X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Sender: To: lml@lancaironline.net Date: Wed, 24 Mar 2010 09:51:52 -0400 Message-ID: X-Original-Return-Path: Received: from mta31.charter.net ([216.33.127.82] verified) by logan.com (CommuniGate Pro SMTP 5.3.4) with ESMTP id 4177039 for lml@lancaironline.net; Wed, 24 Mar 2010 09:10:15 -0400 Received-SPF: pass receiver=logan.com; client-ip=216.33.127.82; envelope-from=troneill@charter.net Received: from imp10 ([10.20.200.15]) by mta31.charter.net (InterMail vM.7.09.02.04 201-2219-117-106-20090629) with ESMTP id <20100324130938.ORUF22217.mta31.charter.net@imp10>; Wed, 24 Mar 2010 09:09:38 -0400 Received: from [192.168.1.101] ([75.132.241.174]) by imp10 with smtp.charter.net id x19d1d00D3mUFT70519dL7; Wed, 24 Mar 2010 09:09:38 -0400 X-Authority-Analysis: v=1.0 c=1 a=Ia-xEzejAAAA:8 a=hOpmn2quAAAA:8 a=Vo69JiP7TBOkZnO9Ug0A:9 a=36mWCIUtDstnkr7DLnwA:7 a=t0umoJFUYuopIm1TJvZWVJBWcEwA:4 a=CjuIK1q_8ugA:10 a=VQWZxD7wvt0A:10 a=CVU0O5Kb7MsA:10 a=Whv8HLVs5OMA:10 a=EzXvWhQp4_cA:10 a=hUswqBWy9Q8A:10 a=JWiPwlOzGBVyFwwQi9wA:9 a=Og7InxPJqR25ROF4E30A:7 a=Uy2RB8dZtAtQ58CetuAR5Z0MrzcA:4 Subject: Re: [LML] Re: Lancair 235 Mime-Version: 1.0 (Apple Message framework v1077) Content-Type: multipart/alternative; boundary=Apple-Mail-118--928799019 From: Terrence O'Neill In-Reply-To: X-Original-Date: Wed, 24 Mar 2010 08:09:36 -0500 X-Original-Cc: lorn@dynacomm.us X-Original-Message-Id: <721E77A3-9201-4C23-8315-1B3E63314CC4@charter.net> References: X-Original-To: "Lancair Mailing List" X-Mailer: Apple Mail (2.1077) --Apple-Mail-118--928799019 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset=us-ascii lorn and randy Don't know yet, the cruise at 8 gph... have been trying different = injectors nozzles on one lean cylinder... to be able to go lean of = peak... and distracted with a mystery problem with the comm radio = (antenna?)... finally resorted to an ugly external, which may solve = it... and now am changing the canopy opening design from the trapezoid = wobbly one with the hard-to-ready camlocks that I felt were a safgety = item .. to powered slide rails. So far I'm doing about 165k down low at about cruise 24/24.5, without = experimenting with how much reflex... a little. Will focus on reflexing... noting Randy's comment... and reducing the = airflow through the engine... running about 285F now... I expect I'll be a few knots slower because of the h-tail slots, and = the anti-servo trimmer linkage which is not as clean as Randy's and = others. Terrence O'Neill 235/320 N211AL On Mar 24, 2010, at 5:27 AM, randy snarr wrote: > My numbers are similar to what has been stated. > In my 235/320 I am running injected with electronic ignition and MT 3 = blade, best speed for me is at 8000 in cool smooth air 2750 rpm = yields198-200 knots TAS depending on the day. Never seen over 200. Burn = is 9 GPH rich of peak. This is with the new MT with the schimitar = blades. I had the straight blades ( until I broke it) and the best I = could get with that propeller was 196 knots TAS never faster. The new = prop got me another 4 knots (they predicted 5) . > I believe the bottom of the 235 wing has more curve at the rear lower = airfoil giving it a slightly down flap effect. Don Goetz told me one day = this was done in an attempt to give the wing better low speed = characteristics. I am amazed at how much the airplane speeds up with the = flaps in reflex. 15 knots or so on mine.. > It looks to me like the 320/360 wing has the same shape but to a = lesser degree resulting in slightly less drag... >=20 > Randy Snarr > 235/320 > N694RS >=20 > --- On Tue, 3/23/10, Lorn H Olsen wrote: >=20 > From: Lorn H Olsen > Subject: [LML] Re: Lancair 235 > To: lml@lancaironline.net > Date: Tuesday, March 23, 2010, 6:09 AM >=20 > Terrence, >=20 > I don't know for sure. Here are some possibilities. >=20 > 1) I could just be wrong. > 2) Reports from 235/320 owners that I have spoken to could understate = the speed. > 3) Reports on the 320 from the factory could overstate the speed. > 4) The rectangular cowling on the 235/320 could make a difference. >=20 > How fast does your 235/320 cruise at 8 gph. >=20 > Lorn >=20 > > From: Terrence O'Neill > > Date: March 22, 2010 12:00:17 PM EDT > > To: lml@lancaironline.net > > Subject: Re: [LML] Re: Lancair 235 > >=20 > >=20 > > Lorn, > > Quick question: why is the 320 some 15 knots faster than the 235 w/ = 320 engine with less wetted area (slightly smaller fuselage)? > > Terrence (w/ 235 w/ 320 engine) N211AL >=20 > -- > Lorn H. 'Feathers' Olsen, MAA, ASMEL, ASES, Comm, Inst > DynaComm, Corp., 248-345-0500, mailto:lorn@dynacomm.us > LNC2, FB90/92, O-320-D1F, 1,700 hrs, N31161, Y47, SE Michigan >=20 >=20 > -- > For archives and unsub = http://mail.lancaironline.net:81/lists/lml/List.html >=20 --Apple-Mail-118--928799019 Content-Transfer-Encoding: quoted-printable Content-Type: text/html; charset=us-ascii lorn = and randy

Don't know yet, the cruise at 8 gph... have = been trying different injectors nozzles on one lean cylinder... to be = able to go lean of peak... and distracted with a mystery problem with = the comm radio (antenna?)... finally resorted to an ugly external, which = may solve it... and now am changing the canopy opening design from the = trapezoid wobbly one with the hard-to-ready camlocks that I felt were a = safgety item .. to powered slide rails.
So far I'm doing about = 165k down low at about cruise 24/24.5, without experimenting with how = much reflex... a little.
Will focus on  reflexing... = noting Randy's comment... and reducing the airflow through the engine... = running about 285F now...
I expect I'll be a  few knots = slower because of the h-tail slots, and the anti-servo trimmer linkage = which is not as clean as Randy's and = others.

Terrence = O'Neill
235/320
N211AL

On = Mar 24, 2010, at 5:27 AM, randy snarr wrote:

My numbers are similar to what = has been stated.
In my 235/320 I am running injected with electronic = ignition and MT 3 blade, best speed for me is at 8000 in cool smooth air = 2750 rpm yields198-200 knots TAS depending on the day. Never seen over = 200. Burn is 9 GPH rich of peak. This is with the new MT with the = schimitar blades. I had the straight blades ( until I broke it) and the = best I could get with that propeller was 196 knots TAS never faster. The = new prop got me another 4 knots (they predicted 5) .
I believe the = bottom of the 235 wing has more curve at the rear lower airfoil giving = it a slightly down flap effect. Don Goetz told me one day this was done = in an attempt to give the wing better low speed characteristics. I am = amazed at how much the airplane speeds up with the flaps in reflex. 15 = knots or so on mine..
It looks to me like the 320/360 wing has the same shape but to a lesser degree resulting in slightly less = drag...

Randy Snarr
235/320
N694RS

--- On Tue, = 3/23/10, Lorn H Olsen <lorn@dynacomm.us> = wrote:

From: Lorn H Olsen <lorn@dynacomm.us>
Subject: = [LML] Re: Lancair 235
To: lml@lancaironline.net
Date: = Tuesday, March 23, 2010, 6:09 AM

Terrence,

I don't know for sure. Here are = some possibilities.

1)  I could just be wrong.
2)  = Reports from 235/320 owners that I have spoken to could understate the = speed.
3)  Reports on the 320 from the factory could overstate = the speed.
4)  The rectangular cowling on the 235/320 could make = a difference.

How fast does your 235/320 cruise at 8 = gph.

Lorn

> From: Terrence O'Neill <troneill@charte= r.net>
> Date: March 22, 2010 12:00:17 PM EDT
> To: = lml@lancaironl= ine.net
> Subject: Re: [LML] Re: Lancair 235
>
> =
> Lorn,
> Quick question:  why is the 320 some 15 = knots faster than the 235 w/ 320 engine with less wetted area (slightly = smaller fuselage)?
> Terrence (w/ 235 w/ 320 engine) = N211AL

--
Lorn H. 'Feathers' Olsen, MAA, ASMEL, ASES, Comm, = Inst
DynaComm, Corp., 248-345-0500, mailto:lorn@dynacomm.us
LNC2, FB90/92, O-320-D1F, 1,700 hrs, N31161, Y47, SE = Michigan


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