X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from elasmtp-dupuy.atl.sa.earthlink.net ([209.86.89.62] verified) by logan.com (CommuniGate Pro SMTP 6.0.7) with ESMTP id 6633034 for lml@lancaironline.net; Tue, 10 Dec 2013 08:43:18 -0500 Received-SPF: none receiver=logan.com; client-ip=209.86.89.62; envelope-from=colyncase@earthlink.net DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=dk20050327; d=earthlink.net; b=b+axJKFsN1Yxr4zmCjrmJ8/qUgtqNtnMYUY7JP4Nz97v4/wAE/F3qhfUDZQvNOSW; h=Received:From:Mime-Version:Content-Type:Subject:Date:In-Reply-To:To:References:Message-Id:X-Mailer:X-ELNK-Trace:X-Originating-IP; Received: from [64.222.159.181] (helo=[192.168.1.24]) by elasmtp-dupuy.atl.sa.earthlink.net with esmtpa (Exim 4.67) (envelope-from ) id 1VqNaD-00007V-Qw for lml@lancaironline.net; Tue, 10 Dec 2013 08:42:42 -0500 From: Colyn Case Mime-Version: 1.0 (Apple Message framework v1085) Content-Type: multipart/alternative; boundary=Apple-Mail-249-353868251 Subject: Re: [LML] Gap Seals Date: Tue, 10 Dec 2013 08:42:41 -0500 In-Reply-To: To: "Lancair Mailing List" References: Message-Id: <998991B4-31B4-424F-844F-F312EBAF7200@earthlink.net> X-Mailer: Apple Mail (2.1085) X-ELNK-Trace: 63d5d3452847f8b1d6dd28457998182d7e972de0d01da94042f7d6bcce3f6f84114b3ce889803e67350badd9bab72f9c350badd9bab72f9c350badd9bab72f9c X-Originating-IP: 64.222.159.181 --Apple-Mail-249-353868251 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset=windows-1252 Doesn't it work out that your average on a windy day is lower than the = average on a calm day? (there's always some x-wind effect on each of the 4 headings) On Dec 9, 2013, at 5:10 PM, Douglas Brunner wrote: I have been interested in how much extra speed I can get out of my = Legacy using gap seals and other similar aerodynamic =93tricks=94. =20 Today I ran the plane in the =93Before=94 condition. Tomorrow, I intend = to put on gap seals and change out my cowl rings to a more aerodynamic = pair. =20 Here is today=92s result: =20 Legacy Speed Test =96 N241DB Heading Ground Speed Date 12/9/13 30 252 Alt 8,000 ft OAT 63 Deg. F 300 232 RPM 2,600 MAP 23.3 inches 210 221 Fuel Flow 18.5 GPH Peak EGT 1,275 Deg. F 120 242 EGT 1,175 Deg. F 236.75 kts =20 Any bets on the improvement with gap seals, etc? I am guessing 4 knots. =20 D. Brunner N241DB 700 hrs --Apple-Mail-249-353868251 Content-Transfer-Encoding: quoted-printable Content-Type: text/html; charset=windows-1252 Doesn't it work out that your average on a windy = day is lower than the average on a calm day?
(there's always some = x-wind effect on each of the 4 headings)

On Dec = 9, 2013, at 5:10 PM, Douglas Brunner wrote:

I have been interested in how = much extra speed I can get out of my Legacy using gap seals and other = similar aerodynamic =93tricks=94.
Today = I ran the plane in the =93Before=94 condition.  Tomorrow, I intend = to put on gap seals and change out my cowl rings to a more aerodynamic = pair.
Here = is today=92s result:
 
Legacy Speed Test =96 = N241DB
Heading
Ground Speed
Date = 12/9/13
30
63
Deg. F
232
RPM
221
Fuel = Flow
Peak = EGT
Deg. = F
242
EGT
Deg. = F
kts
Any = bets on the improvement with gap seals, etc?  I am guessing 4 = knots.
D. = Brunner