Return-Path: Sender: (Marvin Kaye) To: lml@lancaironline.net Date: Fri, 26 Mar 2004 01:23:38 -0500 Message-ID: X-Original-Return-Path: Received: from [32.97.166.32] (HELO prserv.net) by logan.com (CommuniGate Pro SMTP 4.1.8) with ESMTP id 3122298 for lml@lancaironline.net; Thu, 25 Mar 2004 23:04:09 -0500 Received: from b8p5r1 (slip-12-64-234-56.mis.prserv.net[12.64.234.56]) by attglobal.net (out2) with SMTP id <2004032604040520205paa07e>; Fri, 26 Mar 2004 04:04:05 +0000 From: "Larry Henney" X-Original-To: "'Lancair Mailing List'" Subject: RE: [LML] New 360 Project X-Original-Date: Thu, 25 Mar 2004 22:08:32 -0600 X-Original-Message-ID: <000001c412e8$0275be40$38ea400c@b8p5r1> MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0001_01C412B5.B7DB4E40" X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook, Build 10.0.2627 Importance: Normal In-Reply-To: X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1165 This is a multi-part message in MIME format. ------=_NextPart_000_0001_01C412B5.B7DB4E40 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Shane, Don't bite on every single tip that get's mentioned as a "speed" item! One item mentioned recently from a second hand vendor (cowl and exhaust pipes) spoke of several knots speed advantage while the plane actually took 5th place (or dead last stated another way) in the Airventure Cup. If indeed the plane went 10 kts faster than before the mods I'm amazed that it could fly above stall speed before these dramatic improvements :) I would add that a pressure plenum under the cowl seems to be one item on my plane that helps it gittyup. Dual electronic ignition seem to be great for both power/ speed and economy cruise to and from the races. Read Kent Passers book on Speed with Economy. It'll help you ask alot of good questions. Watch the Subaru WRX engine progress. Lot's are going into planes now- particularly RV's. I've flown 45 hours behind an early model Turbo'd Subaru and it runs great! Water cooled, auto gas, etc many good advantages. Extremely tight fit, redrive, prop choice, and design installation may make installation too time consuming and or challenging. Jerry Fishers may be the next one to fly and is tauting a gazillion horsepower and a pretty little 5 blade prop. Looking forward to reading the data. Don't install your horizontal tail with more than 1/2 deg nose down. Give up a little stall speed and go faster top end. Shoot for about 1/4 deg ND, glue it on, and take whatever you get. Many great tips mentioned: I have three possible adjustments to comments made thus far. 1) the trim tab on the right wing or left may be irrelevant. I can laterally trim my plane with 4 gallons of fuel (or 24 lbs) when solo. Me thinks trim gear totals less than two lbs. and I like looking at it on the left on my before takeoff checklist. 2) I use a header tank and am in the minority. If you want more wing fuel you do NOT have to add wing extensions. The outer bay can be converted to end up with about 21 gal in each wing. 42 gallons is alot of fuel! The added length on tips does claim to be a speed advantage but not a fuel benefit. Waiting on Jerry Knapp to race me high altitude to see if he goes relatively faster than when racing down low. Interesting question just don't know the answer. 3) A forward mounted prop governor holds little value if you have the extended engine mount (which I'd say is mandatory) so don't get too wrapped up in this discussion. There is plenty of room behind the engine with the longer engine mount. Great tips on firewall mounted oil filter and battery. More on speed. If your starting from scratch there were a 1/2 dozen or so LNC2 built of pure carbon. This'll save you between 30 and 100 lbs. I know of one in Santa Barbara that I'd love to finish to see if we can get another 1/4 kt out of this $7000 option. Purely comfort option. Ignore the center console dimensions and build your own to allow 1/4" clearance from the elevator pushrod on each side and top. In other words shrink it dramatically for happier hips both large and small. More on comfort- Sit on Temper Foam and buy ANR headsets- Non-negotiable! When it comes to Avionics don't buy any. They just add weight and slow you down! Besides every year they get 10 times better at half the cost. Unfortunatley I'm stuck in this repetitive do loop. I've got 500 hours on my handheld (but panel mounted) ICOM and an iPAQ Anywhere Map. Good luck making these tough decisions. In my first 500 hours I've got less than 2 hours IMC. One minute at a time on my turn needle. For the northerners this may not be an option. No reported actual cases of flutter that I'm aware of. Long good article by Martin Hollman that says we should be increasing our BIDs down the top and bottom of the fuselage to eliminate a possible flutter mode. I liked the article enough to believe him but not enough to back up and do the requisite BIDs. I read it after I had painted the aircraft. Some LNC2 drivers have done these extra BIDs. If I recall it's only relevant to the MK II tail birds. Come to the Sun 100 and the Airventure Cup and you'll see several fast LNC2 airplanes. Mark Ravinsky and I have raced several times and there my be a giant paradigm shift coming when next we meet. The unfortunate downside of seeing so many beauties at airshows will also double your work hours because you'll set your sites perhaps a little too high. There are Show Planes and there are Go Planes but there are rarely Show Planes made to Go, and Go, and Go! Larry Henney N360LH Fastest LNC2 in the Western Hemisphere. Heh, heh, heh! ------=_NextPart_000_0001_01C412B5.B7DB4E40 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Message
Shane,
 
Don't=20 bite on every single tip that get's mentioned as a "speed" item!  = One item=20 mentioned recently from a second hand vendor  (cowl and exhaust = pipes)=20 spoke of several knots speed advantage while the plane actually took 5th = place=20 (or dead last stated another way) in the Airventure Cup.  If indeed = the=20 plane went 10 kts faster than before the mods I'm amazed that it could = fly above=20 stall speed before these dramatic improvements=20 :)       
 
I=20 would add that a pressure plenum under the cowl seems to be one item on = my plane=20 that helps it gittyup.
 
Dual=20 electronic ignition seem to be great for both power/ speed and economy = cruise to=20 and from the races.
 
Read=20 Kent Passers book on Speed with Economy.   It'll help you = ask=20 alot of good questions.
 
Watch=20 the Subaru WRX engine progress.  Lot's are going into planes now-=20 particularly RV's.  I've flown 45 hours behind an early model = Turbo'd=20 Subaru and it runs great!  Water cooled, auto gas, etc many good=20 advantages.  Extremely tight fit, redrive, prop choice, and design=20 installation may make installation too time consuming and or = challenging. =20 Jerry Fishers may be the next one to fly and is tauting a gazillion = horsepower=20 and a pretty little 5 blade prop.  Looking forward to reading the=20 data.
 
Don't=20 install your horizontal tail with more than 1/2 deg nose down.  = Give up a=20 little stall speed and go faster top end.  Shoot for about 1/4 deg = ND, glue=20 it on, and take whatever you get.
 
Many=20 great tips mentioned: I have three possible adjustments to comments = made=20 thus far. 
    1) the trim tab on the right wing or left = may be=20 irrelevant.  I can laterally trim my plane with 4 gallons of fuel = (or 24=20 lbs) when solo.  Me thinks trim gear totals less than two = lbs. and I=20 like looking at it on the left on my before takeoff=20 checklist.  
     2)  I use a header tank and = am in the=20 minority.  If you want more wing fuel you do NOT have to add wing=20 extensions.  The outer bay can be converted to end up with about 21 = gal in=20 each wing.  42 gallons is alot of fuel!  The added = length on=20 tips does claim to be a speed advantage but not a fuel benefit.  = Waiting on=20 Jerry Knapp to race me high altitude to see if he goes relatively faster = than=20 when racing down low.  Interesting question just don't know the = answer.=20
    3) A forward mounted prop governor holds = little value=20 if you have the extended engine mount (which I'd say is mandatory) so = don't get=20 too wrapped up in this discussion.  There is plenty of room behind = the=20 engine with the longer engine mount.  Great tips on firewall = mounted oil=20 filter and battery.
 
More=20 on speed.  If your starting from scratch there were a 1/2 dozen or = so LNC2=20 built of pure carbon.  This'll save you between 30 and 100 = lbs.  I=20 know of one in Santa Barbara that I'd love to finish to see if we can = get=20 another 1/4 kt out of this $7000 option.
 
Purely=20 comfort option.  Ignore the center console dimensions and build = your own to=20 allow 1/4" clearance from the elevator pushrod on each side and = top.  In=20 other words shrink it dramatically for happier hips both large and=20 small.
More=20 on comfort- Sit on Temper Foam and buy ANR headsets-=20 Non-negotiable!
 
When=20 it comes to Avionics don't buy any.  They just add weight and slow = you=20 down!  Besides every year they get 10 times better at half the = cost. =20 Unfortunatley I'm stuck in this repetitive do loop.  I've got 500 = hours on=20 my handheld (but panel mounted) ICOM and an iPAQ Anywhere Map.  = Good luck=20 making these tough decisions.  In my first 500 hours I've got less = than 2=20 hours IMC.  One minute at a time on my turn needle.  For the=20 northerners this may not be an option.
 
No=20 reported actual cases of flutter that I'm aware of.  Long good = article by=20 Martin Hollman that says we should be increasing our BIDs down the top = and=20 bottom of the fuselage to eliminate a possible flutter mode.  I = liked the=20 article enough to believe him but not enough to back up and do the = requisite=20 BIDs.  I read it after I had painted the aircraft.  Some LNC2 = drivers=20 have done these extra BIDs.  If I recall it's only relevant to the = MK II=20 tail birds.
 
Come=20 to the Sun 100 and the Airventure Cup and you'll see several fast LNC2=20 airplanes.  Mark Ravinsky and I have raced several times and there = my be a=20 giant paradigm shift coming when next we meet.  The unfortunate = downside of=20 seeing so many beauties at airshows will also double your work=20 hours because you'll set your sites perhaps a little too = high.  There=20 are Show Planes and there are Go Planes but there are rarely Show Planes = made to=20 Go, and Go, and Go!
 
Larry=20 Henney
N360LH
Fastest LNC2 in the Western Hemisphere.  Heh, heh,=20 heh!
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