X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Sender: To: lml@lancaironline.net Date: Tue, 23 Nov 2010 11:42:10 -0500 Message-ID: X-Original-Return-Path: Received: from web33904.mail.mud.yahoo.com ([209.191.69.182] verified) by logan.com (CommuniGate Pro SMTP 5.3.10) with SMTP id 4588974 for lml@lancaironline.net; Tue, 23 Nov 2010 01:13:31 -0500 Received-SPF: none receiver=logan.com; client-ip=209.191.69.182; envelope-from=wfhannahan@yahoo.com Received: (qmail 47235 invoked by uid 60001); 23 Nov 2010 06:12:55 -0000 DomainKey-Signature:a=rsa-sha1; q=dns; c=nofws; s=s1024; d=yahoo.com; h=Message-ID:X-YMail-OSG:Received:X-Mailer:Date:From:Subject:To:In-Reply-To:MIME-Version:Content-Type; b=eX3kxwx2CZX/qQcNOrcwO2mGnLCe7D9KWZ01XzLOuBKxZzLiIM0Q7SsMoMEsQXZqW43pHnUt2tUqjX6qW30iZsHzvOAHt3FXPdrCHBJkqFTspHOqUTGvqHCli/kv4lECz8Il4ob4t1qdGSWcZZ/IkNy8ARQQ6a6gT0uJ0inQnMU=; X-Original-Message-ID: <419362.46843.qm@web33904.mail.mud.yahoo.com> X-YMail-OSG: qmEpWZoVM1n8zM2lSLbLnUtMgAweiPoHX8DKuJE4koLIS3k 6Cmd7On3l.Vs0FcnrMS3LVcv59B2tA7FIkVyqEVS6A6tceslsswA6hVDMHZ6 ldh56f2ui9mavdkdm0.sAc2kidVvhxRbMCXQ8a6ps4q4CIvsbShnz8y_uIV4 Zy7_gAsY.W2j2biKEKDgt4qmUNRzbOuWfxxMH_.QBjEwv0qyG7gg2OwJUA1W BUQqDMFdWcOJ31UMPf2Kpy9I8lzyBygYPsbDssILX4_AwidngQiADex0FfJV krEBYI_jiHQWhkD3eigEVN2LFUPTry7Qd.5ZhzUD_kPUIl2d09i83ZPG65L5 .2N1bQNTOOXmzRlkvdHqtBLR7vw-- Received: from [174.29.171.130] by web33904.mail.mud.yahoo.com via HTTP; Mon, 22 Nov 2010 22:12:55 PST X-Mailer: YahooMailClassic/11.4.9 YahooMailWebService/0.8.107.285259 X-Original-Date: Mon, 22 Nov 2010 22:12:55 -0800 (PST) From: Bill Hannahan Subject: Re: [LML] Re: efficiency X-Original-To: Lancair Mailing List In-Reply-To: MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="0-857270703-1290492775=:46843" --0-857270703-1290492775=:46843 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Thanks Terrence, =0A=0A=0A=0A=0A=0APower settings after takeoff ranged from cruise climb at= =0A1900 x 20 inches to 1750 x 18 inches in cruise to 1550 x 15 inches in de= scent.=20 What power settings did you use Randy? I noticed you were=C2=A0 quite a bit= faster.=20 I=0Aleaned until the leanest cylinder began to misfire, then enriched sligh= tly. At these=0Alow rpm=E2=80=99s the fuel has plenty of time to burn with = the factory timing. =0A=0A=C2=A0=0A=0AThe fuel mixture distribution is poor= at part throttle; a=0Awell calibrated injection system would probably give= significant improvement=0Aunder race conditions.=0A=0A=C2=A0=0A=0AIn norma= l cross country flying I go high with the throttle=0Aabout a half inch off = wide open which results in all four egt=E2=80=99s peaking at the=0Asame tim= e, with no loss of MP. FI would probably not offer much improvement in=0Ath= at environment.=0A=0A=C2=A0=0A=0AA higher compression ratio and EI would pr= obably help significantly=0Aat high altitude. If I were doing it again I wo= uld go with 9.5:1 and red line=0AMP at 25 inches, even on takeoff.=20 At my home base, Longmont=0A CO, 5050=0Amsl, I see 22 inches on takeoff and= =C2=A0use 1800-2500 feet of runway=0Adepending on weight and density altit= ude.=0A=0A=C2=A0=0A=0ABy the way, at these low rpm=E2=80=99s you need to ch= eck that you=0Aare not flying with the prop on the high pitch stop. It is a= bit like trying to=0Acrank your power steering past full lock. The governo= r has a relief valve,=0A350-400 psi, but you do not want to be on that cont= inuously. So pull the rpm=0Aback about 50 below your set point, then back t= o the set point. If it is on the=0Astop the rpm will not pull down. If you = accelerate in descent check it again. =0A=0ARegards, Bill Hannahan =20 wfhannahan@yahoo.com --- On Mon, 11/22/10, Terrence O'Neill wrote: From: Terrence O'Neill Subject: [LML] Re: efficiency To: lml@lancaironline.net Date: Monday, November 22, 2010, 4:05 PM Zowie! =C2=A0What power settings did you use for that, Bill?You had to have= matching EGTs... how did you do that? TerrenceL235/320 N211AL On Nov 21, 2010, at 9:17 PM, Bill Hannahan wrote: =0A=0APlease excuse a little bragging. =C2=A0Steve Alderman and I flew my L= ancair 360 to the Copperstate=0Afly-in SW of Phoenix and competed in the Fu= elventure efficiency competition. =C2=A0The planes are weighed with fuel on= board. Payload [pilot=0Apassenger and baggage, up to 200 lb per seat] is we= ighed separately. =C2=A0The planes fly around a 383 mile course. Timing is = from=0Aliftoff to overflight of midfield on return from the course. The pla= nes and=0Apayload are weighed on return to determine the mass of fuel burne= d. =C2=A0The score is calculated using the latest CAF=C3=89 formula; =C2=A0= Caf=C3=A9 score equals payload raised to the 0.7 power, times,=0Amiles per = gallon, times, average speed in mph raised to the 1.7 power. =C2=A0This for= mula puts a strong emphasis on speed, reflecting=0Areality in the evaluatio= n of cross country aircraft. =C2=A0Steve is an experienced CAF=C3=89 racer = having obtained a remarkably=0Ahigh level of performance from his KR2 under= an earlier CAFE formula. He even=0Aoutperformed Lance Neibauer flying the = first Lancair 235. =C2=A0http://cafefoundation.org/v2/pdf_cafe_cafe400/86CA= FE400.pdf=0A =C2=A0Steve let me know when I was a degree or two off course = and=0Akept track of our ground speed and true airspeed. =C2=A0Our average s= peed around the course was 188.9 mph at 36.58=0AMPG, [5.16 GPH] =C2=A0Our C= AF=C3=89 score was 1,223,333.2=C2=A0=C2=A0 second to Klaus Savier=E2=80=99s= highly developed=0AVariEze. =C2=A0http://www.fuelventure.org/documents/20= 10_results.html =C2=A0To my knowledge it is the highest CAF=C3=89 score by = a Lancair using=0Athe latest formula. =C2=A0The engine is a stock Lycoming = 360 A1A, with 8.5:1=0Acompression ratio, two magnetos and a carburetor, swi= nging a Hartzell prop.=0AEmpty weight is 1,015 pounds. =C2=A0Steve is build= ing a Lancair 360 of his own, and plans to=0Akick my a## next year. =C2=A0= It is good fun, a test of planning and flying skills, and a=0Agreat way to = meet a group of friendly, interesting, like minded people. I=0Arecommend th= at everybody give it a try.=0A=0A=0A=0A Regards, Bill Hannahan =20 wfhannahan@yahoo.com =0A=0A=0A=0A=0A=0A=0A=0A =20 =0A=0A=0A --0-857270703-1290492775=:46843 Content-Type: text/html; charset=utf-8 Content-Transfer-Encoding: quoted-printable
Thanks Terrence,

<= link rel=3D"File-List" href=3D"file:///C:%5CUsers%5CBill%5CAppData%5CLocal%= 5CTemp%5Cmsohtml1%5C01%5Cclip_filelist.xml">=0A=0A=0A

Please exc= use a little bragging.

 

Steve Alderman and I flew my Lancair 360 = to the Copperstate=0Afly-in SW of Phoenix and competed in the Fuelventure e= fficiency competition.

 

The planes are weighed with fuel onboard.= Payload [pilot=0Apassenger and baggage, up to 200 lb per seat] is weighed = separately.

 

The planes fly around a 383 mile course. Timing is f= rom=0Aliftoff to overflight of midfield on return from the course. The plan= es and=0Apayload are weighed on return to determine the mass of fuel burned= .

 

The score is calculated using the latest CAF=C3=89 formula;

 

Caf=C3=A9 score equals payload raised to the 0.7 power, times,=0Am= iles per gallon, times, average speed in mph raised to the 1.7 power.

 

This formula puts a strong emphasis on speed, reflecting=0Areality in= the evaluation of cross country aircraft.

 

Steve is an experienc= ed CAF=C3=89 racer having obtained a remarkably=0Ahigh level of performance= from his KR2 under an earlier CAFE formula. He even=0Aoutperformed Lance N= eibauer flying the first Lancair 235.

 

http://cafefoundation.org/v2/pdf_cafe_cafe400/86CAFE400.pdf=0A

 

Steve let me know when I was a degree or two off course and=0Akept= track of our ground speed and true airspeed.

 

Our average speed = around the course was 188.9 mph at 36.58=0AMPG, [5.16 GPH]

 

Our C= AF=C3=89 score was 1,223,333.2   second t= o Klaus Savier=E2=80=99s highly developed=0AVariEze.

 

http://www.fuelventure.org/documents/2010_results.html=

 

To my knowledge it is the highest CAF=C3=89 score by a Lancair = using=0Athe latest formula.

 <= /p>

The engine is a stock Lycoming 360 A= 1A, with 8.5:1=0Acompression ratio, two magnetos and a carburetor, swinging= a Hartzell prop.=0AEmpty weight is 1,015 pounds.

 

Steve is build= ing a Lancair 360 of his own, and plans to=0Akick my a## next year.

 

It is good fun, a test of planning and flying skills, and a=0Agreat wa= y to meet a group of friendly, interesting, like minded people. I=0Arecomme= nd that everybody give it a try.

=0A=0A=0A=0A
Regards,
Bill Hannahan

=0A=0A= =0A=0A=0A=0A=0A=0A

=0A=0A=0A=0A=0A=0A=0A=0A --0-857270703-1290492775=:46843--