Return-Path: Sender: (Marvin Kaye) To: lml@lancaironline.net Date: Fri, 25 Jun 2004 03:15:06 -0400 Message-ID: X-Original-Return-Path: Received: from [64.4.35.225] (HELO hotmail.com) by logan.com (CommuniGate Pro SMTP 4.2b6) with ESMTP id 225491 for lml@lancaironline.net; Thu, 24 Jun 2004 20:40:15 -0400 Received: from mail pickup service by hotmail.com with Microsoft SMTPSVC; Thu, 24 Jun 2004 17:28:22 -0700 Received: from 168.103.48.213 by bay12-dav51.bay12.hotmail.com with DAV; Fri, 25 Jun 2004 00:28:22 +0000 X-Originating-IP: [168.103.48.213] X-Originating-Email: [gary21sn@hotmail.com] X-Sender: gary21sn@hotmail.com From: "Gary Edwards" X-Original-To: "Lancair Mailing List" Subject: Re: CG and Gross Weight [LNC2] X-Original-Date: Thu, 24 Jun 2004 17:28:21 -0700 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0042_01C45A10.A54F9810" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: MSN 9 Seal-Send-Time: Thu, 24 Jun 2004 17:28:21 -0700 X-MimeOLE: Produced By MSN MimeOLE V9.00.0013.2101 X-Original-Message-ID: X-OriginalArrivalTime: 25 Jun 2004 00:28:22.0493 (UTC) FILETIME=[5269D0D0:01C45A4B] This is a multi-part message in MIME format. ------=_NextPart_000_0042_01C45A10.A54F9810 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Bob M, In reviewing your weight and balance information I notice you have 90 = pounds of baggage and hats behind the seat. This amount seems very = significant for aft CG purposes. A lower amount would sure help the CG = issue without having the work to move the battery forward. With the = battery farther forward, flying solo as Mark and Scott have mentioned = might create some forward CG issues. In my bird, when we travel, we (2 of us) rarely carry more than a total = of 35 pounds of baggage and nothing on the hat shelf. If I recall, = Chris Z. carried about 90 pounds in the back of his 360, didn't like it = very well and mentioned he wouldn't do it again. When flying solo, I let the header tank down to about half full when = landing and keep about 5 gallons in each wing tank. I also put two = small, 6 pound sand bags (12 pounds total) at the back of the baggage = area. These actions help the bird feel better in the flair on landing = and it also helps keep the stick out of my gut (I'm not fat) some. Even = then, there isn't much elevator left. Your aircraft weight of 1027# seems right on with the big battery. My = plane weighs 1013# with a light battery and a 12# harmonic balancer on = the engine starter ring gear plate. =20 Lancair's approved gross weight for the 235 airframe is 1500# on take = off and 1400# on landing. Keep in mind also, the overall length of the 235 airframe is shorter = than the 320/360 models even with their short engine mount. So the = effects of the tail feathers (same size horizontal, smaller vertical and = rudder) on your 235 may well be different than the stated effects others = report for the longer 320/360 models. Also, full flaps for us is 20 = degrees, compared to their 30 to 40 degrees, so our half flaps of 10 = degrees is not much. I have not noticed much speed difference in my bird such as the 20 knots = you mentioned when flying light as opposed to flying heavy. Gary Edwards LNC2 N21SN 235/320 ------=_NextPart_000_0042_01C45A10.A54F9810 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable

Bob M,

In reviewing your weight and balance information I notice you have = 90=20 pounds of baggage and hats behind the seat. This amount seems = very=20 significant for aft CG purposes. A lower amount would sure help = the CG=20 issue without having the work to move the battery forward. With = the=20 battery farther forward, flying solo as Mark and Scott have = mentioned might=20 create some forward CG issues.

In my bird, when we travel, we (2 of us) rarely carry = more than a=20 total of 35 pounds of baggage and nothing on the hat shelf. If I = recall,=20 Chris Z. carried about 90 pounds in the back of his 360, didn't like it = very=20 well and mentioned he wouldn't do it again.

When flying solo, I let the header tank down to about half full = when=20 landing and keep about 5 gallons in each wing tank. I also = put two=20 small, 6 pound sand bags (12 pounds total) at the back of the = baggage=20 area. These actions help the bird feel better in the flair on = landing and=20 it also helps keep the stick out of my gut (I'm not fat) some. = Even then,=20 there isn't much elevator left.

Your aircraft weight of 1027# seems right on with the big=20 battery. My plane weighs 1013# with a light battery and a 12# = harmonic=20 balancer on the engine starter ring gear plate.

Lancair's approved gross weight for the 235 airframe is 1500# on = take off=20 and 1400# on landing.

Keep in mind also, the overall length of the 235 airframe is = shorter than=20 the 320/360 models even with their short engine mount. So the = effects of=20 the tail feathers (same size horizontal, smaller vertical and rudder) on = your=20 235 may well be different than the stated effects others report for the = longer=20 320/360 models. Also, full flaps for us is 20 degrees, compared to = their=20 30 to 40 degrees, so our half flaps of 10 degrees is not much.

I have not noticed much speed difference in my bird such as = the 20=20 knots you mentioned when flying light as opposed to flying heavy.

Gary Edwards

LNC2 N21SN = 235/320

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