X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Sender: To: lml@lancaironline.net Date: Wed, 12 Aug 2009 19:12:48 -0400 Message-ID: X-Original-Return-Path: Received: from snt0-omc3-s32.snt0.hotmail.com ([65.55.90.171] verified) by logan.com (CommuniGate Pro SMTP 5.2.16) with ESMTP id 3811069 for lml@lancaironline.net; Wed, 12 Aug 2009 17:42:55 -0400 Received-SPF: pass receiver=logan.com; client-ip=65.55.90.171; envelope-from=gary21sn@hotmail.com Received: from SNT112-DS16 ([65.55.90.137]) by snt0-omc3-s32.snt0.hotmail.com with Microsoft SMTPSVC(6.0.3790.3959); Wed, 12 Aug 2009 14:42:14 -0700 X-Originating-IP: [68.186.114.52] X-Originating-Email: [gary21sn@hotmail.com] X-Original-Message-ID: X-Original-Return-Path: gary21sn@hotmail.com From: "Gary Edwards" X-Original-To: "Lancair Mailing List" References: Subject: Re: p-factor takeoff in 235/320 X-Original-Date: Wed, 12 Aug 2009 14:42:02 -0700 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0434_01CA1B5B.0E53FE80" In-Reply-To: X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: MSN 9 X-MimeOLE: Produced By MSN MimeOLE V9.60.0053.2200 Seal-Send-Time: Wed, 12 Aug 2009 14:42:02 -0700 X-OriginalArrivalTime: 12 Aug 2009 21:42:14.0805 (UTC) FILETIME=[C1BE9450:01CA1B95] This is a multi-part message in MIME format. ------=_NextPart_000_0434_01CA1B5B.0E53FE80 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Randy is correct about the possibility of dragging the rudder on = take-off with the 235/320 ventral fin combination. I have done that. =20 Full fuel, with co-pilot and baggage, so aft CG, zero flap take-off. = Didn't know that it had occurred until I got home and was cleaning the = bugs off the plane, and there it was. So, no more zero flap take-offs = as the plane wants to jump off the runway at a high angle of attack. I = typically use 10 degrees of flaps for take-off where it tends to lift = off more graciously. Also, the construction of the ventral fin: constructed of foam (three = 1/2" pieces microed together or as Randy did, one solid piece) 1.5 = inches wide at the top where it attaches to the bottom of the fuselage, = and tapered to .5 inch at the bottom of the fin with a rounded bottom = edge. Gary Edwards LNC2=20 ----- Original Message -----=20 From: randy snarr=20 To: lml@lancaironline.net=20 Sent: Wednesday, August 12, 2009 3:23 AM Subject: [LML] Re: p-factor takeoff in 235/320 Doug, 3 more pics. Note I added 2.5" full length to the rudder trailing edge also added = to the bottom to match the ventral fin. Also added a few inches to the = rudder counter balance length which allowed less weight for balance. I used pink home depot foam for the rudder and ventral fin mod. I went = 2 bid on glass so it is light. If I were to do it again I would have = gone 4 bid. Airplane needed tail weight anyway... I have plenty of rudder on initial take off power. I have the 320/360 gear so my airplane is a little taller. Some guys = have scuffed the rudder on take off and landing with the original 235 = gear legs with the ventral fin mod so keep that in mind....=20 FWIW.. Randy Snarr N694RS =20 ------=_NextPart_000_0434_01CA1B5B.0E53FE80 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
Randy is correct about the possibility of dragging the rudder on = take-off=20 with the 235/320 ventral fin combination.  I have done that.  =
 
Full fuel, with co-pilot and baggage, so aft CG, zero flap=20 take-off.  Didn't know that it had occurred until I got home and = was=20 cleaning the bugs off the plane, and there it was.  So, no more = zero flap=20 take-offs as the plane wants to jump off the runway at a high angle of=20 attack.  I typically use 10 degrees of flaps for take-off where it = tends to=20 lift off more graciously.
 
Also, the construction of the ventral fin:  constructed of = foam (three=20 1/2" pieces microed together or as Randy did, one solid = piece) 1.5=20 inches wide at the top where it attaches to the bottom of the fuselage, = and=20 tapered to .5 inch at the bottom of the fin with a rounded bottom = edge.
 
Gary Edwards
LNC2 
----- Original Message -----
From: randy=20 snarr
Sent: Wednesday, August 12, = 2009 3:23=20 AM
Subject: [LML] Re: p-factor = takeoff in=20 235/320

Doug,
3 more pics.
Note I added 2.5" full length = to the=20 rudder trailing edge also added to the bottom to match the ventral = fin. Also=20 added a few inches to the rudder counter balance length which allowed = less=20 weight for balance.
I used pink home depot foam for the rudder and = ventral=20 fin mod. I went 2 bid on glass so it is light. If I were to do it = again I=20 would have gone 4 bid. Airplane needed tail weight anyway...
I have = plenty=20 of rudder on initial take off power.
I have the 320/360 gear so my = airplane=20 is a little taller. Some guys have scuffed the rudder on take off and = landing=20 with the original 235 gear legs with the ventral fin mod so keep that = in=20 mind....

FWIW..
Randy=20 Snarr
N694RS

 


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