X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from qmta08.emeryville.ca.mail.comcast.net ([76.96.30.80] verified) by logan.com (CommuniGate Pro SMTP 5.4c2) with ESMTP id 4936143 for flyrotary@lancaironline.net; Thu, 07 Apr 2011 20:22:46 -0400 Received-SPF: pass receiver=logan.com; client-ip=76.96.30.80; envelope-from=kenpowell@comcast.net Received: from omta07.emeryville.ca.mail.comcast.net ([76.96.30.59]) by qmta08.emeryville.ca.mail.comcast.net with comcast id UoK71g0021GXsucA8oNC46; Fri, 08 Apr 2011 00:22:12 +0000 Received: from sz0159.ev.mail.comcast.net ([76.96.26.227]) by omta07.emeryville.ca.mail.comcast.net with comcast id UoNC1g00e4tzcqL8UoNCLz; Fri, 08 Apr 2011 00:22:12 +0000 Date: Fri, 8 Apr 2011 00:22:12 +0000 (UTC) From: kenpowell@comcast.net To: Rotary motors in aircraft Message-ID: <722278040.3563236.1302222132173.JavaMail.root@sz0159a.emeryville.ca.mail.comcast.net> In-Reply-To: Subject: Re: [FlyRotary] Re: Tracy's RV-8 Wings - LSA RV-4 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_Part_3563235_924737397.1302222132172" X-Originating-IP: [76.125.123.2] X-Mailer: Zimbra 6.0.5_GA_2431.RHEL5_64 (ZimbraWebClient - IE7 (Win)/6.0.5_GA_2427.RHEL4) ------=_Part_3563235_924737397.1302222132172 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable I resolved my potential medical issues by switching to drugs that are OK by= the FAA so my Medical is no longer in danger.=C2=A0 However, I am still bo= thered=C2=A0by the possiblity of losing my medical.=C2=A0 I still have my R= V-4 kit (I just can't seem to give up!) and I think that I am going to buil= d it as a=C2=A0 LSA.=C2=A0 If I use an O-200 with with EDIS-4 ignition and = a light weight starter I can have 100 HP for under 200 lbs.=C2=A0 It might = be possible to build a 860 lb or less RV-4.=C2=A0 With a longer wing to inc= rease wing area from 110 sq ft to 125 sq ft (same as a RV-12) and a gross o= f 1320 lbs it should be LSA legal.=C2=A0 There was a posting on Van's Air F= orce saying that the top speed of an O-200 RV-3 was only 150 MPH so it seem= s reasonable that a 100 HP RV-4 with 125 sq ft of wing should not bust the = 138 MPH LSA speed limit.=C2=A0 I will probably build a Fastback to regain s= ome of the yaw stability lost from the longer nose.=20 What do you guys think?=20 Ken Powell=20 ----- Original Message -----=20 From: "Tracy" =20 To: "Rotary motors in aircraft" =20 Sent: Thursday, April 7, 2011 4:10:24 PM=20 Subject: [FlyRotary] Re: Tracy's RV-8 Wings=20 Hi Ken,=C2=A0 long time no hear!=20 =C2=A0 I extended each wing 12.75 inches and used the "Sheared" wing tips w= hich are 6" longer than the standard Hoerner tips.=C2=A0 I think Van's may = have switched to Sheared tips as standard now.=20 Tracy=20 ----- Original Message -----=20 From: "Tracy" =20 To: "Rotary motors in aircraft" =20 Sent: Thursday, April 7, 2011 4:10:24 PM=20 Subject: [FlyRotary] Re: Tracy's RV-8 Wings=20 Hi Ken,=C2=A0 long time no hear!=20 =C2=A0 I extended each wing 12.75 inches and used the "Sheared" wing tips w= hich are 6" longer than the standard Hoerner tips.=C2=A0 I think Van's may = have switched to Sheared tips as standard now.=20 Tracy=20 On Thu, Apr 7, 2011 at 2:26 PM, < kenpowell@comcast.net > wrote:=20 Tracy,=20 How long are your wing extensions on each wing?=20 Ken Powell=20 501-847-4721=20 ------=_Part_3563235_924737397.1302222132172 Content-Type: text/html; charset=utf-8 Content-Transfer-Encoding: 7bit

I resolved my potential medical issues by switching to drugs that are OK by the FAA so my Medical is no longer in danger. However, I am still bothered by the possiblity of losing my medical. I still have my RV-4 kit (I just can't seem to give up!) and I think that I am going to build it as a LSA. If I use an O-200 with with EDIS-4 ignition and a light weight starter I can have 100 HP for under 200 lbs. It might be possible to build a 860 lb or less RV-4. With a longer wing to increase wing area from 110 sq ft to 125 sq ft (same as a RV-12) and a gross of 1320 lbs it should be LSA legal. There was a posting on Van's Air Force saying that the top speed of an O-200 RV-3 was only 150 MPH so it seems reasonable that a 100 HP RV-4 with 125 sq ft of wing should not bust the 138 MPH LSA speed limit. I will probably build a Fastback to regain some of the yaw stability lost from the longer nose.

What do you guys think?

Ken Powell

----- Original Message -----
From: "Tracy" <rwstracy@gmail.com>
To: "Rotary motors in aircraft" <flyrotary@lancaironline.net>
Sent: Thursday, April 7, 2011 4:10:24 PM
Subject: [FlyRotary] Re: Tracy's RV-8 Wings

Hi Ken, long time no hear!

I extended each wing 12.75 inches and used the "Sheared" wing tips which are 6" longer than the standard Hoerner tips. I think Van's may have switched to Sheared tips as standard now.

Tracy

On Thu, Apr 7, 2011 at 2:26 PM, <kenpowell@comcast.net> wrote:

Tracy,

How long are your wing extensions on each wing?

Ken Powell

501-847-4721

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