% power LOP,  turbo (currently only at low altitudes)

   

  What are other XL RG owners getting for true airspeed cruise? My mission requires 200 kts true for 4 hours plus IFR reserves. Any recommendations for engine or performance mods?

   

  Thanks!

   

  Reiff Lorenz

   


   

  From: reflector-bounces at tvbf.org [mailto:reflector-bounces at tvbf.org] On Behalf Of Craig and Denise Woolston
  Sent: Tuesday, May 17, 2011 8:15 AM
  To: 'Velocity Aircraft Owners and Builders list'
  Subject: Re: REFLECTOR: Continental info

   

  Don-

   

    We built our plane before pictures were all electronic but I can scan some in a couple days if you more details.  We are running -N, going on 625 hours on XL-5FG.  We do not have any cooling air going to the engine mounted cooler, but we are plumbed to a forward nose mounted cooler.  We too try to keep our CHTs below 380.  We will occasionally see 400s on a cylinder or two after climbout on a hot day after a quick turn fuel stop.  Typical flight shows CHTs from 300 to 360 with 2 typically our hottest.  We typically see 180deg on the oil in the winter and 190-200 in the summer.  We run LOP exclusively, typically see 12.5 GPH at 9,500 feet and if you believe the electronics engine analyzer around 75% power.  Besides saving gas we have seen that ROP increases CHTs 30-60 and oil at least 20 degrees.  We are based out of Lancaster in California.  Because of all the dirt and dust out here we did spend the time to build an air intake with inline air filters, that's probably the only unique thing about our install.

   

  Craig

   

   


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  From: reflector-bounces at tvbf.org [mailto:reflector-bounces at tvbf.org] On Behalf Of Don Johnston
  Sent: Sunday, May 15, 2011 6:26 PM
  To: reflector at tvbf.org
  Subject: REFLECTOR: Continental info

   

  Looking for some info on Continental IO550-N installs.

  Specifically, pictures of cooling plenum installations and in particular, the oil cooler ducting.

  As for finished/flying aircraft, what kind of CHTs and oil temps are you seeing?

  Thanks!

  Don Johnston
   



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