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Date: Thu, 7 Sep 2000 02:47:37 EDT
From: GBFitz@aol.com
To: lancair.list@olsusa.com
Subject: LNC2 IFR Range?
Message-ID: <39.9ceb2ac.26e89409@aol.com>
OK, here's one for you people who file IFR in the LNC2:
When an alternate is required, what is the maximum distance you can file from
origin to destination, not including the distance to the alternate, and what
is your total fuel capacity? My calculations indicate that the standard fuel
capacity (header tank, wing tanks, no extended tanks) should give about 500
miles, with an alternate 100 miles from the destination, allowing for 45
minutes of fuel remaining. Is this in the ballpark?
700 nautical miles is more in the ballpark. See below.
Gary
My 320 carries 43 gal of fuel. It burns 8 gal/hr.
Taking off 6 gal for 45 minutes reserve at normal cruse power leaves 37 gal.
An alternate .6 hours away would be 180 kts * .6 = 108 nautical miles
and use .6 hours * 8 gal/hr = 4.8 gal.
Take this away and get 37 - 4.8 = 32.2 gal.
32.2 gal / 8 gal/hr * 180 kts = 724.5 nautical miles.
If headwinds are forecast (or found in flight) a closer airport will need to be found for refueling.
I have flown my 320 over 800 VFR nautical miles several times. When both of my wings are dry, I start getting nervous and find an airport.
Did you know that the U.S. contains about 12,000 airports? How far apart are they?
1,000 * 2,000 = 2,000,000 sq mls
2,000,000 sq mls / 12,000 = 167 sq mls per apt
square root( 167 ) = 13 mls
Therefore there is an airport approximately every 13 mls in the United States.
--
Lorn H. Olsen, US MidTel, Corp.
248-771-1010, LNC2, N31161, PTK, Michigan
lorn@mich.com
LML website: http://www.olsusa.com/Users/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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