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<< Lancair Builders' Mail List >>
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I am proud to report that my IV-P has crossed the 700 hour mark and is still
going strong. During those 700 hours I have had to make two precautionary
landings, one for a cracked induction runner (my fault) and one for a loose
intake rocker arm (also my fault). The Barrett Performance Aircraft built
TIO-540 is still showing 76-78/80 on compression and still runs strong.
Over the six years since first flight I have rebuilt the brakes, fuel pump,
mags, scavenge pump and exhaust system. I have changed the oil and filters
15 times and am on my 19th case of engine oil. I have burned over 12,500
gallons of fuel and traveled over 6 times the circumference of the earth.
Average time for each flight is right about 1 hour. Longest flight was 3
hours and 28 minutes and the shortest was 85 seconds.
This fall we painted the floor in the hanger and had to leave the plane
outside overnight. It rained and I didn't get the chance to fly for a couple
of days. Apparently this caused some cylinder corrosion and my oil
consumption went from 1 qt in 25 hours to 1 qt in 4 hours. I knew that one
thing to try to fix this is to run high BMEPs for 20 minutes or so to cause
the rings to "get friendly" with the cylinders again. Well, if you are going
to run high power settings for a while, it might as well be in a
race....Right? So I thought that I'd pack my two sons in to the plane and go
to the Lancair Fly-in with the plan to run the Redmond 100 for "Maintenance"
reasons. When I explained this to my long suffering wife I was greeted with
the "Do you really expect me to believe this?" look. You know the one. Well,
that's my story and I'm stickin' to it.
In the Redmond race I ran flat out 37.2 in MP, 2700 RPM and 35 GPH fuel flow
at 5000' to 5500' MSL. At these settings the engine produces approximately
370 Hp (as demonstrated on Barrett's SAE calibrated dyno). Oil temperature
and CHT were 194 and 385 respectfully. TIT was 1400. The race this year was
from a standing start any my average speed was 303 MPH. Correcting for the
standing start, my average speed in-flight was ~275 KTAS. Not bad for an old
bird. Did I mention that my two sons were with me in the race?
For those of you still building, take heart. There is a light at the end of
the tunnel and it isn't a train. The rewards are many. I use N170BR mostly
for business and it gives me instant credibility with clients. It is my
"Flying Resume" and allows me to leave the office at 8:00 and be in a
meeting at 11:30 that happens to be 820 miles away. Way too cool.
Now, step away form the computer and go work on your airplane. I'm talking
to you too Marv ;)
Regards
Brent Regan
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LML website: http://www.olsusa.com/mkaye/maillist.html
LML Builders' Bookstore: http://www.buildersbooks.com/lancair
Please send your photos and drawings to marvkaye@olsusa.com.
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