X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Sender: To: lml@lancaironline.net Date: Tue, 10 Dec 2013 09:56:36 -0500 Message-ID: X-Original-Return-Path: Received: from mail-ie0-f178.google.com ([209.85.223.178] verified) by logan.com (CommuniGate Pro SMTP 6.0.7) with ESMTPS id 6633098 for lml@lancaironline.net; Tue, 10 Dec 2013 09:18:44 -0500 Received-SPF: pass receiver=logan.com; client-ip=209.85.223.178; envelope-from=toddlong1@gmail.com Received: by mail-ie0-f178.google.com with SMTP id lx4so8329349iec.23 for ; Tue, 10 Dec 2013 06:18:09 -0800 (PST) X-Received: by 10.43.0.202 with SMTP id nn10mr1307767icb.54.1386685088875; Tue, 10 Dec 2013 06:18:08 -0800 (PST) X-Original-Return-Path: Received: from [192.168.100.5] (c-24-245-32-70.hsd1.mn.comcast.net. [24.245.32.70]) by mx.google.com with ESMTPSA id x5sm3284775iga.6.2013.12.10.06.18.02 for (version=TLSv1 cipher=ECDHE-RSA-RC4-SHA bits=128/128); Tue, 10 Dec 2013 06:18:07 -0800 (PST) Subject: Re: [LML] Re: Gap Seals References: From: Todd Long Content-Type: multipart/alternative; boundary=Apple-Mail-53A6438A-B9F0-4257-B3BF-8ECE38332642 X-Mailer: iPhone Mail (11B554a) In-Reply-To: X-Original-Message-Id: X-Original-Date: Tue, 10 Dec 2013 08:17:57 -0600 X-Original-To: Lancair Mailing List Content-Transfer-Encoding: 7bit Mime-Version: 1.0 (1.0) --Apple-Mail-53A6438A-B9F0-4257-B3BF-8ECE38332642 Content-Type: text/plain; charset=windows-1251 Content-Transfer-Encoding: quoted-printable Which gap seals are you using?=20 Typing and grammar errors courtesy of Siri and the iPhone. > On Dec 10, 2013, at 7:42, wrote: >=20 > Doug, > =20 > I put gap seals on my 4P =96 I think I saw an improvement of about 2 kts. M= y airspeed varies a lot with humidity temperature and other thing that I don= =92t know. Last week when I ran rich of peak I could see 200kts IAS at 23000= at -7F > =20 > Earlier in the year I was complaining about losing the gap seals when I ge= t too far into the yellow arc or close to red line. I claimed that gap seals= do not hold up on speeds that high. I lost one every 20 hrs or so. > =20 > I have to take this back. I got an additional hint from Fred Moreno that s= ignificantly improved the life time of my gap seals: Make sure that all surf= aces are 100% clean and fat free =96 I used aceton =96 then the important pa= rt: use a heat gun to completely dry out all the solvent from the pores befo= re applying the seals =96 this was the part that I didn=92t do and that made= a difference =96 the solvent might be still there even if it looks dry. > =20 > Ralf > =20 > From: Douglas Brunner [mailto:douglasbrunner@earthlink.net]=20 > Sent: Monday, December 09, 2013 5:11 PM > To: lml@lancaironline.net > Subject: Gap Seals > =20 > I have been interested in how much extra speed I can get out of my Legacy u= sing gap seals and other similar aerodynamic =93tricks=94. > =20 > Today I ran the plane in the =93Before=94 condition. Tomorrow, I intend t= o 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 > > > -- > For archives and unsub http://mail.lancaironline.net:81/lists/lml/List.htm= l --Apple-Mail-53A6438A-B9F0-4257-B3BF-8ECE38332642 Content-Type: text/html; charset=utf-8 Content-Transfer-Encoding: quoted-printable
Which gap seals are you using? 
Typing and grammar errors courtesy of Siri and the iPhone.
<= br>On Dec 10, 2013, at 7:42, <bronnenmeier@GROBSYSTEMS.COM> wrote:

Doug,

 

I put gap seals on my 4P =E2=80=93 I thi= nk I saw an improvement of about 2 kts. My airspeed varies a lot with humidi= ty temperature and other thing that I don=E2=80=99t know. Last week when I r= an rich of peak I could see 200kts IAS at 23000 at -7F

=

 

Earlier in the year I was c= omplaining about losing the gap seals when I get too far into the yellow arc= or close to red line. I claimed that gap seals do not hold up on speeds tha= t high. I lost one every 20 hrs or so.

 

I have to take this back. I got an additio= nal hint from Fred Moreno that significantly improved the life time of my ga= p seals: Make sure that all surfaces are 100% clean and fat free =E2=80=93 I= used aceton =E2=80=93 then the important part: use a heat gun to completely= dry out all the solvent from the pores before applying the seals =E2=80=93 t= his was the part that I didn=E2=80=99t do and that made a difference =E2=80=93= the solvent might be still there even if it looks dry.

 

Ralf

 

From: Douglas Brunner [mailto:= douglasbrunner@earthlink.net]
Sent: Monday, December 09, 2013= 5:11 PM
To: lml@lancairo= nline.net
Subject: Gap Seals

=

 

I have been interested in how much extr= a speed I can get out of my Legacy using gap seals and other similar aerodyn= amic =E2=80=9Ctricks=E2=80=9D.

<= span style=3D"font-size:11.0pt;font-family:"Calibri","sans-se= rif";color:#1F497D"> 

= Today I ran the plane in the =E2=80=9CBefore=E2=80= =9D condition.  Tomorrow, I intend to put on gap seals and change out m= y cowl rings to a more aerodynamic pair.

 

Here is today=E2=80=99s result:

 

2,600

MAP=

= =

Legacy Speed Tes= t =E2=80=93 N241DB

Heading

Ground Speed<= /span>

Date 12/9/13

30

252

<= span style=3D"font-family:"Calibri","sans-serif";color:b= lack">Alt

8,000

ft

<= /td>

OA= T

63

<= span style=3D"font-size:11.0pt;font-family:"Calibri","sans-se= rif";color:black">Deg. F

300

232

<= /td>

RPM

<= p class=3D"MsoNormal" align=3D"right" style=3D"text-align:right">23.3=

inches

210

<= /td>

221

Fuel Flow

18.5

GPH<= /span>

Peak EGT

1,275

Deg. F=

120

=

242

<= /td>

EG= T

1,175

Deg. F

236.75<= /p>

kts

 

Any bets on the improvement wit= h gap seals, etc?  I am guessing 4 knots.

 

D. Brunner

N241DB 700 hrs

<IMG_0531 (Medium).jpg>
<IMG_0532 (Medium).jpg>
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