X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Sender: To: lml@lancaironline.net Date: Sat, 14 Apr 2012 00:01:40 -0400 Message-ID: X-Original-Return-Path: Received: from vms173015pub.verizon.net ([206.46.173.15] verified) by logan.com (CommuniGate Pro SMTP 5.4.4) with ESMTP id 5478417 for lml@lancaironline.net; Thu, 12 Apr 2012 07:24:51 -0400 Received-SPF: pass receiver=logan.com; client-ip=206.46.173.15; envelope-from=n5zq@verizon.net Received: from p6520y ([unknown] [173.72.178.191]) by vms173015.mailsrvcs.net (Sun Java(tm) System Messaging Server 7u2-7.02 32bit (built Apr 16 2009)) with ESMTPA id <0M2D00CRP6C44950@vms173015.mailsrvcs.net> for lml@lancaironline.net; Thu, 12 Apr 2012 06:24:05 -0500 (CDT) X-Original-Message-id: From: "Bill Harrelson" X-Original-To: "Lancair Mailing List" References: In-reply-to: Subject: Re: [LML] LN2 reflex position X-Original-Date: Thu, 12 Apr 2012 07:24:04 -0400 MIME-version: 1.0 Content-type: multipart/alternative; boundary="----=_NextPart_000_0100_01CD187D.3DAD5240" X-Priority: 3 X-MSMail-priority: Normal Importance: Normal X-Mailer: Microsoft Windows Live Mail 15.4.3538.513 X-MIMEOLE: Produced By Microsoft MimeOLE V15.4.3538.513 This is a multi-part message in MIME format. ------=_NextPart_000_0100_01CD187D.3DAD5240 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable Rob, It looks like some instruction from the 235 manual leaked into the 320 = manual concerning going above faired position. If your airframe is a = 320, faired should be as =E2=80=9Cup=E2=80=9D as you want. I=E2=80=99ve = tried flap settings above the faired in position and have found no = benefit from using such a setting, just causes you to use a higher body = angle to maintain altitude. Rig your flaps to travel from faired as the = up stop to 45 degrees as the down stop. Bill Harrelson N5ZQ 320 2,050 hrs. N6ZQ IV under construction=20 Folks, =20 A question for you experienced L320/360 builders. I am building a kit in = Australia, which I purchased partly built some years ago. It is listed = as =E2=80=9CKit 304=E2=80=9D. However, it was a kit produced in = Australia by a company building under licence from Lancair, in about = 1990, so I don=E2=80=99t know how thekit number relates to what you use = in the USA. My query relates to rigging the flaps. The builder=E2=80=99s = manual seems very confusing, as I will explain below. =20 =C2=B7 On page 10-20 at paragraph 12, it states =E2=80=9CThe = flap should have a travel range from 5/8=E2=80=9D T.E. up (from faired = in position at the inboard fillet) to full down=E2=80=9D = =20 =C2=B7 =20 =C2=B7 On page 10 -21 at paragraph 14, the diagram indicates = full down occurs with the T.E. of the flap 8 =C2=BE=E2=80=9D down from = the =E2=80=9Cfaired in position=E2=80=9D. =20 =20 =C2=B7 On page 10-24, in the top paragraph, it states = =E2=80=9CLancair flaps=E2=80=A6are designed to run from +45deg down to = -10deg up (reflex). Note that the =E2=80=9Cfaired in position=E2=80=9D = for flaps and ailerons on the plane is actually a -7deg reflex = position=E2=80=9D (On my aircraft, 45deg down from the faired in = position gives the specified 8 =C2=BE=E2=80=9D downward deflection at = the flap trailing edge). =20 =C2=B7 On page 18-19, at paragraph E 1, it states =E2=80=9CThe = up limit stop should be set to the faired in position (which is -7deg on = the Lancair 320=E2=80=99s) . The 320=E2=80=99s are designed to be faired = in for cruise which is actually 7deg reflex for the aerofoil. Thus for = take-offs, you will appear to visually drop 10 =E2=80=93 12deg of flaps = and slowly fair back in for cruise settings=E2=80=9D. =20 Maybe I=E2=80=99m stupid, but this all seems incredibly confusing to me. = My question is, what is the relevance of the statement that the travel = range should be from 5/8=E2=80=9D T.E. up, if you are at full reflex at = the faired in position? Do they require the flap to have the ability to = go to 5/8=E2=80=9D T.E. up, but then never actually use it? =20 Hope someone out there can help. Really appreciate everyone=E2=80=99s = input. =20 Regards, =20 Rob Stevens Perth, Western Australia. =20 ------=_NextPart_000_0100_01CD187D.3DAD5240 Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable
Rob,
 
It looks like some instruction from the 235 manual leaked into the = 320=20 manual concerning going above faired position. If your airframe is a = 320, faired=20 should be as =E2=80=9Cup=E2=80=9D as you want. I=E2=80=99ve tried flap = settings above the faired in=20 position and have found no benefit from using such a setting, just = causes you to=20 use a higher body angle to maintain altitude. Rig your flaps to travel = from=20 faired as the up stop to 45 degrees as the down stop.
 
Bill Harrelson
N5ZQ 320 2,050 hrs.
N6ZQ  IV under construction
 
 
 

Folks,

 

A question for you experienced L320/360 builders. I = am=20 building a kit in Australia, which I purchased partly built some years = ago. It=20 is listed as =E2=80=9CKit 304=E2=80=9D. However, it was a kit produced = in Australia by a company=20 building under licence from Lancair, in about 1990, so I don=E2=80=99t = know how thekit=20 number relates to what you use in the USA. My query relates to rigging = the=20 flaps. The builder=E2=80=99s manual seems very confusing, as I will = explain=20 below.

 

=C2=B7        =20 On page 10-20 at paragraph 12, it states = =E2=80=9CThe flap should=20 have a travel range from 5/8=E2=80=9D T.E. up (from faired in position = at the inboard=20 fillet) to full=20 down=E2=80=9D          =             &= nbsp;  =20

=C2=B7        =20

=C2=B7        =20 On page 10 -21 at paragraph 14, the diagram = indicates full=20 down occurs with the T.E. of the flap 8 =C2=BE=E2=80=9D down from the = =E2=80=9Cfaired in=20 position=E2=80=9D.

 

 

=C2=B7        =20 On page 10-24, in the top paragraph, it states = =E2=80=9CLancair=20 flaps=E2=80=A6are designed to run from +45deg down to -10deg up = (reflex). Note that the=20 =E2=80=9Cfaired in position=E2=80=9D for flaps and ailerons on the plane = is actually a =20 -7deg reflex position=E2=80=9D (On my aircraft, 45deg down from the = faired in position=20 gives the specified 8 =C2=BE=E2=80=9D downward deflection at the flap = trailing=20 edge).

 

=C2=B7        =20 On page 18-19, at paragraph E 1, it states = =E2=80=9CThe up limit=20 stop should be set to the faired in position (which is -7deg on the = Lancair=20 320=E2=80=99s) . The 320=E2=80=99s are designed to be faired in for = cruise which is actually=20 7deg reflex for the aerofoil. Thus for take-offs, you will appear to = visually=20 drop 10 =E2=80=93 12deg of flaps and slowly fair back in for cruise=20 settings=E2=80=9D.

 

Maybe I=E2=80=99m stupid, but this all seems = incredibly confusing to=20 me. My question is, what is the relevance of the statement that the = travel range=20 should be from 5/8=E2=80=9D T.E. up, if you are at full reflex at the = faired in=20 position? Do they require the flap to have the ability to go to = 5/8=E2=80=9D T.E. up,=20 but then never actually use it?

 

Hope someone out there can help. Really appreciate = everyone=E2=80=99s=20 input.

 

Regards,

 

Rob Stevens

Perth, Western Australia.

 

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