X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Sender: To: lml@lancaironline.net Date: Fri, 18 Oct 2013 07:56:13 -0400 Message-ID: X-Original-Return-Path: Received: from nm22-vm2.bullet.mail.ne1.yahoo.com ([98.138.91.210] verified) by logan.com (CommuniGate Pro SMTP 6.0.7) with ESMTPS id 6545520 for lml@lancaironline.net; Fri, 18 Oct 2013 06:29:42 -0400 Received-SPF: none receiver=logan.com; client-ip=98.138.91.210; envelope-from=casey.gary@yahoo.com Received: from [98.138.90.52] by nm22.bullet.mail.ne1.yahoo.com with NNFMP; 18 Oct 2013 10:29:06 -0000 Received: from [98.138.89.252] by tm5.bullet.mail.ne1.yahoo.com with NNFMP; 18 Oct 2013 10:29:06 -0000 Received: from [127.0.0.1] by omp1044.mail.ne1.yahoo.com with NNFMP; 18 Oct 2013 10:29:06 -0000 X-Yahoo-Newman-Property: ymail-3 X-Yahoo-Newman-Id: 934751.14475.bm@omp1044.mail.ne1.yahoo.com Received: (qmail 70490 invoked by uid 60001); 18 Oct 2013 10:29:04 -0000 DomainKey-Signature:a=rsa-sha1; q=dns; c=nofws; s=s1024; d=yahoo.com; h=X-YMail-OSG:Received:X-Rocket-MIMEInfo:X-Mailer:Message-ID:Date:From:Reply-To:Subject:To:MIME-Version:Content-Type; b=y/1ssiyVzI8BVMNluh0cRxI2gZL+3eulaI3cTWnm16OdME4HS7J1Hjj1I5x50HQPSQIMdKHqfrYnuMPVOnscdV5LV4Xr+uVbKmqBvMd4d+k4aGFYtmA2jS+/BlpLKU+ub0PJ0AIPb5awXmt6ytxo9EtTIYmfsVVxyM1Vxsk8BwQ=; X-YMail-OSG: vKEnFkkVM1noRzMVo3FnRqXK2MNhIYg53YZiKREK9u_sniI 53r07oDHZ8QrNDNKT5bY4VqTIKHomhu70KJICiXq1K_QXYshlnvn0ZazWf7k LINyo4d2GnlApsEbtGnGkhn6ZjPWTdL_l0e36Ytvpzj99KiXRaJ4G9wOi28G _WAWpGn5Fh1Sgrk94yGn2j3wd2KqDuGyavyfN.0ftkmoNncttaH.PAfyiLxF t8G1iBaTplswG4vWLzjI2rfzhtane0h9dMWVFdhqOlhf0dBkhw0T0DgY7PKo u_28.MoQ4cyRazVojuLrYX6tmE6Uu9FJFSMrp6_XntJKjBJZH2etuABTeb7Z SZkJ7Uj_2xiTxW8VvdfViDrLtYTbc1KXe6ATRWuZxE0oEGgcthvceGDuu0at rky8iuq5jaxzj80AEfh5rb51.suKrc6lL3xKjVwlsEdcISOfyV0jms4Xdfgj 5jVjPpFhqTaADsKYiAlkYNCZWnL._15lrCWkh900AjVdDnC9iUutSED9A175 JKUr3rWEs0OGpi89MO7IBeyzX0wcdmLuOgMKYgAIf8Pyhi_sKNud4Z6jv48F FYet_POMg43rSmWJWG.m8sv8- Received: from [97.92.63.83] by web120101.mail.ne1.yahoo.com via HTTP; Fri, 18 Oct 2013 03:29:04 PDT X-Rocket-MIMEInfo: 002.001,SSBjZXJ0YWlubHkgY29uY3VyIHdpdGggdGhlIGNvbW1lbnRzIGJlbG93LiDCoEkgaW5zdGFsbGVkIHRoZW0gb24gbXkgRVMgYWZ0ZXIgZG9pbmcgYW4gQS9CIHRlc3QuIMKgVGhleSBpbmNyZWFzZWQgdGhlICJmZWV0LW9mZi10aGUtcnVkZGVyLXBlZGFsIiBzdGFiaWxpdHkgYnkgYWJvdXQgMzAlLiDCoEkgbWVhc3VyZWQgYSBkcm9wIGluIGNydWlzZSBzcGVlZCBvZiBhYm91dCAyIGtub3RzLiDCoFBhaW5mdWwsIGJ1dCBJJ20gc3RpbGwgZ2xhZCBJIGRpZCBpdC4gwqBUaGVyZSBzZWVtZWQgdG8gYmUgbm8gZGkBMAEBAQE- X-Mailer: YahooMailWebService/0.8.160.587 X-Original-Message-ID: <1382092144.58783.YahooMailNeo@web120101.mail.ne1.yahoo.com> X-Original-Date: Fri, 18 Oct 2013 03:29:04 -0700 (PDT) From: Gary Casey Reply-To: Gary Casey Subject: Yaw X-Original-To: Lancair Mailing List MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="1072509510-838904054-1382092144=:58783" --1072509510-838904054-1382092144=:58783 Content-Type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: quoted-printable I certainly concur with the comments below. =A0I installed them on my ES af= ter doing an A/B test. =A0They increased the "feet-off-the-rudder-pedal" st= ability by about 30%. =A0I measured a drop in cruise speed of about 2 knots= . =A0Painful, but I'm still glad I did it. =A0There seemed to be no differe= nce in low speed pitch trim. =A0And I agree that the alignment of the strak= es with the local airflow could be better. =A0If I were doing it again I wo= uld carefully evaluate the local airflow, probably with oil drops, and take= a wedge-shaped slice out between the strakes, most likely toeing them out = by maybe 5 degrees. =A0That said, I have evaluated the airflow with oil (ev= entually the engine blowby oil will reach the strakes) and I don't see any = real problem. =A0Maybe I'm imagining a problem when there isn't one. =A0I w= as told by someone (professional test pilot) who has flown all types of Lan= cairs that on a IVPT they are "absolutely required," on a IV they are "essential" and on an ES they are "nice." =A0FWIW=0AGary Casey=0A=0ABill,= =0A=0Adid you have the opportunity to do a before/after speed test relative= to =3D=0Athose strakes?=0AI can vouch that they are very effective at impr= oving yaw stability.=A0 =3D=0AHowever if you look at them on the airplane o= ne wonders if they are =3D=0Alined up with the airflow at that point on the= fuselage.=0A=0AColyn=0A=0AOn Oct 16, 2013, at 10:16 PM, William A. Hogarty= wrote:=0A=0AHello Dico:=0A=3D20=0AAs I recall, I ordered the strakes direc= tly from Mike Custard about 10 =3D=0Ayears ago.=A0 They were the cheapest o= ption I had ever purchased for my =3D=0Aplane (less than $ 300) and also th= e easiest to install.=0A=3D20=0AI had just started the painting process on = my plane, when I heard about =3D=0Athe strakes, so I stopped painting and w= aited for the strakes to arrive. =3D=0AAs I recall, it took about 2 days to= install, start to paint.=0A=3D20=0AI have some photos of the installation = process, if you would like to see =3D=0Athem.=A0 I don't have Mikes=0Aaddre= ss or contact info, but Im sure the folks at lancair might.=A0 As you =3D= =0Acan tell, I am a real advocate=0Aof his product.=0A=3D20=0AKeep up the p= hotography.=0A=3D20=0ARegards, Bill Hogarty=0A --1072509510-838904054-1382092144=:58783 Content-Type: text/html; charset=iso-8859-1 Content-Transfer-Encoding: quoted-printable
I certainly concur with the comments below.  I inst= alled them on my ES after doing an A/B test.  They increased the "feet= -off-the-rudder-pedal" stability by about 30%.  I measured a drop in c= ruise speed of about 2 knots.  Painful, but I'm still glad I did it. &= nbsp;There seemed to be no difference in low speed pitch trim.  And I = agree that the alignment of the strakes with the local airflow could be bet= ter.  If I were doing it again I would carefully evaluate the local ai= rflow, probably with oil drops, and take a wedge-shaped slice out between t= he strakes, most likely toeing them out by maybe 5 degrees.  That said= , I have evaluated the airflow with oil (eventually the engine blowby oil w= ill reach the strakes) and I don't see any real problem.  Maybe I'm imagining a problem when there isn't one.  I was told by someone = (professional test pilot) who has flown all types of Lancairs that on a IVP= T they are "absolutely required," on a IV they are "essential" and on an ES= they are "nice."  FWIW
Gary Casey

Bill,

did you have the = opportunity to do a before/after speed test relative to =3D
those strakes?
I can vouch that they are= very effective at improving yaw stability.  =3D
However if you look at them on the airplane one wonders if they are =3D=
lined up with the airflow at that point on the fu= selage.

Colyn

O= n Oct 16, 2013, at 10:16 PM, William A. Hogarty wrote:

Hello Dico:
=3D20
As I recall, I ordered the strakes d= irectly from Mike Custard about 10 =3D
years ago.&= nbsp; They were the cheapest option I had ever purchased for my =3D<= br style=3D"font-family: 'Helvetica Neue', 'Segoe UI', Helvetica, Arial, 'L= ucida Grande', sans-serif; font-size: 13px;">plane (less than $ 300) and also the easiest to install.<= /span>
=3D20
<= span style=3D"font-family: 'Helvetica Neue', 'Segoe UI', Helvetica, Arial, = 'Lucida Grande', sans-serif; font-size: 13px;">I had just started the paint= ing process on my plane, when I heard about =3D
th= e strakes, so I stopped painting and waited for the strakes to arrive. =3D<= /span>
As I recall, it took about 2 days to install, start to paint.<= /span>
=3D20
I have some photos = of the installation process, if you would like to see =3D
them.  I don't have Mikes
address or conta= ct info, but Im sure the folks at lancair might.  As you =3Dcan tell, I am a real advocate
of = his product.
=3D20
Keep up= the photography.
=3D20
Regards, = Bill Hogarty
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