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After having my 10-550 rebuilt in Denver with Dick Demars several years ago. He said not to cross the Rockies until after a hard break in because he wanted the engine to have high power (actually full power and very rich). he suggested a round trip to Omaha before heading going to high altitude where power would be considerably less. I have to say that it was the best engine ever. Ran more like a sewing machine.
On Thu, May 12, 2011 at 6:26 AM, Karen Farnsworth <farnsworth@charter.net> wrote:
I’m not sure too many people use lean of peak to do an engine break-in though. Also his direction of flight tends to have headwinds so it would take more fuel than the flight you referenced. He did not go at high altitude.
My Legacy has a TSIO-550, so I am really not up to speed on what fuel usage would be at 10,000’, doing an engine break-in rich of peak; but I suspect that that his actual range (tanks dry), under the listed parameters is his actual impact point.
Lynn
At high altitude, a stock Legacy with IO-550 should burn approximately 10.5 gallons/hour using "lean-of-peak" technique. In this example, actual flight time was over four hours with 21 gallons remaining (66-gallon capacity). Please see: http://flightaware.com/live/flight/N767EM
-----Original Message-----
From: Karen Farnsworth <farnsworth@charter.net>
To: lml <lml@lancaironline.net>
Sent: Tue, May 10, 2011 11:22 am
Subject: [LML] Re: N23PH Crash
Flight Aware shows 3 hours 50 min, not 3 hours 15 min. That is a long way on 60 gallons..
If, as has been reported, the engine was new, I would think that it was still being broken in. This would lead me to thing that fuel flow would be on the high side; thus reducing range.
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